Sonstige
Filtern
Erscheinungsjahr
Dokumenttyp
- Konferenzveröffentlichung (309) (entfernen)
Sprache
- Englisch (309) (entfernen)
Schlagworte
- Conference (253)
- Konferenz (252)
- Accident (133)
- Unfall (133)
- Germany (123)
- Deutschland (122)
- Injury (97)
- Verletzung (96)
- Unfallrekonstruktion (73)
- Analyse (math) (61)
- Analysis (math) (60)
- Statistics (59)
- Schweregrad (Unfall, Verletzung) (58)
- Statistik (58)
- Severity (accid, injury) (56)
- Tödlicher Unfall (52)
- Fatality (51)
- Reconstruction (accid) (47)
- Simulation (46)
- Fußgänger (45)
- Pedestrian (45)
- injury) (43)
- Datenbank (42)
- Data acquisition (41)
- Datenerfassung (41)
- Schweregrad (Unfall (41)
- Verletzung) (41)
- Car (40)
- Safety (38)
- Severity (accid (38)
- Bewertung (37)
- Evaluation (assessment) (37)
- On the spot accident investigation (37)
- Sicherheit (37)
- Untersuchung am Unfallort (37)
- Cause (36)
- Ursache (36)
- Collision (34)
- Zusammenstoß (34)
- Anfahrversuch (33)
- Fahrzeug (33)
- Vehicle (31)
- Radfahrer (30)
- Unfallverhütung (30)
- Accident prevention (29)
- Cyclist (29)
- Data bank (29)
- Frontalzusammenstoß (27)
- Accident reconstruction (26)
- Head on collision (26)
- Motorcyclist (26)
- Motorradfahrer (26)
- Driver (25)
- Europa (25)
- Europe (25)
- Fahrer (25)
- Geschwindigkeit (25)
- Impact test (veh) (24)
- Speed (24)
- Active safety system (22)
- Fahrerassistenzsystem (22)
- Insasse (22)
- Leistungsfähigkeit (allg) (22)
- PKW (21)
- Aktives Sicherheitssystem (20)
- Method (20)
- Passives Sicherheitssystem (20)
- Efficiency (19)
- Prüfverfahren (19)
- Test method (19)
- Vehicle occupant (19)
- Driver assistance system (18)
- Passive safety system (18)
- Pkw (18)
- Risiko (18)
- Verfahren (18)
- Benutzung (16)
- Child (16)
- Interview (16)
- Kind (16)
- Sicherheitsgurt (16)
- Test (16)
- Use (16)
- Anthropometric dummy (15)
- Risk (15)
- Seitlicher Zusammenstoß (15)
- Versuch (15)
- Biomechanics (14)
- Biomechanik (14)
- Head (14)
- Kopf (14)
- Motorrad (14)
- Safety belt (14)
- Side impact (14)
- Accident rate (13)
- Leg (human) (13)
- Motorcycle (13)
- Risikobewertung (13)
- Alte Leute (12)
- Brustkorb (12)
- Dummy (12)
- Rechenmodell (12)
- Risk assessment (12)
- Unfallhäufigkeit (12)
- Überschlagen (12)
- Auffahrunfall (11)
- Database (11)
- Fahrzeugsitz (11)
- Mathematical model (11)
- Old people (11)
- Rear end collision (11)
- Schutzhelm (11)
- Airbag (10)
- Berechnung (10)
- Crash helmet (10)
- Fehler (10)
- Human factor (10)
- Improvement (10)
- Menschlicher Faktor (10)
- Overturning (veh) (10)
- Seat (veh) (10)
- Thorax (10)
- Verbesserung (10)
- Behaviour (9)
- Bein (menschl) (9)
- Calculation (9)
- Development (9)
- Entwicklung (9)
- Error (9)
- Front (9)
- Japan (9)
- Krankenhaus (9)
- Prognose (9)
- Verhalten (9)
- Age (8)
- Air bag (restraint system) (8)
- Alter (8)
- Bremsung (8)
- Deformation (8)
- Digital model (8)
- Hospital (8)
- Lorry (8)
- Numerisches Modell (8)
- Wirbelsäule (8)
- Antikollisionssystem (7)
- Austria (7)
- Braking (7)
- Erste Hilfe (7)
- Fahranfänger (7)
- Fracture (bone) (7)
- Knee (human) (7)
- Knochenbruch (7)
- Measurement (7)
- Messung (7)
- Prevention (7)
- Recently qualified driver (7)
- USA (7)
- Verformung (7)
- Österreich (7)
- Cervical vertebrae (6)
- China (6)
- Collision avoidance system (6)
- Cost benefit analysis (6)
- EU (6)
- Forecast (6)
- Halswirbel (6)
- Impact study (6)
- Impact test (6)
- India (6)
- Indien (6)
- Interior (veh) (6)
- Knie (menschl) (6)
- Knotenpunkt (6)
- Modification (6)
- Ort (Position) (6)
- Portugal (6)
- Software (6)
- Spinal column (6)
- Standardisierung (6)
- Vereinigtes Königreich (6)
- Verminderung (6)
- Veränderung (6)
- Vorn (6)
- Wirtschaftlichkeitsrechnung (6)
- Analyse (Math) (5)
- Angle (5)
- Correlation (math, stat) (5)
- Decrease (5)
- Driver training (5)
- Eins (5)
- Electronic stability program (5)
- Fahrausbildung (5)
- Fahrstabilität (5)
- Fahrzeuginnenraum (5)
- First aid (5)
- Frau (5)
- Human body (5)
