Sonstige
Filtern
Erscheinungsjahr
Dokumenttyp
Sprache
- Englisch (337) (entfernen)
Schlagworte
- Conference (253)
- Konferenz (252)
- Accident (137)
- Unfall (137)
- Germany (134)
- Deutschland (131)
- Injury (101)
- Verletzung (100)
- Unfallrekonstruktion (73)
- Analyse (math) (61)
- Analysis (math) (60)
- Statistics (59)
- Schweregrad (Unfall, Verletzung) (58)
- Statistik (58)
- Severity (accid, injury) (56)
- Tödlicher Unfall (54)
- Fatality (53)
- Simulation (48)
- Fußgänger (47)
- Pedestrian (47)
- Reconstruction (accid) (47)
- Safety (47)
- Sicherheit (46)
- injury) (45)
- Schweregrad (Unfall (43)
- Verletzung) (43)
- Bewertung (42)
- Car (42)
- Datenbank (42)
- Data acquisition (41)
- Datenerfassung (41)
- Evaluation (assessment) (41)
- Severity (accid (39)
- Anfahrversuch (37)
- On the spot accident investigation (37)
- Untersuchung am Unfallort (37)
- Cause (36)
- Collision (36)
- Fahrzeug (36)
- Ursache (36)
- Vehicle (36)
- Zusammenstoß (36)
- Unfallverhütung (31)
- Accident prevention (30)
- Radfahrer (30)
- Cyclist (29)
- Data bank (29)
- Frontalzusammenstoß (29)
- Europa (28)
- Europe (28)
- Head on collision (28)
- Motorcyclist (27)
- Motorradfahrer (27)
- Accident reconstruction (26)
- Driver (26)
- Fahrer (26)
- Geschwindigkeit (26)
- Impact test (veh) (26)
- Fahrerassistenzsystem (25)
- Speed (25)
- Insasse (23)
- Leistungsfähigkeit (allg) (23)
- Prüfverfahren (23)
- Test method (23)
- Active safety system (22)
- Driver assistance system (22)
- Test (22)
- PKW (21)
- Aktives Sicherheitssystem (20)
- Efficiency (20)
- Method (20)
- Passives Sicherheitssystem (20)
- Vehicle occupant (20)
- Risiko (19)
- Versuch (19)
- Passive safety system (18)
- Pkw (18)
- Verfahren (18)
- Interview (17)
- Benutzung (16)
- Child (16)
- Head (16)
- Kind (16)
- Kopf (16)
- Risk (16)
- Sicherheitsgurt (16)
- Use (16)
- Anthropometric dummy (15)
- Biomechanics (15)
- Biomechanik (15)
- Motorrad (15)
- Risikobewertung (15)
- Seitlicher Zusammenstoß (15)
- Motorcycle (14)
- Risk assessment (14)
- Safety belt (14)
- Side impact (14)
- Accident rate (13)
- Dummy (13)
- Leg (human) (13)
- Alte Leute (12)
- Auffahrunfall (12)
- Brustkorb (12)
- Fahrzeugsitz (12)
- Improvement (12)
- Rear end collision (12)
- Rechenmodell (12)
- Unfallhäufigkeit (12)
- Verbesserung (12)
- Überschlagen (12)
- Behaviour (11)
- Database (11)
- Development (11)
- Entwicklung (11)
- Mathematical model (11)
- Measurement (11)
- Old people (11)
- Schutzhelm (11)
- Seat (veh) (11)
- Verhalten (11)
- Airbag (10)
- Berechnung (10)
- Crash helmet (10)
- Deformation (10)
- Fehler (10)
- Human factor (10)
- Krankenhaus (10)
- Menschlicher Faktor (10)
- Messung (10)
- Overturning (veh) (10)
- Thorax (10)
- Age (9)
- Alter (9)
- Bein (menschl) (9)
- Bremsung (9)
- Calculation (9)
- Error (9)
- Fahranfänger (9)
- Front (9)
- Hospital (9)
- Impact test (9)
- Japan (9)
- Prognose (9)
- Recently qualified driver (9)
- USA (9)
- Verformung (9)
- Wirbelsäule (9)
- Air bag (restraint system) (8)
- Braking (8)
- Digital model (8)
- Erste Hilfe (8)
- Lorry (8)
- Numerisches Modell (8)
- Prevention (8)
- Antikollisionssystem (7)
- Austria (7)
- Cervical vertebrae (7)
- Fracture (bone) (7)
- Halswirbel (7)
- Impact study (7)
- Interior (veh) (7)
- Knee (human) (7)
- Knochenbruch (7)
- Modification (7)
- Spinal column (7)
- Standardisierung (7)
- Vereinigtes Königreich (7)
- Veränderung (7)
- Österreich (7)
- Adolescent (6)
- China (6)
- Collision avoidance system (6)
- Compatibility (6)
- Cost benefit analysis (6)
- Driver training (6)
- EU (6)
- Fahrausbildung (6)
- Fahrzeuginnenraum (6)
- First aid (6)
- Forecast (6)
- India (6)
- Indien (6)
- Jugendlicher (6)
- Knie (menschl) (6)
- Knotenpunkt (6)
- Kompatibilität (6)
- Ort (Position) (6)
- Portugal (6)
- Research report (6)
- Software (6)
- Standardization (6)
- Transport infrastructure (6)
- Vehicle regulations (6)
- Verminderung (6)
- Vorn (6)
- Wirksamkeitsuntersuchung (6)
- Wirtschaftlichkeitsrechnung (6)
- Analyse (Math) (5)
- Angle (5)
- Autobahn (5)
- Correlation (math, stat) (5)
- Decrease (5)
- Deformable barrier (impact test) (5)
- Delivery vehicle (5)
- Eins (5)
- Electronic stability program (5)
- Fahrstabilität (5)
- Forschungsarbeit (5)
- Frau (5)
- Human body (5)
- Impact sled (5)
- International (5)
- Location (5)
- Menschlicher Körper (5)
- One (5)
- Policy (5)
- Politik (5)
- Post crash (5)
- Research project (5)
- Sensor (5)
- Technologie (5)
- Technology (5)
- Tunnel (5)
- Vehicle handling (5)
- Verhütung (5)
- Verkehrsinfrastruktur (5)
- Winkel (5)
- Abdomen (4)
- Aufprallschlitten (4)
- Automatisch (4)
- Belastung (4)
- Bemessung (4)
- Bremse (4)
- Classification (4)
- Coefficient of friction (4)
- Collision test (veh) (4)
- Damage (4)
- Deformierbare Barriere (Anpralltest) (4)
- Design (overall design) (4)
- Detection (4)
- Distraction (4)
- Driver information (4)
- Driving (veh) (4)
- Drunkenness (4)
- Dynamics (4)
- Dynamik (4)
- Einstellung (psychol) (4)
- Elektronisches Stabilitätsprogramm (4)
- Erziehung (4)
- Estimation (4)
- Fahrdatenschreiber (4)
- Fahrgeschicklichkeit (4)
- Fahrzeugführung (4)
- Finite element method (4)
- Fire (4)
- Forschungsbericht (4)
- France (4)
- Frankreich (4)
- Gesetzgebung (4)
- Highway design (4)
- Information (4)
- Junction (4)
- Klassifizierung (4)
- Korrelation (math, stat) (4)
- LKW (4)
- Legislation (4)
- Load (4)
- Medical aspects (4)
- Medizinische Gesichtspunkte (4)
- Motorway (4)
- Oberflächentextur (4)
- Occupant (veh) (4)
- Probability (4)
- Regression analysis (4)
- Regressionsanalyse (4)
- Reibungsbeiwert (4)
- Reproducibility (4)
- Reproduzierbarkeit (4)
- Sachschaden (4)
- Schutzeinrichtung (4)
- Schweden (4)
- Seite (4)
- Severity (acid (4)
- Sichtbarkeit (4)
- Straßenentwurf (4)
- Surface texture (4)
- Technische Vorschriften (Kraftfahrzeug) (4)
- Trunkenheit (4)
- Unfallfolgemaßnahme (4)
- United Kingdom (4)
- Unterleib (4)
- Verkehrsteilnehmer (4)
- Sichtbarkeit (4)
- Wahrscheinlichkeit (4)
- Woman (4)
- Ablenkung (psychol) (3)
- Anti locking device (3)
- Attitude (psychol) (3)
- Ausrüstung (3)
- Automatic (3)
- Autonomes Fahren (3)
- Autonomous driving (3)
- Befreiung (Bergung) (3)
- Bein (3)
- Bicycle (3)
- Blickfeld (3)
- Brake (3)
- Bus (3)
- Camera (3)
- Coach (3)
- Crash test (3)
- Czech Republic (3)
- Decision process (3)
- Detektion (3)
- Digitale Bildverarbeitung (3)
- Durability (3)
- Education (3)
- Effectiveness (3)
- Electric vehicle (3)
- Elektrofahrzeug (3)
- Entscheidungsprozess (3)
- Equipment (3)
- Event data recorder (road vehicle) (3)
- Extrication (3)
- Fahrrad (3)
- Field of vision (3)
- Gefahrenabwehr (3)
- Griffigkeit (3)
- Information documentation (3)
- Kamera (3)
- Kleidung (3)
- Korea (Süd) (Demokratische Republik) (3)
- Lieferfahrzeug (3)
- Lkw (3)
- Main road (3)
- Man (3)
- Mann (3)
- Medizinische Untersuchung (3)
- Methode der finiten Elemente (3)
- Norm (tech) (3)
- Overlapping (3)
- Passenger (3)
- Reisebus (3)
- Republic of Korea (3)
- Road network (3)
- Road user (3)
- Run off the road (accid) (3)
- Safety fence (3)
- Security (3)
- Skidding resistance (3)
- Skill (road user) (3)
- Spain (3)
- Spanien (3)
- Specification (standard) (3)
- Specifications (3)
- Steifigkeit (3)
- Stiffness (3)
- Straßennetz (3)
- Time (3)
- Tschechische Republik (3)
- United kingdom (3)
- Verschiebung (3)
- Versuchspuppe (3)
- Vorne (3)
- Windschutzscheibe (3)
- Zeit (3)
- Abbiegen (2)
- Abkommen von der Fahrbahn (Unfall) (2)
- Absorption (2)
- Accompanied driving (2)
- Accuracy (2)
- Adult (2)
- Advanced driver assistance system (2)
- Air pollution (2)
- Antiblockiereinrichtung (2)
- Apparatus (measuring) (2)
- Australia (2)
- Australien (2)
- Automatische Notbremsung (2)
- Autonomes Fahrzeug (2)
- Autonomous emergency braking (2)
- Autonomous vehicle (2)
- Begleitetes Fahren (2)
- Behinderter (2)
- Beinahe Unfall (2)
- Blutkreislauf (2)
- Boden (2)
- Body (car) (2)
- Brand (2)
- Bremsweg (2)
- Carbon dioxide (2)
- Circulation (blood) (2)
- Climate change (2)
- Clothing (2)
- Communication (2)
- Compliance (specif) (2)
- Contact (tyre road) (2)
- Cost (2)
- Crash Test (2)
- Crash victim (2)
- Crashtest (2)
- Crossing the road (2)
- Data base (2)
- Dauerhaftigkeit (2)
- Depth (2)
- Deutschalnd (2)
- Digital image processing (2)
- Disablement (2)
- Dreidimensional (2)
- Driving test (2)
- EU directive (2)
- EU-Richtlinie (2)
- Edge (2)
- Eindringung (2)
- Eingabedaten (2)
- Electric bicycle (2)
- Electronic driving aid (2)
- Elektrofahrrad (2)
- Emergency (2)
- Emission (2)
- Entdeckung (2)
- Ergonomics (2)
- Ergonomie (2)
- Erwachsener (2)
- Eu (2)