- Location (5)
- Menschlicher Körper (5)
- One (5)
- Policy (5)
- Politik (5)
- Post crash (5)
- Sensor (5)
- Standardization (5)
- Vehicle handling (5)
- Winkel (5)
- Wirksamkeitsuntersuchung (5)
- Abdomen (4)
- Adolescent (4)
- Automatisch (4)
- Belastung (4)
- Bemessung (4)
- Bremse (4)
- Classification (4)
- Coefficient of friction (4)
- Collision test (veh) (4)
- Compatibility (4)
- Damage (4)
- Deformable barrier (impact test) (4)
- Delivery vehicle (4)
- Design (overall design) (4)
- Detection (4)
- Distraction (4)
- Driver information (4)
- Dynamics (4)
- Dynamik (4)
- Elektronisches Stabilitätsprogramm (4)
- Estimation (4)
- Fahrdatenschreiber (4)
- Finite element method (4)
- France (4)
- Frankreich (4)
- Impact sled (4)
- International (4)
- Jugendlicher (4)
- Junction (4)
- Klassifizierung (4)
- Kompatibilität (4)
- Korrelation (math, stat) (4)
- LKW (4)
- Load (4)
- Oberflächentextur (4)
- Occupant (veh) (4)
- Probability (4)
- Regression analysis (4)
- Regressionsanalyse (4)
- Reibungsbeiwert (4)
- Reproducibility (4)
- Reproduzierbarkeit (4)
- Sachschaden (4)
- Schweden (4)
- Seite (4)
- Sichtbarkeit (4)
- Surface texture (4)
- Technologie (4)
- Technology (4)
- Transport infrastructure (4)
- Unfallfolgemaßnahme (4)
- United Kingdom (4)
- Unterleib (4)
- Verhütung (4)
- Verkehrsteilnehmer (4)
- Sichtbarkeit (4)
- Wahrscheinlichkeit (4)
- Woman (4)
- Ablenkung (psychol) (3)
- Aufprallschlitten (3)
- Ausrüstung (3)
- Automatic (3)
- Befreiung (Bergung) (3)
- Bein (3)
- Bicycle (3)
- Blickfeld (3)
- Brake (3)
- Camera (3)
- Crash test (3)
- Czech Republic (3)
- Decision process (3)
- Deformierbare Barriere (Anpralltest) (3)
- Detektion (3)
- Digitale Bildverarbeitung (3)
- Drunkenness (3)
- Effectiveness (3)
- Einstellung (psychol) (3)
- Electric vehicle (3)
- Elektrofahrzeug (3)
- Entscheidungsprozess (3)
- Equipment (3)
- Erziehung (3)
- Event data recorder (road vehicle) (3)
- Extrication (3)
- Fahrgeschicklichkeit (3)
- Fahrrad (3)
- Field of vision (3)
- Forschungsarbeit (3)
- Gesetzgebung (3)
- Griffigkeit (3)
- Information (3)
- Information documentation (3)
- Kamera (3)
- Kleidung (3)
- Korea (Süd) (Demokratische Republik) (3)
- Legislation (3)
- Lieferfahrzeug (3)
- Lkw (3)
- Man (3)
- Mann (3)
- Medizinische Untersuchung (3)
- Methode der finiten Elemente (3)
- Norm (tech) (3)
- Overlapping (3)
- Passenger (3)
- Republic of Korea (3)
- Research project (3)
- Road network (3)
- Road user (3)
- Run off the road (accid) (3)
- Schutzeinrichtung (3)
- Severity (acid (3)
- Skidding resistance (3)
- Spain (3)
- Spanien (3)
- Specification (standard) (3)
- Specifications (3)
- Steifigkeit (3)
- Stiffness (3)
- Straßennetz (3)
- Trunkenheit (3)
- Tschechische Republik (3)
- Tunnel (3)
- United kingdom (3)
- Verkehrsinfrastruktur (3)
- Verschiebung (3)
- Versuchspuppe (3)
- Vorne (3)
- Abbiegen (2)
- Abkommen von der Fahrbahn (Unfall) (2)
- Accuracy (2)
- Adult (2)
- Advanced driver assistance system (2)
- Anti locking device (2)
- Antiblockiereinrichtung (2)
- Attitude (psychol) (2)
- Australia (2)
- Australien (2)
- Autobahn (2)
- Automatische Notbremsung (2)
- Autonomes Fahren (2)
- Autonomes Fahrzeug (2)
- Autonomous driving (2)
- Autonomous emergency braking (2)
- Autonomous vehicle (2)
- Behinderter (2)
- Beinahe Unfall (2)
- Blutkreislauf (2)
- Body (car) (2)
- Bremsweg (2)
- Bus (2)
- Circulation (blood) (2)
- Clothing (2)
- Coach (2)
- Communication (2)
- Contact (tyre road) (2)
- Cost (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 (veh) (2)
- Durability (2)
- Edge (2)
- Education (2)
- Eindringung (2)
- Eingabedaten (2)
- Electric bicycle (2)
- Electronic driving aid (2)
- Elektrofahrrad (2)
- Entdeckung (2)
- Ergonomics (2)
- Ergonomie (2)
- Erwachsener (2)
- Eu (2)
- Fahrbahnüberquerung (2)
- Fahrerinformation (2)
- Fahrsimulator (2)
- Fahrzeugführung (2)
- Fernverkehrsstraße (2)
- Fire (2)
- Foot (not a measure) (2)
- Fuß (2)
- Gefahrenabwehr (2)
- Geländefahrzeug (2)
- Gewicht (2)
- Government (national) (2)
- Harmonisation (2)
- Hazard (2)
- Head restraint (2)
- Highway (2)
- Highway design (2)
- Hinten (2)
- Input data (2)
- Intelligent transport system (2)
- Intersection (2)
- Karosserie (2)
- Kommunikation (2)
- Kontakt Reifen Straße (2)
- Kontrolle (2)
- Kopfstütze (2)
- Kosten (2)
- Langfristig (2)
- Learning (2)
- Long term (2)
- Main road (2)
- Medical aspects (2)
- Medical examination (2)
- Medizinische Gesichtspunkte (2)
- Methode der finite Elemente (2)
- Mobile phone (2)
- Mobiltelefon (2)
- Movement (2)
- Near miss (2)
- Netherlands (2)
- Niederlande (2)
- Output (2)
- Penetration (2)
- Planning (2)
- Planung (2)
- Posture (2)
- Prototyp (2)
- Prototype (2)
- Public transport (2)
- Quality (2)
- Qualität (2)
- Reaction (human) (2)
- Reaktionsverhalten (2)
- Rear (2)
- Recording (2)
- Regierung (staat) (2)
- Reisebus (2)
- Restraint system (2)
- Richtlinien (2)
- Road traffic (2)
- Safety fence (2)
- Security (2)
- Shock (2)
- Side (2)
- Simulator (driving) (2)
- Skill (road user) (2)
- Sport utility vehicle (2)
- Straße (2)
- Straßenentwurf (2)
- Straßenverkehr (2)
- Surveillance (2)
- Sweden (2)
- Telefon (2)
- Telephone (2)
- Theorie (2)
- Theory (2)
- Three dimensional (2)
- Tiefe (2)
- Time (2)
- Traffic (2)
- Trend (stat) (2)
- Turn (2)
- Unfallopfer (2)
- Vehicle regulations (2)
- Verkehr (2)
- Weight (2)
- Wet road (2)
- Windschutzscheibe (2)
- Zeit (2)
- Zeitreihe (stat) (2)
- Öffentlicher Verkehr (2)
- Überlappung (2)
- (menschl) (1)
- Ability (road user) (1)
- Abkommen von der Fahrbahn (1)
- Ablenkung (1)
- Absorption (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)
- Airbag (restraint system) (1)
- Aktive Sicherheit (1)
- Analyse (1)
- Analyses (math) (1)
- Anthropometrie (1)
- Anthropometry (1)
- Apparatus (measuring) (1)
- Arbeitsgruppe (1)
- Arm (human) (1)
- Arm (menschl) (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)
- Bearing capacity (1)
- Bein [menschl] (1)
- Bepflanzung (1)
- Beschleunigung (1)
- Bevölkerung (1)
- Bewehrung (1)
- Bicyclist (1)
- Boden (1)
- Bone (1)
- Braking distance (1)
- Brand (1)
- Breaking (1)
- Bridge (1)
- Bridge management system (1)
- Bruch (mech) (1)
- Brücke (1)
- Brücken Management System (1)
- Budget (1)
- Car door (1)
- Carbon dioxide (1)
- Carriageway (1)
- Chassis (1)
- Chest (1)
- Clay (1)
- Climate change (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)
- Crash Test (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)
- Deformierte Barriere (Anpralltest) (1)
- Demand (econ) (1)
- Demografie (1)
- Demography (1)
- Density (1)
- Deterioration (1)
- Dichte (1)
- Digital computer (1)
- Digitalrechner (1)
- Displacement (1)
- Distribution (gen) (1)
- Driving aid (electronic) (1)
- Dtetection (1)
- Durchsichtigkeit (1)
- Dämpfung (1)
- EU directive (1)
- EU-Richtlinie (1)
- Earthworks (1)
- Eigenschaft (1)
- Ejection (1)
- Elastizitätsmodul (1)
- Electronics (1)
- Elektronik (1)
- Elektronisches Stabilitätsprogram (1)
- Emergency (1)
- Emergency medical aid (1)
- Empfindlichkeit (1)
- Energie (1)
- Energy (1)
- Enforcement (law) (1)
- Entgleisung (Zug) (1)
- Erdarbeiten (1)
- Erfahrung (menschl) (1)
- Event data recorder (Road vehicle) (1)
- Experience (human) (1)
- Expert system (1)
- Expertensystem (1)
- Expressway (1)
- Face (human) (1)
- Facility (1)
- Fahrbahn (1)
- Fahrerinformationen (1)
- Fahrleistung (1)
- Fahrwerk (1)
- Fahrzeugdach (1)
- Fahrzeugflotte (1)
- Fahrzeugrückhaltesystem (1)
- Fahrzeugteil (Sicherheit) (1)
- Fatigue (human) (1)
- Fear (1)
- Fence (1)
- Feuer (1)
- Financing (1)
- Finanzierung (1)
- Finland (1)
- Finnland (1)
- Fleet of vehicles (1)
- Flooding (1)
- Flugsicherung (1)
- Form (1)
- Frequency (1)
- Friction (1)
- Fuel tank (1)
- Fugenfüllung (1)
- Furcht (1)
- Führerschein Punktesystem (1)
- Genauigkeit (1)
- Geografisches Information System (1)
- Geographical information system (1)
- Geomembran (1)
- Geomembrane (1)
- Geometry (shape) (1)
- Geradeausverkehr (1)