- Exhaust aftertreatment (2)
- Experience (human) (2)
- Expert system (2)
- Expertensystem (2)
- Fahrbahnüberquerung (2)
- Fahrerinformation (2)
- Fahrprüfung (2)
- Fahrsimulator (2)
- Fernverkehrsstraße (2)
- Feuer (2)
- Foot (not a measure) (2)
- Fuß (2)
- Führerschein (2)
- Geländefahrzeug (2)
- Gesetzesübertretung (2)
- Gewicht (2)
- Government (national) (2)
- Harmonisation (2)
- Hazard (2)
- Head restraint (2)
- Highway (2)
- Hinten (2)
- In service behavior (2)
- Incident detection (2)
- Input data (2)
- Intelligent transport system (2)
- Intersection (2)
- Jahreszeit (2)
- Karosserie (2)
- Klimawandel (2)
- Kommunikation (2)
- Kontakt Reifen Straße (2)
- Kontrolle (2)
- Kopfstütze (2)
- Kosten (2)
- Kunststoff (2)
- Landstraße (2)
- Langfristig (2)
- Learning (2)
- Long term (2)
- Luftverunreinigung (2)
- Medical examination (2)
- Messgerät (2)
- Methode der finite Elemente (2)
- Mobile phone (2)
- Mobiltelefon (2)
- Model (not math) (2)
- Modell (2)
- Motorisierungsgrad (2)
- Movement (2)
- Near miss (2)
- Netherlands (2)
- Niederlande (2)
- Notfall (2)
- Offence (2)
- Output (2)
- Penetration (2)
- Planning (2)
- Planung (2)
- Plastic material (2)
- Posture (2)
- Prototyp (2)
- Prototype (2)
- Public transport (2)
- Quality (2)
- Quality assurance (2)
- Qualität (2)
- Qualitätssicherung (2)
- Reaction (human) (2)
- Reaktionsverhalten (2)
- Rear (2)
- Recording (2)
- Regierung (staat) (2)
- Restraint system (2)
- Richtlinien (2)
- Risk taking (2)
- Road traffic (2)
- Rural road (2)
- Season (2)
- Shock (2)
- Side (2)
- Simulator (driving) (2)
- Soil (2)
- Sport utility vehicle (2)
- Straße (2)
- Straßenverkehr (2)
- Straßenverkehrsrecht (2)
- Störfallentdeckung (2)
- Surfacing (2)
- Surveillance (2)
- Sweden (2)
- Telefon (2)
- Telephone (2)
- Theorie (2)
- Theory (2)
- Three dimensional (2)
- Tiefe (2)
- Traffic (2)
- Traffic regulations (2)
- Traffic restraint (2)
- Trend (stat) (2)
- Turn (2)
- Unfallopfer (2)
- Vehicle ownership (2)
- Verkehr (2)
- Verkehrsbeschränkung (2)
- Weather (2)
- Weight (2)
- Wet road (2)
- Windscreen (veh) (2)
- Witterung (2)
- Zeitreihe (stat) (2)
- Öffentlicher Verkehr (2)
- Überlappung (2)
- (menschl) (1)
- Abfluss (1)
- Ability (road user) (1)
- Abkommen von der Fahrbahn (1)
- Ablenkung (1)
- Abstandsregeltempomat (1)
- Acceleration (1)
- Acceptability (1)
- Accident black spot (1)
- Accident proneness (1)
- Accident severity (1)
- Active safety (1)
- Active safety system; Automatic; Brake; Car; Collision avoidance system; Conference; Driver assistance system; Germany; Impact test (veh); Rear end collision; Severity (accid (1)
- Activity report (1)
- Adaptive cruise controll (1)
- Administration (1)
- Aged people (1)
- Aggression (psycho) (1)
- Aggression (psychol) (1)
- Air quality management (1)
- Air traffic control (1)
- Air transport (1)
- Airbag (restraint system) (1)
- Aktive Sicherheit (1)
- Alternative (1)
- Analyse (1)
- Analyses (math) (1)
- Anthropmetric dummy (1)
- Anthropometrie (1)
- Anthropometry (1)
- Antiblockiersystem (1)
- Arbeitsgruppe (1)
- Arm (human) (1)
- Arm (menschl) (1)
- Arzneimittel (1)
- Asphaltstraße (Oberbau) (1)
- Atives Sicherheitssystem (1)
- Attention (1)
- Audit (1)
- Auffharunfall (1)
- Aufmerksamkeit (1)
- Aufzeichnung (1)
- Aufzeichung (1)
- Autotür (1)
- Back (human) (1)
- Batterie (1)
- Battery (1)
- Bau (1)
- Baumusterzulassung (1)
- Baustoff (1)
- Bearing capacity (1)
- Bein [menschl] (1)
- Bepflanzung (1)
- Beschleunigung (1)
- Bevölkerung (1)
- Bewehrung (1)
- Bicyclist (1)
- Bone (1)
- Braking distance (1)
- Breaking (1)
- Bridge (1)
- Bridge management system (1)
- Bruch (mech) (1)
- Brücke (1)
- Brücken Management System (1)
- Budget (1)
- Cadaver (1)
- Calibration (1)
- Car door (1)
- Carriageway (1)
- Catalytic converter (1)
- Chassis (1)
- Chest (1)
- Clay (1)
- Cognitive impairment (1)
- Colthing (1)
- Comprehension (1)
- Compression (1)
- Computation (1)
- Concentration (chem) (1)
- Condition survey (1)
- Conference; Germany; Injury; Medical examination; Spinal column; X ray (1)
- Construction (1)
- Contact (tyre (1)
- Correlation (1)
- Critical path method (1)
- Cross roads (1)
- Cycle track (1)
- Cycling (1)
- Damping (1)
- Data processing (1)
- Data transmission (telecom) (1)
- Datenverarbeitung (1)
- Datenübertragung (Telekom) (1)
- Datenübertragung (telekom) (1)
- Dauer (1)
- Day (24 hour period) (1)
- Decke (Straße) (1)
- Decke [Straße] (1)
- Deformierte Barriere (Anpralltest) (1)
- Deicing (1)
- Demand (econ) (1)
- Demografie (1)
- Demography (1)
- Density (1)
- Deterioration (1)
- Diagnostik (1)
- Dichte (1)
- Diesel engine (1)
- Diffusion (1)
- Digital computer (1)
- Digitalrechner (1)
- Dispersion (stat) (1)
- Displacement (1)
- Distribution (gen) (1)
- Driving aid (electronic) (1)
- Driving aptitude (1)
- Driving licence (1)
- Driving license (1)
- Droge (1)
- Drugs (1)
- Dtetection (1)
- Durchsichtigkeit (1)
- Dynamic penetration test (1)
- Dämpfung (1)
- Earthworks (1)
- Echtzeit (1)
- Eichung (1)
- Eigenschaft (1)
- Ejection (1)
- Elastizitätsmodul (1)
- Electronics (1)
- Elektronik (1)
- Elektronisches Stabilitätsprogram (1)
- Emergency medical aid (1)
- Empfindlichkeit (1)
- Energie (1)
- Energy (1)
- Enforcement (law) (1)
- Enteisung (1)
- Entgleisung (Zug) (1)
- Environment (1)
- Environment protection (1)
- Erdarbeiten (1)
- Erfahrung (menschl) (1)
- Evaluation (Assessment) (1)
- Event data recorder (Road vehicle) (1)
- Expressway (1)
- Face (human) (1)
- Facility (1)
- Fahrassistenzsystem (1)
- Fahrbahn (1)
- Fahrererfahrung (1)
- Fahrerinformationen (1)
- Fahrleistung (1)
- Fahrstreifen (1)
- Fahrtauglichkeit (1)
- Fahrwerk (1)
- Fahrzeugdach (1)
- Fahrzeugflotte (1)
- Fahrzeugrückhaltesystem (1)
- Fahrzeugteil (Sicherheit) (1)
- Fatigue (human) (1)
- Fear (1)
- Fein (mater) (1)
- Feinstaub (1)
- Fence (1)
- Fernverkehrsstrasse (1)
- Financing (1)
- Finanzierung (1)
- Fine (mater) (1)
- Finland (1)
- Finnland (1)
- Fleet of vehicles (1)
- Flexible pavement (1)
- Flooding (1)
- Flugsicherung (1)
- Form (1)
- Frequency (1)
- Friction (1)
- Fuel consumption (1)
- Fuel tank (1)
- Fugenfüllung (1)
- Furcht (1)
- Fußgängerbereich (1)
- Führerschein Punktesystem (1)
- Gas (1)
- Genauigkeit (1)
- Geografisches Information System (1)
- Geographical information system (1)
- Geomembran (1)
- Geomembrane (1)
- Geometry (shape) (1)
- Geradeausverkehr (1)
- Geschwindigkeitsbeschränkung (1)
- Gesetzesdurchführung (1)
- Gesicht (1)
- Gesundheit (1)
- Greenhouse effect (1)
- Ground water (1)
- Grundwasser (1)
- Haftung (jur) (1)
- Harmonisierung (1)
- Head (human) (1)
- Health (1)
- Heavy metal (1)
- Height (1)
- Herausschleudern (1)
- Hip (human) (1)
- Homogeneity (1)
- Homogenität (1)
- Hospitsl (1)
- Häufigkeit (1)
- Höhe (1)
- Hüfte (1)
- Hüfte (menschl) (1)
- Illness (1)
- Image analysis (1)
- Image generation (1)
- Image processing (1)
- Impact (collision) (1)
- In situ (1)
- Incident management (1)
- Inertia reel safety belt (1)
- Infotainment System (1)
- Infotainment system (1)
- Installation (1)
- Intelligentes Transportsystem (1)
- Intelligentes Verkehrssystem (1)
- Interactive model (1)
- Interaktives Modell (1)
- Interface (1)
- Inventar (1)
- Inventory (1)
- Ireland (1)
- Irland (1)
- Italien (1)
- Italy (1)
- Itinerary (1)
- Kleintransporter (1)
- Knie (1)
- Knochen (1)
- Kognitive Beeinträchtigung (1)
- Kohlendioxid (1)
- Kontakt Reifen-Straße (1)
- Konzentration (1)
- Kopf (menschl) (1)
- Korea (Süd) (1)
- Korn (1)
- Kornverteilung (1)
- Korrelation [math (1)
- Korrelation(Math (1)
- Kraftfahrzeug (1)
- Kraftstofftank (1)
- Krankheit (1)
- Kreisverkehrsplatz (1)
- Kreuzung (1)
- Körperhaltung (1)
- Körperstellung (1)
- Lap strap (1)
- Lateral (1)
- Lateral collision (1)
- Layer (1)
- Lebenszyklus (1)
- Leichnam (1)
- Leistungsfähigkeit (Allg.) (1)
- Length (1)
- Lernen (1)
- Level of service (1)
- Liability (1)
- Links (1)
- Luftreinhaltung (1)
- Lufttransport (1)
- Länge (1)
- Lärm (1)
- Malaysia (1)
- Market (1)
- Markt (1)
- Massenunfall (1)
- Material (constr) (1)
- Materialveraenderung (allg) (1)
- Mathematical Model (1)
- Matrix (1)
- Mean (math) (1)
- Medication (1)
- Merging (1)
- Text (1)
- Mesurement (1)
- Mittelwert (1)
- Mobility (1)
- Mobilität (1)
- Modulus of elasticity (1)
- Montage (1)
- Moped (1)
- Motor (1)
- Multiple collision (1)
- Müdigkeit (1)
- Nachfrage (1)
- Nachricht (1)
- Nasse Strasse (1)
- Nasse Straße (1)
- Network (traffic) (1)
- Netzplantechnik (1)
- Neural network (1)
- Neuronales Netz (1)
- Nigeria (1)
- Nitric acid (1)
- Noise (1)
- Non destructive testing (1)
- Nordamerika (1)
- North America (1)