- Geschwindigkeitsbeschränkung (1)
- Gesetzesdurchführung (1)
- Gesetzesübertretung (1)
- Gesicht (1)
- Gesundheit (1)
- Harmonisierung (1)
- Head (human) (1)
- Health (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)
- 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)
- Jahreszeit (1)
- Kleintransporter (1)
- Klimawandel (1)
- Knie (1)
- Knochen (1)
- Kognitive Beeinträchtigung (1)
- Kohlendioxid (1)
- Kontakt Reifen-Straße (1)
- Konzentration (1)
- Kopf (menschl) (1)
- Korea (Süd) (1)
- Korrelation [math (1)
- Kraftfahrzeug (1)
- Kraftstofftank (1)
- Krankheit (1)
- Kreisverkehrsplatz (1)
- Kreuzung (1)
- Körperhaltung (1)
- Körperstellung (1)
- Landstraße (1)
- Lap strap (1)
- Lateral (1)
- Lateral collision (1)
- Layer (1)
- Lebenszyklus (1)
- Leistungsfähigkeit (Allg.) (1)
- Length (1)
- Lernen (1)
- Links (1)
- Luftreinhaltung (1)
- Länge (1)
- Lärm (1)
- Malaysia (1)
- Market (1)
- Markt (1)
- Massenunfall (1)
- Materialveraenderung (allg) (1)
- Mathematical Model (1)
- Matrix (1)
- Mean (math) (1)
- Text (1)
- Messgerät (1)
- Mittelwert (1)
- Mobility (1)
- Mobilität (1)
- Model (not math) (1)
- Modell (1)
- Modulus of elasticity (1)
- Montage (1)
- Moped (1)
- Motorisierungsgrad (1)
- Motorway (1)
- Multiple collision (1)
- Müdigkeit (1)
- Nachfrage (1)
- Nachricht (1)
- Nasse Strasse (1)
- Nasse Straße (1)
- Netzplantechnik (1)
- Neural network (1)
- Neuronales Netz (1)
- Nigeria (1)
- Noise (1)
- Nordamerika (1)
- North America (1)
- Norway (1)
- Norwegen (1)
- Notfall (1)
- Nummer (1)
- Nutzwertanalyse (1)
- Oberfläche (1)
- Offence (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)
- Partnerschaft (1)
- Partnership (1)
- Peat (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)
- Polyvinylchloride (1)
- Population (1)
- Portable (1)
- Position (1)
- Pregnancy (1)
- Preloading (soil) (1)
- Properties (1)
- Protective helmet (1)
- Prüefverfahren (1)
- Pssives Sicherheitssystem (1)
- Psychological aspects (1)
- Psychologische Gesichtspunkte (1)
- QAccident (1)
- Quality assurance (1)
- Quality management system (1)
- Qualitätsmanagementsystem (1)
- Qualitätssicherung (1)
- Radfahren (1)
- Radweg (1)
- Rail bound transport (1)
- Rail traffic (1)
- Rain (1)
- Rechts (1)
- Reconstruction [accid] (1)
- Reduction (decrease) (1)
- Regen (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)
- Risk taking (1)
- Road (1)
- Road transport (1)
- Robot (1)
- Roboter (1)
- Roll over (veh) (1)
- Roof (veh) (1)
- Rotation (1)
- Roundabout (1)
- Rsk (1)
- Rupture (1)
- Rural road (1)
- Röntgenstrahlung (1)
- Rücken (1)
- Rücksichtslosigkeit (1)
- Rückwärtsfahren (1)
- Safety harness (1)
- Safety system (1)
- Saftey (1)
- Sauerstoff (1)
- Schicht (1)
- Schienentransport (1)
- Schienenverkehr (1)
- Schlag (1)
- Schleudertrauma (1)
- Schnittstelle (1)
- Schutz (1)
- Schwangerschaft (1)
- Schweiz (1)
- Schweregrad (UNfall (1)
- Schätzung (1)
- Sealing compound (1)
- Season (1)
- Seat (1)
- Seat belt (1)
- Seat harness (1)
- Sensitivity (1)
- Service life (1)
- Settlement (1)
- Setzung (1)
- Severity (accid, injuy) (1)
- Sicherheitspolsterung (1)
- Significance (1)
- Signifikanz (1)
- Social factors (1)
- Soil (1)
- Soziale Faktoren (1)
- Speed limit (1)
- Speed) (1)
- Spinal calum (1)
- Sri Lanka (1)
- Stadt (1)
- Stahl (1)
- Stand der Technik (Bericht) (1)
- State of the art report (1)
- Statistik (math) (1)
- Steel (1)
- Stochastic process (1)
- Stochastischer Prozess (1)
- Stopping distance (1)
- Straight ahead (traffic) (1)
- Strasse (1)
- Straßentransport (1)
- Stress (psychol) (1)
- Subsoil (1)
- Surface (1)
- Surfacing (1)
- Switzerland (1)
- Tag (24 Stunden) (1)
- Technische Vorschriften (1)
- Technische Vorschriften (Kraftfahrzeug) (1)
- Tension (1)
- Test procedure (1)
- Thailand (1)
- Ton (Gestein) (1)
- Torf (1)
- Traffic restraint (1)
- Tragbar (1)
- Tragfähigkeit (1)
- Transparent (1)
- Transport operator (1)
- Transportunternehmen (1)
- Traveler (1)
- Two dimensional (1)
- Tyre (1)
- Tyre tread (1)