- Norway (1)
- Norwegen (1)
- Nummer (1)
- Nutzwertanalyse (1)
- Oberfläche (1)
- Official approval (1)
- Offset impact test (1)
- On the left (1)
- On the right (1)
- On the spot investigation (1)
- Organisation (1)
- Organization (association) (1)
- Overturning (1)
- Oxygen (1)
- PVC (1)
- Padding (safety) (1)
- Particle (1)
- Particle size distribution (1)
- Particulate matter (1)
- Partnerschaft (1)
- Partnership (1)
- Peat (1)
- Pedestrian precinct (1)
- Pelvis (1)
- Perception (1)
- Personal (1)
- Personnel (1)
- Pfahl (1)
- Pfosten (1)
- Pile (1)
- Point demerit system (1)
- Pole (1)
- Police (1)
- Polizei (1)
- Pollutant (1)
- Polyvinylchloride (1)
- Population (1)
- Portable (1)
- Position (1)
- Pregnancy (1)
- Preloading (soil) (1)
- Properties (1)
- Protective helmet (1)
- Provisorisch (1)
- Prüefverfahren (1)
- Pssives Sicherheitssystem (1)
- Psychological aspects (1)
- Psychologische Gesichtspunkte (1)
- QAccident (1)
- Quality management system (1)
- Qualitätsmanagementsystem (1)
- Radfahren (1)
- Radweg (1)
- Rail bound transport (1)
- Rail traffic (1)
- Rain (1)
- Rammsondierung (1)
- Real-time (1)
- Rechts (1)
- Reconstruction [accid] (1)
- Reduction (decrease) (1)
- Regen (1)
- Regional planning (1)
- Regionalplanung (1)
- Rehabilitation (1)
- Rehabilitation (road user) (1)
- Reibung (1)
- Reifen (1)
- Reifenprofil (1)
- Reinforcement (in mater) (1)
- Reiseweg (1)
- Republic of Corea (1)
- Research projekt (1)
- Residential area (1)
- Resuscitation (1)
- Reversing (veh) (1)
- Rib (1)
- Richtlinie (1)
- Risikoverhalten (1)
- Road (1)
- Road transport (1)
- Robot (1)
- Roboter (1)
- Roll over (veh) (1)
- Roof (veh) (1)
- Rotation (1)
- Roundabout (1)
- Rsk (1)
- Run off (1)
- Rupture (1)
- Röntgenstrahlung (1)
- Rücken (1)
- Rücksichtslosigkeit (1)
- Rückwärtsfahren (1)
- Safety glass (1)
- Safety harness (1)
- Safety system (1)
- Saftey (1)
- Salpetersäure (1)
- Sample (stat) (1)
- Sauerstoff (1)
- Schadstoff (1)
- Schicht (1)
- Schienentransport (1)
- Schienenverkehr (1)
- Schlag (1)
- Schleudertrauma (1)
- Schnittstelle (1)
- Schutz (1)
- Schwangerschaft (1)
- Schweiz (1)
- Schweregrad (UNfall (1)
- Schwermetall (1)
- Schätzung (1)
- Sealing compound (1)
- Seat (1)
- Seat belt (1)
- Seat harness (1)
- Sensitivity (1)
- Service life (1)
- Settlement (1)
- Setzung (1)
- Severity (accid, injuy) (1)
- Sicherheitsglas (1)
- Sicherheitspolsterung (1)
- Significance (1)
- Signifikanz (1)
- Social factors (1)
- Soziale Faktoren (1)
- Speed limit (1)
- Speed) (1)
- Spinal calum (1)
- Spreading (1)
- Sri Lanka (1)
- Stadt (1)
- Stadtplanung (1)
- Stahl (1)
- Stand der Technik (Bericht) (1)
- Standard test run (1)
- Standardabweichung (1)
- Stat) (1)
- State of the art report (1)
- Statistik (math) (1)
- Steel (1)
- Stichprobe (1)
- Stochastic process (1)
- Stochastischer Prozess (1)
- Stopping distance (1)
- Straight ahead (traffic) (1)
- Strasse (1)
- Straßentransport (1)
- Stress (psychol) (1)
- Störfallmanagement (1)
- Subsoil (1)
- Surface (1)
- Switzerland (1)
- Systemanalyse (1)
- Systems analysis (1)
- Tag (24 Stunden) (1)
- Technische Vorschriften (1)
- Temporary (1)
- Tension (1)
- Test procedure (1)
- Thailand (1)
- Ton (Gestein) (1)
- Torf (1)
- Town planning (1)
- Toxicity (1)
- Toxizität (1)
- Traffic lane (1)
- Tragbar (1)
- Tragfähigkeit (1)
- Transparent (1)
- Transport mode (1)
- Transport operator (1)
- Transportunternehmen (1)
- Traveler (1)
- Treibhauseffekt (1)
- Two dimensional (1)
- Tyre (1)
- Tyre tread (1)
- Tätigkeitsbericht (1)
- Umwelt (1)
- Umweltschutz (1)
- Underride prevention (1)
- Unfallfolgephase (1)
- Unfallneigung (1)
- Unfallrate (1)
- Unfallrekonsruktion (1)
- Unfallschwerpunkt (1)
- Unfallverhütug (1)
- Ungeschützter Verkehrsteilnehmer (1)
- United Kindom (1)
- Unterfahrschutz (1)
- Untergrund (1)
- Untersuchung am Umfallort (1)
- Urban area (1)
- Usa (1)
- Value analysis (1)
- Variance analysis (1)
- Varianzanalyse (1)
- Vegetation (1)
- Vehicle mile (1)
- Vehicle restraint system (1)
- Vehicle safety device (1)
- Veletzung) (1)
- Vereinigtes Königreichl (1)
- Verfahen (1)
- Verfahren ; Verkehrsinfrastruktur (1)
- Verkehrsmittel (1)
- Verkehrsnetz (1)
- Verkehrsqualität (1)
- Verkehrsverflechtung (1)
- Vermeidung (1)
- Verständnis (1)
- Verteilung (allg) (1)
- Verteilung (mater) (1)
- Verwaltung (1)
- Virtual reality (1)
- Virtuelle Realität (1)
- Visualisation (1)
- Visualisierung (1)
- Vorbelastung (Boden) (1)
- Vulnerable road user (1)
- Wahrnehmung (1)
- Wasser (1)
- Water (1)
- Whiplash injury (1)
- Window (veh) (1)
- Wirkungsanalyse (1)
- Wohngebiet (1)
- Women (1)
- Working group (1)
- Zahl (1)
- Zerstörungsfreie Prüfung (1)
- Zug (mech) (1)
- Zusammendrückung (1)
- Zusammenstoss (1)
- Zustandsbewertung (1)
- Zweidimensional (1)
- accident (1)
- aktives Sicherheitssystem (1)
- analyses (math) (1)
- ar (1)
- efficiency (1)
- fatality (1)
- finite element method (1)
- head (1)
- road) (1)
- simulation (1)
- stat] (1)
- tödlicher Unfall (1)
- Überdeckung (1)
- Überschwemmung (1)
Institut
- Sonstige (337) (entfernen)
This paper describes the methodology of In-Depth Investigation in Germany on the example of GIDAS (German In-Depth Accident Study). Since 1999 in Germany a joint project between FAT (Forschungsvereinigung Automobiltechnik or Automotive Industry Research Association) and BASt (Bundesanstalt für Straßenwesen or the Federal Road Research Institute) is being carried out in Hannover and Dresden. The methodology of this project is based on a statistically orientated procedure of data sampling (sampling plan, weighting factors). The paper describes the possibilities of such in-depth investigation on the results of the offered title. The accident cases were collected randomly within GIDAS at Hannover. There are more cases existing from previous investigation started in 1985 under the same methodology. The portion of rollovers can be established at 3.7% of all accidents with casualties in the year 2000. For the study 434 cases of car accidents with rollovers are used for a detail comprehensive analysis. The accidents happened in the years 1994 to 2000 in the Hannover area. The injury distribution will report about 741 occupants with rollover accident event. The presented paper will give an overview of the accident situations following in rollover movements of cars. The distributions of injury frequencies, injury severity AIS for the whole body and for the body regions of occupants will be presented and compared to technical details like the impact speed and the deformation pattern. The speed of the car was determined at the point of rollover and on the point of accident initiency. The characteristics of the kinematics followed in a rollover movement are analyzed and the major defined types of rollover will be shown in the paper. The paper will describe the possibilities of In-Depth Investigation methods for the approach of finding countermeasures on the example of car accidents with rollover and explaining the biomechanics of injuries in rollover movements.
A means of assessing the passive safety of automobiles is a desirable instrument for legislative bodies, the automobile industry, and the consumer. As opposed to the dominating motor vehicle assessment criteria, such as engine power, spaciousness, aerodynamics and consumption, there are no clear and generally accepted criteria for assessing the passive safety of cars. The proposed method of assessment combines the results of experimental safety tests, carried out according to existing legally prescribed or currently discussed testing conditions, and a biomechanical validation of the loading values determined in the test. This evaluation is carried out with the aid of risk functions which are specified for individual parts of the body by correlating the results of accident analysis with those obtained by computer simulation. The degree of conformance to the respective protection criterion thus deduced is then weighted with factors which take into account the frequency of occurrence and the severity of the accident on the basis of resulting costs. Each of the test series includes at least two frontal and one lateral crash test against a deformable barrier. The computer-aided analysis and evaluation of the simulation results enables a vehicle-specific overall safety index as well as partial and individual safety values to be determined and plotted graphically. The passive safety provided by the respective vehicle under test can be defined for specific seating positions, special types of accident, or for individual endangered parts of the body.
Annually within the European Union, there are over 50,000 road accident fatalities and 2 million other casualties, of which the majority are either the occupants of cars or other road users in collision with a car. The European Commission now has competency for vehicle-based injury countermeasures through the Whole Vehicle Type Approval system. As a result, the Commission has recognised that casualty reduction strategies must be based on a full understanding of the real-world need under European conditions and that the effectiveness of vehicle countermeasures must be properly evaluated. The PENDANT study commenced in January 2003 in order to explore the possibility of developing a co-ordinated set of targeted, in-depth crash data resources to support European Union vehicle and road safety policy. Three main work activity areas (Work Packages) commenced to provide these resources. This paper describes some of the outcomes of Work Package 2 (WP2, In-depth Crash Investigations and Data Analysis). In WP2, some 1,100 investigations of crashes involving injured car occupants were conducted in eight EU countries to a common protocol based on that developed in the STAIRS programme. This paper describes the purposes, methodology and results of WP2. It is expected that the results will be used as a co-ordinated system to inform European vehicle safety policy in a systematic, integrated manner. Furthermore, the results of the data analyses will be exploited further to provide new directions to develop injury countermeasures and regulations.
This report gives an overview of pedestrian accidents on Japanese roads. Database used for the analysis is national traffic accident data based on police reports. Relevant measures and background information ranging from vehicle safety, engineering and education are briefly reviewed, and area for further improvement is discussed.rn
Pedestrian accidents are one of the major concerns related with road accidents around the world. Portugal has one of the highest rates of pedestrian fatalities in Europe. In this paper an overview conditions were the pedestrian accidents occurred in Portugal is presented. In the last years, a project related with the pedestrian accidents has run in Portugal for the period 2004-2006 where 603 people died, 2097 have been severely injured and about 17000 slightly injured. Within this project all the pedestrian accidents in this period have been analysed providing global information about a wide range of aspects, since location, driver and pedestrian characteristics, weather and road conditions, among others. In addition, 50 in-depth accidents have been investigated and the data collected according the Pendant methodology. For this in-depth methodology detailed information about the accident has been collected, including injuries, vehicle damage, road conditions and road user- behaviour and actions. An accident reconstruction has been carried for each case including the determination of the speeds and driver actions, and the analysis of the contributing factors for the accident. Depending of the accident complexity, different methodologies have been used to analyse these accident, from the classical analytical equations such as Simms and Woods, to the use of detailed computational pedestrian models as those included in the commercial software- PC-Crash-® or Madymo-®. Also one of the goals of our investigation is the development of multibody models and methodologies for the reconstruction of pedestrian accidents. Some of these tools integrated in the commercial software Cosmos Motion-® are presented. The advantages of the different approaches are compared and discussed for some of the accidents investigated. With these tools the impact speed can be determined from the projection distance with analytical tools or PC-Crash-®, but more complex tools should be used to determine speed from the injuries, what is especially important for fatal accidents. The influence of the vehicle geometry and stiffness characteristics is another aspect analysed, where the influence of the vehicle stiffness has been determined using a combined multibody-finite elements approach within the software Madymo-®.
Within the overall system of novice driver preparation, the practical driving test plays an especially important role for the objective of improved driving safety: On the one hand, the test contents, assessment criteria and test results provide important orientation for the organisation of driving school training and the individual learning processes of the novice drivers (control function); on the other hand, the practical test serves to ensure that only novice drivers with adequate driving competence are entitled to participate in motorised road traffic (selection function). The aim of the present project is to elaborate a scientifically founded model for a future, optimised practical driving test, together with a contextual and methodical (implementation) concept for its continuous maintenance, quality assurance and further development. In addition, the institutional structures of the test system, test methods and test procedures - including the necessary demand, assessment, documentation and evaluation standards - are to be described in a "System Manual on Driver Licensing (Practical Test)". As a first step, selected psychology-based driving competence models and the contents of training and test documents are to be analysed. The results of this analysis will then serve as the starting point for a discussion of possibilities to model and measure driving competence, and for the outlining of a driving competence model for the theoretical determination of appropriate test content. Subsequently, demand standards for an optimised practical driving test can be derived by applying action theory principles to the demands of motor vehicle handling, and thereby defined as minimum personal standards for driving test candidates. This elaboration is to take into account not only latest knowledge from the fields of traffic and test psychology, but also relevant stipulations in licensing regulations, international trends in the further development of test standards, and novice-specific accident causes and competence deficits. A further outcome of the project - alongside theoretical-methodical foundations for optimisation of the practical driving test and for the draft of a system manual - is to be a "Catalogue of driving tasks (Category B)", in which the demand standards for the practical driving test are described in the form of situation-related driving tasks and situation-independent observation categories, as a means to specify the criteria for event-oriented performance assessment and overall competence evaluation. At the same time, criteria for the examiner's test decision are to be defined. This optimisation work will contribute, finally, to further development of the adaptive control strategy for the practical driving test. To enable implementation of the further developed demand, assessment and documentation standards of an optimised practical driving test, a contextual and methodical concept for an electronic test report is to be presented, together with an ergonomically founded design proposal for both hardware and software. The computer-assisted documentation of test performance is intended to support the driving test examiner in planning of the course of a driving test and assessment of the candidate's driving behaviour. Furthermore, optimisation of the performance feedback to candidates and improved possibilities for scientific evaluation of the optimised practical driving test are expected. With regard to test evaluation, a fundamental model is to be described, which - alongside monitoring of the psychometric quality criteria within the framework of an instrumental evaluation - incorporates an evaluation of test results, product audits and the responses to candidate and driving instructor surveys. Finally, the possible influence of driver assistance and accident avoidance systems on the realisation of a driving test and on the assessment of test performance is to be discussed.
An analysis of NASS and FARS was conducted to determine crash conditions that involved injuries that are not currently being directly addressed by vehicle safety standards or by consumer information test protocols. Analysis of both field data and US NCAP tests were conducted to determine the relative safety provided by seating position and by vehicle model year. Opportunities for improvements were determined by crash categories with large populations of injuries that were not addressed by safety tests or smaller numbers that were increasing in frequency. Areas of opportunities include improved occupant restrain in rollovers, improved frontal protection for rear seat occupants and improved fire prevention in frontal and rollover crashes.
This paper set out to examine the possibilities for injury avoidance implications for older drivers in crashes, based on crash and injury patterns among older drivers and current trends in ageing in most western societies. A number of safety technologies were identified and discussed which have potential for improving vehicle older driver crash avoidance and crashworthiness. While there were some promising estimates available of the likely benefits of this technology for improving safety, it is evident that they need to be confirmed for older drivers, given their age-related disabilities and sensory limitations. Further research is urgently required to ensure that these technologies yield safety benefits without any disbenefits for older drivers.rn
From an automotive safety occupant protection standpoint, effective occupant restraint requires a system capable of providing non-injurious occupant ride down of anticipated crash forces. This is not only the case for frontal collisions, where occupant restraint is provided primarily by seatbelts and airbags, but is also critical for other crash modes such as side impacts, rear impacts, rollovers, as well as multiple impact events. In the rear impact crash mode, occupant restraint is provided primarily by the seatbacks and to some extent the seatbelts. Foundationally, therefore, what becomes fundamental to the seatback's role in rear occupant protection is its ability to contain the occupant within the seat, preventing occupant ramping, as well as preventing the seat's, and/or its occupant's, dangerous intrusion into the rear occupant's survival space where contact with rear compartment components and/ or rear seated occupants can present a significant injury risk. An analysis is presented of a series of rear impact sled testing conducted by the authors that evaluates the timing, position and extent of the front seatback's reward displacement toward and into the rear occupant compartment as well as consideration of the front seat occupant' ramping potential and its injury potential relative to the rear compartment. Additionally, three other series of testing are presented which assess various seat designs occupant retention capabilities. Lastly, a matched-pair comparison test series is presented which evaluates occupant motion in rear impact with and without use of a typical vehicle body mounted 3-point seatbelt. Discussion of restraint system performance observed in all the testing is included along with ATD biofidelity and thigh-gap considerations. The data collected and presented includes accelerometer instrumentation and high speed video analysis.
The Swedish "Vision Zero" regards road fatalities and severe injuries as unacceptable. The vision is based on this ethical perspective together with a fundament of shared responsibility between the system designers and the road user. The design of the traffic system shall protect the road user from these effects as long as he or she follows the traffic rules. It should be possible to make a mistake without being killed. This policy has, during the first period of the "vision zero" (since 1997) put high priority on road and car design where the purpose has been to develop a forgiving environment. Gradually it has, however, become clear that much more effort has to be focused on the responsibility of the road user. Protecting measures will have limited effect as long as the understanding and acceptance from road users is limited. During the last years, Sweden has gone through several improvements of the driver education and is in the middle of important improvements of road safety education for children in schools. Several EU-projects has contributed to this development. One aspect that has received large international interest is the lay instructed driver training from 16 years of age supervised by parents. This has been in use since 1993. Another is the development of mandatory courses, such as an introduction for the learner and the lay instructor, a "risk awareness" courses dealing specifically with speeding, seat belt use, drunk driving, tiredness, and driving on low friction. The presentation will share some of the "vision zero" fundaments together with the latest experiences, research and development concerning driver education in Sweden.
Learner drivers are readied for their participation in motorised transport within the framework of specific, internationally-diverse preparation systems. These systems are historically developed and are characterised by country-specific economic, infrastructural, legal and cultural circumstances. With the aid of functionally-distinguishable teaching and learning methods as well as testing methods, a conceptual framework was created whilst drawing upon research-methodological approaches of comparative political science as well as teaching and learning principles that facilitated a description and analysis of the systems for a comparative observation to be performed. The systems for the preparation of learner drivers in 44 countries are illustrated in the report. The descriptions are based upon surveys of experts from various institutions (ministries of transport, driving instructor associations, testing organisations) as well as upon literary and Internet research. Alongside European countries with a traditional formal driver training, \"Graduated Driver Licensing\" systems that are primarily encountered in English-speaking countries were also taken into account when selecting the countries. They are characterised by the guarantee of gaining comprehensive driving experience under reduced risk conditions in the form of supervised driving prior to the start of independent driving as well as protective special rules for learner drivers whilst gaining further driving experience during the initial phase of independent driving. The results enable a detailed insight into the country-specific structure of learner driver preparation with the components of the formal driver training in driving schools, informal teaching and learning methods such as supervised driving, the driving tests that must be successfully completed as well as legal frameworks and quality assurance measures. The functionality of system components and architectures shall be discussed against the backdrop of evaluation findings regarding the effectiveness in terms of safety.