- Tätigkeitsbericht (1)
- Underride prevention (1)
- Unfallfolgephase (1)
- Unfallneigung (1)
- Unfallrate (1)
- Unfallrekonsruktion (1)
- Unfallschwerpunkt (1)
- Unfallverhütug (1)
- Ungeschützter Verkehrsteilnehmer (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 ownership (1)
- Vehicle restraint system (1)
- Vehicle safety device (1)
- Veletzung) (1)
- Vereinigtes Königreichl (1)
- Verfahen (1)
- Verfahren ; Verkehrsinfrastruktur (1)
- Verkehrsbeschränkung (1)
- Vermeidung (1)
- Verständnis (1)
- Verteilung (allg) (1)
- Verwaltung (1)
- Visualisation (1)
- Visualisierung (1)
- Vorbelastung (Boden) (1)
- Vulnerable road user (1)
- Wahrnehmung (1)
- Wasser (1)
- Water (1)
- Weather (1)
- Whiplash injury (1)
- Window (veh) (1)
- Windscreen (veh) (1)
- Wirkungsanalyse (1)
- Witterung (1)
- Wohngebiet (1)
- Women (1)
- Working group (1)
- Zahl (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
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.
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.
[Introduction:] A large number of road users involved in road traffic crashes recover from their injuries, but some of them never recover fully and suffer from some kind of permanent disability. In addition to loss of life or reduced quality of life, road accidents carry many and diverse consequences to the survivors such as legal implications, economic burden, job absences, need of care from a third person, home and vehicle adaptations as well as psychological consequences. Within an EU funded project MOVE/C4/SUB/2011-294/SI2.628846 (REHABIL AID) these consequences were analyzed more detailed.
The objectives of this paper are the analysis of the accident risk of drivers brain pathologies (Mild Cognitive Impairment, Alzheimer- disease, and Parkinson- disease), and the investigation of the impact of driver distraction on the accident risk of patients with brain pathologies, through a driving simulator experiment. The three groups of patients are compared to a healthy group of similar demographics, with no brain pathology. In particular, 125 drivers of more than 55 years old (34 "controls"" and 91 "patients") went through a large driving simulator experimental process, in which incidents were scheduled to occur. They drove in rural and urban areas, in low and high traffic volumes and in three distraction conditions (undistracted driving, conversation with a passenger and conversation through a mobile phone). The statistical analyses indicated several interesting findings; brain pathologies affect significantly accident risk and distraction affects more the groups of patients than the control one.
Whiplash injuries are characterized by the high variability of its symptoms and by the subjectivity of its diagnosis, which sometimes leads to frauds perpetrated by victims of rear-end impacts. It is estimated that whiplash injuries cost annually about 10.000 million Euros in Europe. Therefore, the aim of this study was to investigate the influence of the dynamics of the accident in which the victim was involved in the probability of development of whiplash associated injuries. In the presented methodology, first an accident reconstruction is performed where the dynamics of the accident is determined. This is carried out using the software PC-Crash, police and insurance companies' data. Then biomechanical injuries criteria related with whiplash injuries are evaluated. For the evaluation of the probability of having whiplash injuries, the Neck Injury Criterion (NIC) of the victim and the mean acceleration of the vehicle were evaluated. Then, with medical reports, the results of the accident reconstruction are correlated with the reported injuries. Some examples are presented. The results obtained indicate that the study of the dynamics of the road accidents in which the victims were involved could be used as an auxiliary of the prognosis of whiplash injuries and is important for a precise diagnosis of this type of injuries.