PROSPECT (Proactive Safety for Pedestrians and Cyclists) is a collaborative research project involving most of the relevant partners from the automotive industry (including important active safety vehicle manufacturers and tier-1 suppliers) as well as academia and independent test labs, funded by the European Commission in the Horizon 2020 research program. PROSPECT's primary goal is the development of novel active safety functions, to be finally demonstrated to the public in three prototype vehicles. A sound benefit assessment of the prototype vehicle's functionality requires a broad testing methodology which goes beyond what has currently been used. Since PROSPECT functions are developed to prevent accidents in intersections, a key aspect of the test methodology is the reproduction of natural driving styles on the test track with driving robots. For this task, data from a real driving study with subjects in a suburb of Munich, Germany was used. Further data from Barcelona will be available soon. The data suggests that intersection crossing can be broken down into five phases, two phases with straight deceleration / acceleration, one phase with constant radius and speed turning, and two phases where the bend is imitated or ended. In these latter phases, drivers mostly combine lateral and longitudinal accelerations and drive what is called a clothoid, a curve with curvature proportional to distance travelled, in order to change lateral acceleration smoothly rather than abrupt. The data suggests that the main parameter of the clothoid, the ratio distance travelled to curvature, is mostly constant during the intersections. This parameter together with decelerations and speeds allows the generation of synthetic robot program files for a reproduction of natural driving styles using robots, allowing a much greater reproducibility than what is possible with human test drivers. First tests show that in principle it is possible to use the driving robots for vehicle control in that manner; a challenge currently is the control performance of the robot system in terms of speed control, but it is anticipated that this problem will be solved soon. Further elements of the PROSPECT test methodology are a standard intersection marking to be implemented on the test track which allows the efficient testing of all PROSPECT test cases, standard mobile and light obstruction elements for quick reproduction of obstructions of view, and a concept for tests in realistic surroundings. First tests using the PROSPECT test methodology will be conducted over the summer 2017, and final tests of the prototype vehicles developed within PROSPECT will be conducted in early 2018
The head impact of pedestrians in the windscreen area shows a high relevance in real-world accidents. Nevertheless, there are neither biomechanical limits nor elaborated testing procedures available. Furthermore, the development of deployable protection systems like pop-up bonnets or external airbags has made faster progress than the corresponding testing methods. New requirements which are currently not considered are taken into account within a research project of BASt and the EC funded APROSYS (Advanced PROtection SYStems) integrated project relating to passive pedestrian protection. Testing procedures for head impact in the windscreen area should address these new boundary conditions. The presented modular procedure combines the advantages of virtual testing, including full-scale multi-body and finite element simulations, as well as hardware testing containing impactor tests based on the existing procedures of EEVC WG 17. To meet the efforts of harmonization in legislation, it refers to the Global Technical Regulation of UNECE (GTR No. 9). The basis for this combined hardware and virtual testing procedure is a robust categorization covering all passenger cars and light commercial vehicles and defining the testing zone including the related kinematics. The virtual testing part supports also the choice of the impact points for the hardware test and determines head impact timing for testing deployable systems. The assessment of the neck rotation angle and sharp edge contact in the rear gap of pop-up bonnets is included. For the demonstration of this procedure, a hardware sedan shaped vehicle was modified by integrating an airbag system. In addition, tests with the Honda Polar-II Dummy were performed for an evaluation of the new testing procedure. Comparing these results, it was concluded that a combination of simulation and updated subsystem tests forms an important step towards enhanced future pedestrian safety systems considering the windscreen area and the deployable systems.
NASS: the glass is half full
(2007)
The National Accident Sampling System (NASS) was born in the late 1970s. It was based on a substantial amount of experience and analysis of what was needed in the United States to understand the safety challenges of our highways. This work also showed how to collect high quality and useful crash data efficiently. Unfortunately, when Ronald Reagan - a President who believed in limited government - was elected, any hope of full funding for NASS was lost. The concept of 75 teams investigating about 18,000 serious crashes in detail annually was never realized. The system got up to 50 teams, then was cut to 36, and finally to 24 teams investigating fewer than a quarter of the originally anticipated number of crashes per year. Despite this, the NASS investigations provide a rich source of data, collected according to a sophisticated statistical sampling system to facilitate detailed national estimates of road casualties on our nation- highways and their causes. In addition, changes have been made in recent years to increase the number of more serious crashes of recent model vehicles to make the results more relevant to improving vehicle safety. A recent, detailed examination of hundreds of rollovers has provided considerable insight into rollover casualties and into what can be done to reduce them. Some of these results will be presented that show the value of the NASS system. Our experience with NASS and the Fatal Accident Reporting System (FARS) suggests a number of improvements that could be made in the United States" crash data systems. It also provides justification for a doubling or tripling of our national expenditures on crash data collection.
Over the last decades the number of traffic accident fatalities on German roads decreased by 77% down to 4968 in the year 2007. This positive development is due to optimisations of vehicle safety, roads and infrastructure and medical rescue issues. Up to now mostly the optimisations of secondary safety measures lead to this effect on vehicle safety. Since some years more and more driver assistance systems are available and lead to a further reduction of all accidents. These new systems are often comfort systems and have not primarily been developed to increase vehicle safety. In contrast to secondary safety systems primary safety systems are able to mitigate and avoid accidents. So in the future it is important to estimate the benefit of these systems in reducing accident numbers as well. Current benefit estimation methods mostly focus on a single system only and not on the combination of systems. In this paper a new method for a multivariate benefit estimation based on real accident data is developed. The paper describes the basic method to estimate the benefit of primary and secondary safety systems in combination. With the presented method the benefit will not be overestimated as it would be by a simple addition of the benefits of single systems. The model will be validated by a multivariate prospective benefit estimation of different vehicle safety systems in comparison to single benefit estimations of the same systems. For this the German In-Depth Accident Database is used. The results show the importance to implement the interactions of safety systems in the estimation process and rate the overestimation by a simple addition of the single system benefits. The validation includes primary and secondary safety systems in combination. The validation is done using more than 3500 real accidents which were initiated by cars. This sample out of the GIDAS database is representative for the current accident situation in Germany. The paper shows the necessity of a multivariate estimation of the benefit for existing and future safety systems.
While it is important to track trends in the number of road accidents in different countries using national statistics, there is a need for data with more detailed information, so called in-depth accident data. For this reason, several accident data projects emerged worldwide in recent years. However, also different data standards were established and so comparative analysis of international in-depth data has been very hard to conduct, so far. This is why the project iGLAD (Initiative for the Global Harmonization of Accident Data) was established and created the prerequisites for building up a standardized dataset out of the common denominator of different in-depth accident databases from Europe, USA and Asia. In the first phase, the project received funding from ACEA to compile an initial database. To accomplish this, a suitable data scheme has been defined, a pilot study has been conducted as proof of concept and the recoding of the first common data base has been initiated. Also, to prepare the project for its self-supporting continuation in the next years, a business model has been developed. This paper reports the history and status of the project, the current challenges and the creation of a capable consortium to maintain the data. In mid-2014, the initial database containing 1550 cases from 10 different countries will be completed and a first detailed view on this data will be possible.
Empirical vehicle crashworthiness studies are usually based on national or in-depth traffic accident surveys: Data on accident-involved cars/drivers are analysed in order to quantify the chance of driver injury and to assess certain risk factors like car make and model. As the cars/drivers involved in the same accident form a "cluster", where the size of the cluster equals the number of accident-involved parties, traffic accident survey data are typical multi-level data with accidents as first-level or primary and cars/drivers as secondlevel or secondary units (car occupants in general are to be considered as third level units). Consequently, appropriate statistical multi-level models are to be used for driver injury risk estimation purposes as these models properly account for the cluster structure of traffic accident survey data. In recent years various types of regression models for clustered data have been developed in the statistical sciences. This paper presents multi-level statistical models, which are generally applicable for vehicle crashworthiness assessment in the sense that data on single and multiple car crashes can be analysed simultaneously. As a special case of multi-level modelling driver injury risk estimation based on paired-by-collision car/driver data is considered. It is demonstrated that assessment results may be seriously biased, if the cluster structure inherent in traffic accident survey data is erroneously ignored in the data analysis stage.
Powered Two Wheeler (Motorcycle) crashes are overrepresented in EU, England, and United States casualty statistics for both fatal and serious injuries. While regional geographic differences are evident for motorcycle size, type, and engine displacement, the casualty statistics consistently indicate significantly higher injury rates for all motorcycle riders when compared to car occupants. Accident analysis and reconstruction of these motorcycle crashes is a necessary process to gain further understanding of potential injury mitigation strategies. This paper focuses on the analysis of the rider post impact trajectory in the immediate moments following a crash. The rider and motorcycle, while loosely coupled by seating position leading up to a crash, quickly decouple as the crash forces develop. As a result, the rider moves relative to the motorcycle and relative to the collision partner. This movement, or trajectory, is primarily influenced by the type and configuration of the impact, the type and configuration of the motorcycle and collision partner, and the speeds involved. Understanding the rider's post impact trajectory will assist in the development of injury mitigation strategies. Both the free flight trajectory of the rider and the rider's trajectory as influenced by interaction with the motorcycle and collision partner are examined. Rider trajectories in full scale crash testing and real world motorcycle crashes are both studied and presented. The resulting physical evidence that can be observed by an accident analyst is discussed. The application of projectile motion physics is analyzed and the necessary input parameters, such as initial launch angle, are studied. This study will assist in understanding the post-impact dynamics of a motorcyclist, and will provide useful information to analysts evaluating real world crashes.
Motorcycle safety research
(2007)
Honda- global motorcycle sales exceeded the 10 million units mark since 2004, and further expansion is expected. As a responsibility for a company to provide mobility, Honda is focusing on motorcycle safety as top priority and has been working on various activities for both aspects of hardware and software. Here, we present Honda- activity for the safety technology of motorcycles. At present, Honda is promoting motorcycle safety in the four themes of prevention and collision safety such as safety education, recognition assistance, accident prevention and injury reduction. First, in the area of the safety education, the "Honda Safety Driving Promotion Center" was established in 1970, and motorcycle riders and vehicle driver trainings have been organized, and the traffic training centers are used as an actual practice field not only in Japan but also in many other regions in the world. Through our training activities, the new area of safety training with hardware assistance was developed and Honda- unique technology was accumulated such as the riding simulator which can provide experience of potentially dangerous situations without risk. Especially, the "riding trainer", the popular version of the riding simulator, was introduced at several motor shows in various countries and launched in September 2005. It was distributed first in Europe and is expected to expand globally aiming at 3000 units worldwide.. And in Europe, the newest version, which includes the suburban roads program, jointly developed with ADAC, will be released in near future. In the area of recognition assistance, "vehicle to vehicle communication technology" is under development using the advantage of being a manufacturer of both motorcycles and cars. This technology is under research as Honda "ASV-3" in Japan, and as part of C2C activity in Europe. As for the accident prevention, advanced brake systems for motorcycles to assist more effective brake operation have been expanded, Honda signed the European Road Safety Charter in April 2004 with the advanced brake systems commitment and furthermore, they are expanding according to vehicle characteristics and region. Then all models above 250 cc will have a version of the system by 2010. And as the last theme, "motorcycle airbag system" is introduced which is equipped on a mass production motorcycle for the first time in the world. It has been researched and developed for a long time as an injury reduction technology for collision accidents. Honda automobile technology was used for the research and development of the motorcycle airbag, and many specific issues such as the analysis of the collision conditions particular to motorcycles have been solved to realize today- success. It might be known that ADAC in-house crash test held in August this year confirmed the high effectiveness of the airbag system and showed a positive result. This motorcycle airbag system is equipped to the Honda Gold Wing and launched in North America in August, 2006. Also in Europe, it will be sold by the end of this year. Each theme of Honda motorcycle safety technology can be seen at the Honda booth.
Motorcycle crashes in Austria: Analysis of causes and contributing factors based on in-depth data
(2017)
From CEDATU, the in-depth accident database run by the Vehicle Safety Institute at Graz University of Technology, a representative sample of 101 crashes involving at least one motorcycle was selected. The analysis focused on causes for crashes as well as on contributing factors, but also included parameters of road, riders and vehicles. Own riding speed and "unexpectable action by another road user" were the most frequent causes for accidents. Inappropriate safety distance or delayed reaction were frequent, both as causation factors and as contributing factors. Infrastructure issues never cause an accident, but they are very frequent as contributing factors; road geometry and road guidance are by far most frequent among these. This paper also discusses accidents by type and other parameters (e.g. injury severity by body region, collision speed, age and others), and compares accident causes to previous studies as well as the police reported accident statistics.
While the number of fatal accidents is diminishing every year, there is still a need of improvement and action to prevent these deaths. Basis for this purpose has to be an analysis about the factors influencing the car crash mortality. There are various studies describing the univariate influence of several factors, but crash scenarios are too complex to be described by a single variable. The multivariate analysis respects the interference of the variables and gets so to more detailed and representative results. This multivariate analysis is based on about 2,600 cases (the data have been collected by the accident research units Hannover and Dresden (during the years 1999-2003). This paper presents a multivariate model (containing ten different variables) which detects 93% of these cases properly. This means it detects the cases as truly survived and truly death.
Within the process of integrating passenger airbags in the vehicle fleet a problem of compatibility between the passenger airbag and rear-facing child restraint systems was recognised. Especially in the US several accidents with children killed by the passenger airbag were recorded. Taking into account these accidents the deactivation of a present passenger airbag is mandatory if a child is carried in a rear-facing child restraint system at the front passenger seat in all member states of the European Union. This rule is in force since the deadline of 2003/20/EC at the latest. In the past a passenger airbag either could not be disabled or could only be disabled by a garage. Today there are a lot of different possibilities for the car driver himself to disable the airbag. Solutions like an on/off-switch or the automatic detection of a child restraint system are mentioned as an example. Taking into account the need for the deactivation of front passenger airbags two types of misuse can occur: transportation of an infant while the airbag is (still) enabled and transportation of an adult, while the airbag is disabled, respectively. Within a research project funded by BASt both options of misuse were analysed utilising two different types of surveys amongst users (field observations and interviews, Internet-questionnaires). In addition both analysis of accident data and crash tests for an updated assessment of the injury risk caused by the front passenger airbag were conducted. Both surveys indicate a low risk of misuse. Most of the misuse cases were observed in older cars, which offer no easy way to disable the airbag. For systems, which detect a child seat automatically, no misuse could be found. The majority of misuses in cars equipped with a manual switch were caused by reasons of oblivion. Also the accident analysis indicates a minor risk of misuse. From more than 300 cases of the GIDAS accident sample that were analysed, only 24 children were using the front passenger seat in cars equipped with a front passenger airbag. In most of these cases the airbag was deactivated. When misuse occurred the injury severity was low. However, when analysing German single accidents the fatality risk caused by the front passenger airbag became obvious. From the technical point of view, there were important changes in the design of passenger airbags in recent years. Not only volume and shape were modified, but also the mounting position of the entire airbag module was changed fundamentally. Even if these findings do not allow obtaining general conclusions, a clear tendency of less danger by airbags could be identified. For future vehicle development a safe combination of airbags and rear faced baby seats seems to be possible in the long term. This would mean that both types of misuse could be eliminated. For parents an easier use of child seat and car would be the result.
Having a look at safety to traffic and the prevention of accidents it can be observed that technical improvements in active safety of vehicles have let to various positive effects in this area. Among other components the tyre-road-contact takes a key role in the development of active safety technologies. All forces in accelerating, breaking and vehicle guidance have to be transmitted through the tyre-road contact area by friction forces. A common way to characterize a friction process is to identify the coefficient of friction μ between two touching materials. Even though there are several approaches to experimentially characterise road surfaces, no standard method exists. In this paper an overview of existing test methods is given. Furthermore the preliminary design of a newly developed portable test device with its possibility to investigate the tyre-road-friction of arbitrary roads or even places of accidents is shown.
Methods for analyzing the efficiency of primary safety measures based on real life accident data
(2009)
Primary safety measures are designed to help to avoid accidents or, if this is not possible, to stabilize respectively reduce the dynamics of the vehicle to such an extent that the secondary safety measures are able to act as good as possible. The efficiency of a primary safety measure is a criterion for the effectiveness, with which a system of primary safety succeeds in avoiding or mitigation the severity of accidents within its range of operation and in interactionwith driver and vehicle. Based on Daimler-´s philosophy of the "Real Life Safety" the reflection of the real world accidents in the systems range of operation is both starting point as well as benchmark for its optimization. This paper deals with the methodology to perform assessments of statistical representative efficiency of primary safety measures. To be able to carry out an investigation concerning the efficiency of a primary safety measure in a transparent and comparable way basic definitions and systematics were introduced. Based on these definitions different systematic methods for estimating efficiency were discussed and related to each other. The paper is completed by presenting an example for estimating the efficiency of actual "single" and "multi" connected primary safety systems.
In the project SECMAN " SECurity MANual " a simple four-step procedure for the identification of critical road infrastructures, assessment of these infrastructures regarding various man-made threats and the determination of effective protection measures was developed. These methodologies are summarized and combined into a comprehensive best-practice manual which allows for a trans-national structured and holistic security-risk-management approach for owners and operators of road infrastructures in Europe. This paper presents the developed methodology starting from the assessment procedures of a network's criticality over an object's attractiveness and vulnerability to the selection process of appropriate protection measures.
This study that was funded by the Research Association for Automotive Technology (FAT) develops a method for the evaluation of the placement of tanks or batteries by using the deformation frequencies in real-world accidents. Therefore, the deformations of more than 20.000 passenger cars in the GIDAS database are analysed. For each vehicle a contour of deformation is calculated and the deformed areas of the vehicles are transferred in a rangy matrix of deformation. Thereby, the vehicle is divided into more than 190.000 cells. Afterwards, all single matrices of deformation are summarized for each cell which allows representative analyses of the deformation frequencies of accidents with passenger cars in Germany. On the basis of these deformation frequencies it is possible to determine least deformed areas of all passenger cars. Furthermore, intended placements of tanks or batteries can be estimated in an early stage of development. Therefore, all vehicles with deformations in the intended tank areas can be analysed individually. Considering numerous parameters out of the GIDAS database (e.g. collision speed, kind of accident, overlap, collision partner etc.) the occurring forces can be calculated or the deformation frequency can be estimated. Furthermore, it is possible to consider the influence of primary and secondary safety systems on the deformation behaviour. The analysis of "worst case accident events" is an additional application of the calculated matrix of deformation frequency.
Internationally, the need is expressed for harmonized traffic accident data collection (PSN, PENDANT, etc.). Together with this effort of harmonization, traffic accident investigation moves more and more in the direction of accident causation. As current methods only partly address these needs, a new method was set up. The main characteristics of this method are: • Accident/injury causation (associated) factors can objectively be identified and quantified, by comparison with exposure information from a normal population. • All relevant accident and exposure data can be included: human-, vehicle-, and environmental related data for the pre-crash, crash and postcrash situation (the so-called Haddon matrix). The level of detail can be chosen depending on interest and/or budget, which makes the method very flexible. In this paper the accident collection and control group method are presented, including some of the achieved results from a pilot study on 30 truck accidents and 30 control locations. The data were analyzed by using cross-tabulations and classification-tree analysis. The method proved useful for the identification of statistically significant causational aspects.
Supervision of the safety performance in public transport is one of the main tasks of the Federal Office of Transport (FOT) in Switzerland. Recently a three level system of safety indicators has been defined to cover all means of Swiss public transport. The safety indicators are fed by the FOT incident database since the year 2000. In cooperation with the Institute for Traffic Safety and Automation Engineering (iVA) at TU Braunschweig, Germany, FOT is developing a suitable methodology for the definition and evaluation of the safety targets in Swiss public transport. The methodology is applied for evaluation of safety indicators on a country level and for single transport companies. In a new approach the abovementioned methodology is applied to car incident data to develop an indicator based cross-modal safety measure.
The grip between the road surface and vehicle tires is the physical basis for the moving of all vehicles in road traffic. In case of an accident the available grip level is one of the most relevant influence factors, influencing the causation and the procedure of the accident. However, the estimation of the grip level is not easy and therefore, is commonly not done on the accident scene. This is especially true for the measurement of the water depth. Until now, real accident databases provide no measurement data about the grip level and the water film depth and thus, the estimation of its influence is not possible yet. From the tyre manufacturers point of view, it is important to know about the road conditions (namely grip level, macro-texture, water depth, temperature) at the accident scene, as well as the operating conditions of the vehicles (braking, loss of control, speed, etc). These data is necessary to define relevant tyre traction tests for the end-user and for regulations. For this reason VUFO and Michelin developed a consistent method for the measurements of grip level and water depth for the accidents of the GIDAS database. The accident research team of Dresden, which documents about 1000 accidents with at least one injured person every year, is measuring the micro-roughness and the macro-roughness directly on the spot. For the measurement of the micro-roughness a Skid Resistance Tester (British Pendulum) is used. The Mean Texture Depth (describing the macro-roughness) is measured by the Sand Depth Method. Since June 2009, measurements for more than 700 accidents including 1200 participants have been carried out. In case of wet or damp road conditions during the accident, the water depth is measured additionally. Therefore VUFO and Michelin developed a special measurement device, which allows measurements with an accuracy of 1/10 millimetre. The measurement point at the accident scene is clearly defined and thus, the results are comparable for all different accidents and participants. The use of the GIDAS database and the accident sampling plan allows representative statements for the German accident scenario. With this data it is possible for the first time to have an accurate view of the road conditions at the accident scene. One possibility is a more detailed estimation of hydroplaning accidents using the actually measured water depths. The development of new testing methods and new tires can be based on the real situation of the road infrastructure. Furthermore, the combination of the technical GIDAS data and the measured road surface properties can also be used for the estimation of effectiveness of several safety systems like the brake assist and/or emergency braking systems. The calculation of a reduced collision speed due to the use of a brake assist is only one example for the application of real measured grip level data.