In most of developed countries, the progress made in passive safety during the last three decades allowed to drastically reduce the number of killed and severely injured especially for occupants of passenger cars. This reduction is mainly observed for frontal impacts for which the AIS3+ injuries has been reduced about 52% for drivers and 38% for front passengers. The stiffening of the cars' structure coupled with the generalization of airbags and the improvement of the seatbelt restraint (load limiter, pretension, etc.) allowed to protect vital body regions such as head, neck and thorax. However, the abdomen did not take advantage with so much success of this progress. The objective of this study is to draw up an inventory on the abdominal injuries of the belted car occupants involved in frontal impact, to present adapted counter-measures and to assess their potential effectiveness. In the first part the stakes corresponding to the abdominal injuries will be defined according to types of impact, seat location, occupants' age and type of injured organs. Then, we shall focus on the abdominal injury risk curves for adults involved in frontal impact and on the comparisons of the average risks according to the seat location. In the second part we will list counter-measures and we shall calculate their effectiveness. The method of case control will be used in order to estimate odds ratio, comparing two samples, given by occupants having or not having the studied safety system. For this study, two type of data sources are used: national road injured accident census and retrospective in-depth accident data collection. Abdominal injuries are mainly observed in frontal impact (52%). Fatal or severe abdominal occupant- injuries are observed at least in 27% of cases, ranking this body region as the most injured just after the thorax (51%). In spite of a twice lower occupation rate in the back seats compared to the front seats, the number of persons sustaining abdominal injuries at the rear place is higher than in the front place. In recent cars, the risk of having a serious or fatal abdominal injury in a frontal impact is 1.6% for the driver, 3.6% for the front passenger and 6.3% for the rear occupants. The most frequently hurt organs are the small intestine (17%), the spleen (16%) and the liver (13%). The most common countermeasures have a good efficiency in the reduction of the abdominal injuries for the adults: the stiffness of the structure of the seats allows decreasing the abdominal injury risk from 54% (driver) to 60% (front occupant), the seatbelt pretensioners decrease also this risk from 90% (driver) to 83% (front passenger).
Still correlated with high mortality rates in traffic accidents traumatic aortic ruptures were frequently detected in unprotected car occupants in the early years. This biomechanical analysis investigates the different kinds of injury mechanisms leading to traumatic aortic injuries in todays traffic accidents and how the way of traffic participation affects the frequency of those injuries over the years. Based on GIDAS reported traffic accidents from 1973 to 2014 are analyzed. Results show that traumatic aortic injuries are mainly observed in high-speed accidents with high body deceleration and direct load force to the chest. Mostly chest compression is responsible for the load direction to the cardiac vessels. The main observed load vector is from caudal-ventral and from ventral solely, but also force impact from left and right side and in roll-over events with chest compression lead to traumatic aortic injuries. Classically, the injury appeares at the junction between the well-fixed aortic arch and the pars decendens following a kind of a scoop mechanism, a few cases with a hyperflexion mechanism are also described. In our analysis the deceleration effect alone never led to an aortic rupture. Comparing the past 40 years aortic injuries shift from unprotected car occupants to today's unprotected vulnerable road users like pedestrians, cyclists and motorcyclists. Still the accident characteristics are linked with chest compression force under high speed impact, no seatbelt and direct body impact.
To elucidate the risk of pedestrians, bicycle and motorbike users, data of two accident research units from 1999 to 2014 were analysed in regard to demographic data, collision details, preclinical and clinical data using SPSS. 14.295 injured vulnerable road users were included. 92 out of 3610 pedestrians ("P", 2.5%), 90 out of 8307 bicyclists ("B", 1.1%) and 115 out of 4094 motorcycle users ("M", 2.8%) were diagnosed with spinal fractures. Thoracic fractures were most frequent ahead of lumbar and cervical fractures. Car collisions were most frequent mechanism (68, 62 and 36%). MAIS was 3.8, 2.8 and 3.2 for P, B and A with ISS 32, 16 and 23. AIS-head was 2.2, 1.3 and 1.5). Vulnerable road users are at significant risk for spine fractures. These are often associated with severe additional injuries, e.g. the head and a very high overall trauma severity (polytrauma).
While cyclists and pedestrians are known to be at significant risk for severe injuries when exposed to road traffic accidents (RTAs) involving trucks, little is known about RTA injury risk for truck drivers. The objective of this study is to analyze the injury severity in truck drivers following RTAs. Between 1999 and 2008 the Hannover Medical School Accident Research Unit prospectively documented 43,000 RTAs involving 582 trucks. Injury severity including the abbreviated injury scale (AIS) and the maximum abbreviated injury scale (MAIS) were analyzed. Technical parameters (e.g. delta-v, direction of impact), the location of accident, and its dependency on the road type were also taken into consideration. The results show that the safety of truck drivers is assured by their vehicles, the consequence being that the risk of becoming injured is likely to be low. However, the legs especially are at high risk for severe injuries during RTAs. This probability increases in the instance of a collision with another truck. Nevertheless, in RTAs involving trucks and regular passenger vehicles, the other party is in higher risk of injury.
A study on knowledge and practices of first aid and CPR among police officers in Colombo and Gampaha
(2017)
Around 85% of deaths in developing countries have been found to be due to road traffic accidents (RTAs), which cost the countries around 1-2% of their gross national product (GNP). In Sri Lanka there were 2,436 deaths reported from 36,045 RTAs in 2014. This study aimed at assessing first aid and cardiopulmonary resuscitation (CPR) knowledge among police officers and identifying its relationship to their first aid and CPR practices. A study was done on 493 police officers from Colombo and Gampaha who were selected using convenience sampling through a self-administered questionnaire. The results showed that the police officers had unsatisfactory knowledge and practices of CPR and interventions for bleeding and fractures. These should therefore be focused in their further training.
In this study, we compared the injury severity of occupants according to the seating position and the crashing direction in motor vehicle accidents. In the driver's point of view, it was separated the seating position as "Near-side" and "Far-side". The study subjects were targeted by people who visited 4 regional emergency centers following motor vehicle accidents. Real-world investigation was performed by direct and indirect methods after patient- consent. The information of the damaged vehicle was informed by Collision Deformation Classification (CDC) code and the information of the injury of patients was informed by using the Abbreviated Injury Score (AIS) and Injury Severity Score (ISS). When the column 3 in CDC code was P, damaged at the middle part of lateral side, the average point of AIS 3 was 1.91-±1.72 in near-side and 1.02-±1.31 in far-side (p<0.01). The average point of maximum AIS (MAIS) was 2.78-±1.39 in near-side and 2.02-±1.11 in far-side (p<0.01). The average point of ISS was 15.74-±14.71 in near-side and 8.11-±8.39 in far-side (p<0.01). Also, when the column 3 in CDC code was D, damaged at the whole part of lateral side, it was significant that the average point of AIS 3 and MAIS in near-side was bigger than in far-side (p=0.02).
For the avoidance of traffic accidents by means of advanced driver assistance systems the knowledge of failures and deficiencies a few seconds before the crash is of increasing importance. This information e.g. is collected in the German accident survey GIDAS by an interview derived from the ACAS methodology. However to display the whole range of accident causation factors additional information is needed on enduring factors of the system components "human", "infrastructure" and "machine". On the strategic level these accident moderating factors include long term influences such as medical preconditions or a general higher risk taking behavior as well as influences on the immediate conflict level such as an aggressive response to a perceived previous traffic conflict. This study was conducted to examine the feasibility of collecting such causation information in the scope of an in-depth accident investigation like GIDAS. Due to the comprehensive amount of information necessary to estimate the moderating factors the collection of the information is distributed to different methods. 5 cases of real world crashes have been investigated where information was collected on-scene and retrospective by interviews. The identified moderating factors of the accidents and the method for collecting the information are displayed.
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.
Driver distraction
(2017)
This report for the Institute of Advanced Motorists (IAM) summarises recent research and knowledge from scientific studies about distracted driving. The report defines what it means to be "distracted" when driving, discusses the impact of distraction on driver behaviour and safety, and what can be done to reduce distracted driving. The focus of distraction discussed here relates to how drivers engage with technology when driving. The report begins with a background to driver distraction, followed by discussion about what is actually meant by driver distraction. It is then considered why humans cannot successfully do two things at the same time, particularly within the context of driving. The subsequent section summarises the scientific research findings to date with regard to driver distraction and technology, and how this affects different types of road user. Recommendations for how driver distraction can be mitigated in the real world and a summary conclude the report. Responses to common questions raised by drivers are presented in Appendix A.
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 incidence of side impacts was investigated from GIDAS data. Both vehicle-fixed object and vehicle-vehicle collisions were analysed as these are enclosed within the consumer testing program. Vehicle-fixed object collisions were stratified according to ESC availability. Results indicated that vehicles equipped with ESC rarely have pure-lateral impacts. An increase in oblique collisions was seen for the vehicles with ESC whereby most vehicle were driving in left curves. The analysis of vehicle-vehicle collisions developed injury risk curves were developed at the AIS3+ injury severity for the vehicle-vehicle side impacts. Results suggested that greatest injury risk occurred when a Pre Euro NCAP vehicle was struck by a Post Euro-NCAP vehicle. The remaining curves did not show different behaviour, indicating that stiffness increased have been equally combated. This was attributable to the few Post Euro-NCAP vehicles that had a deployed curtain airbag available in the sample. The integration of Euro NCAP testing has shown to improve vehicle crashworthiness for pole collisions, as those vehicles with ESC rarely incur lateral impacts.
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.
The Decision Support System (DSS) is one of the key objectives of the European co-funded research project SafetyCube in order to better support evidence-based policy making. Results will be assembled in the form of a DSS that will present for each suggested road safety measure: details of risk factor tackled, measure, best estimate of casualty reduction effectiveness, cost-benefit evaluation and analytic background. The development of the DSS presents a great potential to further support decision making at local, regional, national and international level, aiming to fill in the current gap of comparable measures effectiveness evaluation. In order to provide policy-makers and industry with comprehensive and well-structured information about measures, it is essential that a systems approach is used to ensure the links between risk factors and all relevant safety measures are made fully visible. The DSS is intended to become a major source of information for industry, policy-makers and the wider road safety community.
The market introduction and penetration of electric vehicles can be seen as a milestone in order to reduce the environmental burden imposed by the transport sector. The wide-spread use of electric vehicles powered by electricity from renewable sources promises a substantial reduction of local emissions in urban areas as well as greenhouse gas emissions. To be a successful mobility alternative several obstacles and challenges have to be overcome first. Especially the customers' purchase decision determines finally whether an innovation like electromobility will be successful. Therefore, this paper concentrates on demand-related obstacles and barriers for a broad market deployment of electric cars. Within the Electromobility+ project eMAP these issues are investigated via a consumer survey. It was designed to identify the awareness of potential consumers of electric cars as well as give an estimate of the attitude towards this new technology. In addition to the picture of potential demand-related obstacles the consumers were asked to evaluate the suitability of various promotion measures.