When assessing the consequences of accidents normally the injury severity and the damage costs are considered. The injury severity is either expressed within the police categories (slight injury, severe injury or fatal injury) or the AIS code that rates the fatality risk of a given injury. Both injury metrics are assessing the consequences of the accident directly after the accident. However, not all consequences of accidents are visible directly after the accident and the duration of the consequences are different. Besides a physiological reduction of functionality social and psychological implications such as reduced mobility options, problems to continue the original job etc. are happening. In order to assess long term consequences of accidents the MHH Accident Research Unit established a brief questionnaire that is distributed to accident involved people of the Hannover subset of the GIDAS data set approx. one year after the accident beginning with the accident year 2013. The basic idea of using a brief questionnaire (in fact only one page) is to obtain a relatively large return rate because the questionnaire appears to be simple and quickly answered. This appears to be important because it is believed that the majority of accident involved people will not report long term consequences. In order to allow a more detailed survey amongst those responders that are reporting long term consequences they are asked for a written consent for the additional questionnaire that will be distributed at a time that is not yet defined. Long term consequences are reported for all addressed areas, medical, physiological, psychological and sociological by people without injuries, with minor injuries and with severe injuries.
Pedestrian and cyclist are the most vulnerable road users in traffic crashes. One important aspect of this study was the comparable analysis of the exact impact configuration and the resulting injury patterns of pedestrians and cyclists in view of epidemiology. The secondary aim was assessment of head injury risks and kinematics of adult pedestrian and cyclists in primary and secondary impacts and to correlate the injuries related to physical parameters like HIC value, 3ms linear acceleration, and discuss the technical parameter with injuries observed in real-world accidents based documented real accidents of GIDAS and explains the head injuries by simulated load and impact conditions based on PC-Crash and MADYMO. A subsample of n=402 pedestrians and n=940 bicyclists from GIDAS database, Germany was used for preselection, from which 22 pedestrian and 18 cyclist accidents were selected for reconstruction by initially using PC-Crash to calculate impact conditions, such as vehicle impact velocity, vehicle kinematic sequence and throw out distance. The impact conditions then were employed to identify the initial conditions in simulation of MADYMO reconstruction. The results show that cyclists always suffer lower injury outcomes for the same accident severity. Differences in HIC, head relative impact velocity, 3ms linear contiguous acceleration, maximum angular velocity and acceleration, contact force, throwing distance and head contact timing are shown. The differences of landing conditions in secondary impacts of pedestrians and cyclists are also identified. Injury risk curves were generated by logistic regression model for each predicting physical parameters.
Side impacts, both nearside and farside, have been indicated by research to be responsible for a large proportion of serious injuries from road crashes. This study aimed to compare and contrast the characteristics of nearside and farside crashes in Australia, Germany and the U.S., using the ANCIS, GIDAS and NASS/CDS in-depth-databases, in order to establish the impact and injury severity associated with these crashes, and the types of injuries sustained. The analyses revealed some interesting similarities, as well as differences, between both nearside and farside crashes, and the emergent trends between the three investigated countries. More specifically, it was indicated that whilst the severity of injury sustained in nearside crashes was slightly greater overall than that found for farside crashes, careful consideration of struck and nonstruck side occupants must be made when considering aspects such as vehicle design and occupant protection.
This paper reviews briefly the evolution of the investigation of transport accidents from the early beginnings when individual events were studied but systematic data was not collected. In the transport modes other than on the roads, accident investigation early on, even of single events, was important in introducing safety improvements. Road accidents, however, evolved enormously with the growth of car ownership without any comparable political response to the consequent deaths and injuries, equivalent to what happened with the other modes. From the 1950s data bases started to contribute to our knowledge of the epidemiology of road traffic injuries, and in-depth sample studies have contributed much to the body of knowledge in the last 30 years. However, even the basic input and output variables of a crash, its severity and the seriousness of the outcomes in terms of injuries and their consequences are not complete or agreed upon. Issues of experimental design and sampling are discussed. It is proposed that the most important area for current research to address is the effect of population variations on injury outcomes. The need for the establishment of good data bases for active safety issues is emphasised with the consequent need for better links between the research community and the police.
The declining trend since 1991 in the number of killed people was broken in 2011 when overall 4 009 people died in traffic accidents in Germany. The question arises if there is a stagnating trend of fatalities in Germany in future? By breaking down the accidents with casualties towards a monthly view one can see a decreasing trend of fatalities in the warmer months especially since 2009. When comparing against winter months higher deviations are observed. In December 2011 an increase of 191 traffic deaths were registered (181 in 2010 compared to 372 in 2011). Further analyses of different accident influences were evaluated and their possibility of drastic change from one year to the other was determined. As seen weather- and environmental conditions are one of the major contributing factors and are one of the causes for the increased number of fatalities. To support the underlying assumption a model had been created to calculate the number of traffic deaths on a daily basis approach. As an input, road conditions projected through weather parameters and also different driving behaviors on weekdays or holidays were used. As a result, estimates of daily fatality with up to 75% precision can be achieved out of the 2009, 2010 and 2011 data. Further on it shows that weather and street conditions have a high influence on the overall resulting number of traffic accidents with casualties, and especially to the number of fatalities. Hence it is estimated that approximately 3 300 people were killed in traffic accidents in Germany in 2013 which would be again a reduction of another 13% compared to 2012. Therefore an answer to the question will be that the decreasing trend in traffic fatalities in Germany somehow is not broken when environmental conditions are included in national statistics. Their effects will become more visible in future accident statistics and it is estimated variances of 5% to 8% of the annual number of traffic fatalities in Germany will be seen.
Nowadays airbags are part of the standard equipment in almost all new cars. While airbags are saving an increasing number of people from severe injuries and death in moderate and high speed crashes, they do not completely prevent dashboard injuries. The most common mechanism in dashboard injuries is a posteriorly directed force to the proximal tibia with the knee flexed. This may occur during a motor vehicle frontal impact accident when a knee of the driver or the front-seat passenger strikes the dashboard. The posterior force can be combined with a abducting or rotational force leading to concomitant lateral or posterolateral injury. Car and airbag manufacturers therefore develop special inflatable systems to reduce the impact force in dashboard injuries. Every new inflatable system, however, has to be evaluated in out of position situations in which the system might cause injuries to certain body areas. Therefore, we investigated a new kneebag system in different critical seating positions of post mortem test subjects (PMTS). The tested knee airbag module is a folded airbag (18 litre volume) which is installed below the lower section of the instrument panel of a passenger car. Using four PMTS (2 male, 2 female, age 36"67) the following positions were tested: normal seating position, knee flexed >90 degrees and knee flexed <60 degrees in static deployment tests with direct contact. In addition a dynamic test (48.8kph, AAMA-pulse) was carried out with the PMTS belted in a normal seating position. The inflation phase and the impact of the system on the knee/lower leg were analysed by high speed videos. After the test the lower legs of the PMTS were examined by Xray and autopsy. All soft tissue injuries and bone fractures were recorded. All the tests could be evaluated. Except some superficial skin lesions in the impact area no fracture of the bones around the knee and no knee ligament and tendon injuries were observed. Neither video analysis nor autopsy of the PMTS showed any critical contact injuries caused by the inflation process of the bag. Therefore, it can be concluded that in the tested seating positions which are the most critical for the knee area the knee bag system is safe.
Electronic Stability Program (ESP) aims to prevent the lateral instability of a vehicle. Linked to the braking and powertrain systems, it prevents the car from running wide on a corner or the rear from sliding out. It also helps the driver control his trajectory, without replacing him, in the case of loss of control where the driver is performing an emergency manoeuvrer (confused and exaggerated steering wheel actions). A new ESP function optimizes ESP action in curves with hard under steering (situations in which the front wheels lose grip and the vehicle slides towards the outside of the curve). A complementary feature prevents the wheels from spinning when pulling away and accelerating. The name given to the ESP system varies according to the vehicle manufacturer, but other terms include: active stability control (ASC), automotive stability management system (ASMS), dynamic stability control (DSC), vehicle dynamic control (VDC), vehicle stability control (VSC) or electronic stability Control (ESC). This paper proposes an evaluation of the effectiveness of ESP in terms of reduction of injur accidents in France. The method consists of 3 steps: - The identification, in the French National injury accident census (Gendarmerie Nationale only), of accident-involved cars for which the determination of whether or not the car was fitted with ESP is possible. A sample of 1 356 cars involved in injury accidents occurred in 2000, 2001, 2002 and 2003 was then selected. But we had to restrict the analysis to only 588 Renault Lagunas. - The identification of accident situations for which we can determine whether or not ESP is pertinent (for example ESP is pertinent for loss of control accidents whilst it is not for cars pulling out of a junction). - The calculation, via a logistic regression, of the relative risk of being involved in an ESPpertinent accident for ESP equipped cars versus unequipped cars, divided by the relative risk of being involved in a non ESP-pertinent accident for ESP equipped cars versus unequipped cars. This relative risk is assumed to be the best estimator of ESP effectiveness. The arguments for such a method, effectiveness indicator and implicit hypothesis are presented and discussed in the paper. Based on a few assumptions, ESP is proved to be highly effective. Currently, the relative risk of being involved in an ESP pertinent accident for ESP-equipped cars is lower (-44%, although not statistically significant)rnthan for other cars.rn
The Traffic Accident Research Institute at University of Technology Dresden investigates about 1,000 accidents annually in the area around and in Dresden. These datasets have been summarized and evaluated in the GIDAS (German Accident In-Depth Study) project for 13 years. During the project it became apparent that the specific traffic situation of a covert exit of a passenger car and an intersecting two-wheeler involves a high risk potential. This critical situation develops in a large part due to the lack of visibility between the driver and the intersecting bike. In this paper the accident avoidance potential of front camera systems with lateral field of view, which allows the driver to have an indirect sight into the crossing street area will be presented.
The increase in light duty trucks (LDT) on the road in the US is a safety concern because of their aggressivity, or risk they present to occupants of cars, especially in side impacts. We use FARS data to look at fatality trends in frontal and side impacts between cars and LDT. FARS data is also used to determine risk, or fatalities per registered vehicle, imposed on car drivers from other vehicle types. We use NASS CDS data to investigate sources of serious injuries in vehicles with side impact. These sources of injury are categorized into three major groups: 1) contact without intrusion, 2) contact with intrusion, and 3) restraints. We find a greater fraction of intrusion related injuries in cars struck on their side by SUV or pick-up trucks than when they are struck by other cars.
Interaction of road environment, vehicle and human factors in the causation of pedestrian accidents
(2005)
The UK On-the-Spot project (OTS) completed over 1500 in-depth investigations of road accidents during 2000-2003 and is continuing for a further 3 years. Cases were sampled from two regions of England using rotating shifts to cover all days of the week and all hours of the day and night. Research teams were dispatched to accidents notified to police during the shifts; arrival time to the scene of the accident was generally less than 20 minutes. The methodology of OTS includes sophisticated systems for describing accident causation and the interaction of road, vehicle and human factors. The purpose of this paper is to describe and illustrate these systems by reference to pedestrian accidents. This type of analysis is intended to provide an insight into how and why pedestrian accidents occur in order to assist the development of effective road, vehicle and behavioural countermeasures.
A lot of factors are related to a road traffic accident; particularly human factors such as road use characteristic, driving maneuver characteristic and safety attitude are the major ones. As a random factor is also included, so it is necessary to minimize the contribution of a random factor to identify human factors related to a road traffic accident. There are several standpoints for traffic accident analysis, such as vehicle-based, location-based and driver-based. And it is effective to analyze driver-based traffic accident data for discussion on the relation between human factors and accidents. An integrated traffic accident database system was developed for analysis considering driver- accident and violation records by ITARD, and several studies were carried out for the evaluation. Useful data for discussion on the relation between types of collision and traffic violations, and the effect of accident experience to the following accident were obtained.
A national initiative from the vehicle manufacturers, safety system suppliers, the road administration and universities in Sweden took off in 2007. The aim was to develop a national investigation network and a methodology focusing on all phases of a crash (pre-crash, in-crash and post-crash) as well as all parts of the road transport system (road user, vehicle and road environment). The initiative is formally run as a project with the acronym INTACT (Investigation Network and Accident Collection Techniques). It was a three year pilot with the aim to develop methodologies for an extended national crash investigation activity. During the first year the INTACT partners agreed on the aim for the investigation and methods for retrieving the data were developed. During the second and third year the methodology was tested in real-world investigations and further refinement was made. The paper describes the methodology developed to obtain high qualitative in-depth road crash data.
Novice drivers are at high risk for crash involvement. We performed an analysis of causations, injury patterns and distributions of novice drivers in cars and on motorcycles in road traffic as a basis for proper measurements. Method Data of accident and hospital records of novice drivers (licence < 2 years) were analysed focusing the following parameters: injury type, localisation and mechanism, Abbreviated Injury Scale (AIS), maximum AIS (MAIS), delta-v, collision speed and other technical parameters and have been compared to those of experienced drivers. In 18352 accidents in the area of Hannover (years1985"2004), 2602 novice drivers and 18214 experienced drivers were recorded having an accident. Novice car drivers were more often and severe injured than experienced and on motorcycles the experienced riders were at higher risk. Novice drivers of both groups sustained more often extremity injuries. 4.5 % novice car drivers were not restraint compared to 3.7 % of the experienced drivers and 6.1 % novice motorcycle drivers did not wear a proper helmet (versus 6.5 %). Severe injuries sustained at a rate of 20 % at collision speeds below 30 km/h and in 80% at collision speeds above 50 km/h. Novice car drivers drove significant older cars. The risk profile of novice drivers is similar to those of drivers older than 65 years. Structural protection and special lectures like skidding courses could be proper remedial action next to harder punishment of violations.
Injury severity of e.g. pedestrians or bikers after crashes with cars that are reversing is almost unknown. However, crash victims of these injuries can frequently be seen in emergency departments and account for a large amount of patients every year. The objective of this study is to analyze injury severity of patients that were crashed into by reversing cars. The Hannover Medical School local accident research unit prospectively documented 43,000 road traffic accidents including 234 crashes involving reversing cars. Injury severity including the abbreviated injury scale (AIS) and the maximum abbreviated injury scale (MAIS) was analyzed as well as the location of the accident. As a result 234 accidents were included into this study. Pedestrians were injured in 141 crashes followed by 70 accidents involving bikers. The mean age of all crash victims was 57 -± 23 years. Most injuries took place on straight stretches (n = 81) as well as parking areas (n = 59), entries (n = 36) or crossroads (n = 24). The AIS of the lower extremities was highest followed by the upper extremities. The AIS of the neck was lowest. The mean MAIS was 1.3 -± 0.6. The paper concludes that the lower extremities show the highest risk to become injured during accidents with reversing cars. However, the risk of severe injuries is likely low.
Injury probability functions for pedestrians and bicyclists based on real-world accident data
(2017)
The paper is focusing on the modelling of injury severity probabilities, often called as Injury Risk Functions (IRF). These are mathematical functions describing the probability for a defined population and for possible explanatory factors (variables) to sustain a certain injury severity. Injury risk functions are becoming more and more important as basis for the assessment of automotive safety systems. They contribute to the understanding of injury mechanisms, (prospective) evaluation of safety systems and definition of protection criteria or are used within regulation and/or consumer ratings. In all cases, knowledge about the correlation between mechanical behavior and injury severity is needed. IRFs are often based on biomechanical data. This paper is focusing on the derivation of injury probability models from real world accident data of the GIDAS database (German In-depth Accident Study). In contrast to most academic terms there is no explicit term definition or definition of creation processes existing for injury probability models based on empirical data. Different approaches are existing for such kind of models in the field of accident research. There is a need for harmonization in terms of the used methods and data as well as the handling with the existing challenges. These are preparation of the dataset, model assumptions, censored/unknown data, evaluation of model accuracy, definition of dependent and independent variable, and others. In the presented study, several empirical, statistical and phenomenological approaches were analyzed regarding their advantages and disadvantages and also their applicability. Furthermore, the identification of appropriate prediction parameters for the injury severity of pedestrians has been considered. Due to its main effect on injuries of pedestrians and bicyclists, the importance of the secondary impact has also been analyzed. Finally, the model accuracy, evaluated by several criteria, is the rating factor that gives the quality and reliability for application of the resulting models. After the investigation and evaluation of statistical approaches one method was chosen and appropriate prediction variables were examined. Finally, all findings were summarized and injury risk functions for pedestrians in real world accidents were created. Additionally, the paper gives instructions for the interpretation and usage of such functions. The presented results include IRFs for several injury severity levels and age groups. The presented models are based on a high amount of real world accidents and describe very well the injury severity probability of pedestrians and bicyclists in frontal collisions with current vehicles. The functions can serve as basis for the evaluation of effectiveness of systems like Pedestrian-AEB or Bicycle-AEB.
The purpose of this work is to investigate the association between the injuries in motorcycle accident and the main accident configurations. The data were provided by a multicentric case-control study MAIDS regarding the risk of crash and injuries of motorcyclists. Chi-square test was used to evaluate the relationship between the variables and a logistic regression was performed to evaluate the association of injury severity with some variables supposed to be predictive factors. Lesive patterns characterized by internal haemorrhages are mainly associated with fronto-lateral crashes, above all in urban areas. Lacerations or abrasions, mainly reported in torso and lower extremities, are mostly associated with single crashes or accidents in queue also for crashes occurred to low speed (< 50 km/h). The severity of injuries is highly associated with impact speed, regardless of the crash configuration. Fractures and haemorrhages play an important role in determining the severity of injuries. The upper extremities are the most frequently traumatised anatomic areas.
Europe has benefited from a decreasing number of road traffic fatalities. However, the proportion of older road users increases steadily. In an ageing society, the SENIORS project aims to improve the safe mobility of older road users by determining appropriate requirements towards passive vehicle safety systems. Therefore, the characteristics of road traffic crashes involving the elderly people need to be understood. This paper focuses on car occupants and pedestrians or cyclists in crashes with modern passenger cars. Ten crash databases and four hospital statistics from Europe have been analysed to answer the questions on which body regions are most frequently and severely injured in the elderly, and specific injuries sustained by always comparing older (65 years and above) with midâ€aged road users (25â€64 years). It was found that the body region thorax is of particularly high importance for the older car occupant with injury severities of AIS2 or AIS3+, where as the lower extremities, head and the thorax need to be considered for older pedestrians and cyclists. Further, injury risk functions were provided. The hospital data analysis showed less difference between the age groups. The linkage between crash and hospital data could only be made on a general level as their inclusion criteria were quite different.
Recently, EuroNCAP updated the upper legform test protocols. The main objective of this study is to establish the upper legform test in KIDAS (Korean In-depth Accident Study) taking into account domestic pedestrian accident data as well as anthropometric data to protect elderly pedestrians whose average height and weight is much smaller and lighter than other age groups, especially compared to Europeans. Therefore 230 cases of pedestrian accidents from KIDAS were investigated to explore the injury severity of body regions as well as age related injury patterns. Injuries of all body regions were examined, with a special focus on injuries of abdomen and pelvic area. On the other hand, in order to explore Korea's pedestrian accident environment, national police data and KIDAS (Korean In-depth Accident Study) data were compared. The results should be taken into account in future analyses and possible improvements, such as regulations and KNCAP test protocols, of the pedestrian safety policy in Korea.
This study aimed at developing an injury estimation algorithm for AACN technologies for Germany and compared them to findings based on Japanese data. The data to build and to verify the algorithm was obtained from the German in-depth Accident Database (GIDAS) and split into a training and a validation dataset. Significant input variables and the generalized linear regression model to predict severe injuries (ISS>15) were selected to maximize area under the receiver operating characteristic curve (AUC). Probit regression with the input parameter multiple impact, delta v, seatbelt use and impact direction gave the largest AUC of 0.91. Sensitivity of the algorithm was validated at 90% and specificity at 76% for an injury risk threshold of 2%. It appears that no major differences between Japan and Germany exist for injury estimation based on delta v and impact direction. However, far side impact and multiple crash events appear to be associated with a larger risk increase in the German data.
The number of road accidents in Portugal has decreased significantly in the last decades, however, this tendency is not similar in all types of transportation. In the most recent years and by European standards, Portugal is still one of the leading countries concerning the number of fatalities in Powered Two Wheelers (PTW) accidents. To this effect, the in-depth investigation of PTW accidents is crucial and so, a thorough statistical analysis concerning the main factors influencing PTW riders injury severity accidents was undertaken regarding the 2007-2010 period in the National Road Safety Authority (ANSR) injured riders database using the software SPSS. In addition, to determine the importance of absent factors in the database analysis, such as velocity, a set of 53 real accidents involving PTW were also investigated and computationally reconstructed using the software PC-Crash. Lateral collisions between a motorcycle, its rider and the side of three different passenger cars were also simulated, varying the motorcycle impact angle and velocity in order to estimate the PTW deformation energy and the rider- injuries, as this accident configuration stands out in terms of frequency and even severity. The results of this detailed study are presented.
This study examines the severity and types of injuries sustained by child pedestrians aged 18 years and below in order to identify the body regions at greatest risk for injury in a pedestrian accident. Detailed medical diagnoses were reviewed retrospectively for 572 child pedestrians admitted to an urban pediatric trauma center with injuries during the time period from January 2001 to December 2005. Eighty percent of these children sustained AIS 2 or greater injuries, most commonly to the lower extremity (41%) and head (34%). Fortyfour percent of admitted children had more significant AIS 3 or greater injuries primarily to the head (58%), thorax (17%) and lower extremities (14%). Testing procedures to assess the child- interaction with the motor vehicle should include injury assessment for the pediatric head, thorax and lower extremities. This understanding of how child pedestrians interact with motor vehicles may provide insight into effective countermeasures with potential for implementation in vehicle designs world-wide.