In the European Project FIMCAR, a proposal for a frontal impact test configuration was developed which included an additional full width deformable barrier (FWDB) test. Motivation for the deformable element was partly to measure structural forces as well as to produce a severe crash pulse different from that in the offset test. The objective of this study was to analyze the safety performance of vehicles in the full width rigid barrier test (FWRB) and in the full width deformable barrier test (FWDB). In total, 12 vehicles were crashed in both configurations. Comparison of these tests to real world accident data was used to identify the crash barrier most representative of real world crashes. For all vehicles, the airbag visible times were later in the FWDB configuration. This was attributed to the attenuation of the initial acceleration peak, observed in FWRB tests, by the addition of the deformable element. These findings were in alignment with airbag triggering times seen in real world crash data. Also, the dummy loadings were slightly worse in FWDB compared to FWRB tests, which is possibly linked to the airbag firing and a more realistic loading of the vehicle crash structures in the FWDB configuration. Evaluations of the lower extremities have shown a general increasing of the tibia index with the crash pulse severity.
Various kinds of demerit point systems have been developed and implemented in European countries, aimed at tackling repeat offences in road transport by acting as a deterrent and providing sanctioning. The impact of a demerit point system on the number of crashes is often reported to be significant, but temporary. The objective of the EU BestPoint project was to establish a set of recommended practices that would result in a more effective and sustainable contribution of demerit point systems to road safety. A high actual chance of losing the licence and a high perceived chance of losing the licence are basic prerequisites for the effective operation of demerit point systems. For measures applied within the context of a demerit point system, a four-step-approach is recommended: warning letter, driver improvement course, licence withdrawal, rehabilitation course. Further recommendations concern issues like points and offences, e.g. which offences should lead to points, target groups, and the administration of demerit point systems. The final result of the EU BestPoint project is a handbook (van Schagen & Machata, 2012) which provides a concise overview of all recommended practices. The presentation/paper outlines how sustainable safety improvements can be achieved if national demerit point systems are implemented and maintained according to the recommended practices. In addition, potential further steps towards an EU-wide demerit point system (cross-border exchange on points and/or offences) are presented.
The current paper reports on the results of a pilot study aiming to investigate the effect of mobile telephone use on the driving performance of 5 amateur and 5 professional drivers. Their driving acuity was tested through a driving simulator. Analysis and interpretation of the results occurred comparing the drivers' driving performance while talking, reading messages and writing a message on the mobile phone (intervention time) with the drivers' driving performance engaged in no activity (control time). The variables affected by the mobile phone were the "steering", the "lane offset" and the "duration of lane offset". Moreover, the drivers involved in a car crash in the last five years appeared to differ from those who were not involved in a crash in both "lane offset" and "following distance". The results of this pilot study will inform the design of a large experimental study on 50 professional and 50 amateur drivers.
Although the annual traffic accident statistics published by the national police is available in public, the detailed traffic accident data has not been released in Korea. Recently the Ministry of Land, Infrastructure and Transport recognized the importance of in-depth accident data to enhance road traffic safety and initiated a research project to establish a collection of the detailed accident data. The main objective of the project is a feasibility study to establish KIDAS (Korea In-Depth Accident Study). Within this project, three university hospitals which are located in mid-size cities have been selected to collect accident data. Annually, more than 500 cases of accidents have been collected from the in-patient's interviews and diagnosis. Unlike GIDAS (German In-Depth Accident Study), currently on-site investigation can"t be performed by the Korean police. The only available data is patient medical records, patient's description of accident circumstances and the damaged vehicle. Occasionally the police provide the accident investigation reports containing very brief information on accident causation and vehicle safety. In a first step, the concept of KIDAS is to adopt the format of iGLAD (Initiative for the Global Harmonization of Accident Data) for harmonization. Since the currently collected accident information is extremely limited compared with GIDAS, the other sources of data and calculations such as KNCAP vehicle data, pc-crash simulations, vehicle registration information, insurance company data are utilized to complete the iGLAD template. Results from KIDAS_iGLAD and the cases of assessment of active safety devices such as AEBS, ESC, and LDWS will be evaluated.
Road accidents are typically analyzed to address influences of human, vehicle, and environmental (primarily infrastructure) factors. A new methodology, based on a "Venn diagram" analysis, gives a broader perspective on the probable factors, and combinations of factors, contributing both to the occurrence of a crash and to sustaining injuries in that crash. The methodology was applied to 214 accidents on the Mumbai-Pune expressway. Factors contributing to accidents and injuries were addressed. The major human factors influencing accidents on this roadway were speeding (30%) and falling asleep (29%), while injuries were primarily due to lack of seat belt use (46%). The leading infrastructure factor for injuries was impact with a roadside manmade structure (28%), and the main vehicle factor for injuries was passenger compartment intrusion (73%). This methodology can help identify effective vehicle and infrastructure-related solutions for preventing accidents and mitigating injuries in India.
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.
Ruptures and dissections of the thoracic and abdominal aortic vessel caused by traffic accidents are rare but potentially life-threatening injuries. They can occur by blunt trauma via seat belt or dashboard injury. The study aimed at evaluating the overall mortality, morbidity, neurological disorders, and differences in operative procedures of open repair and stenting. It shows that, with a change and improvement in diagnostic tools and surgical approach, mortality and morbidity of blunt aortic injuries were significantly reduced. Still an immediate life-threatening injury early diagnosis via multiple-slice and scans and surgical repair with minimally invasive stents showed excellent short-time results for selected patients.
Assessment of the effectiveness of Intersection Assistance Systems at urban and rural accident sites
(2015)
An Intersection Collision Avoidance System is a promising safety system for accident avoidance or injury mitigation at junctions. However, there is still a lack of evidence of the effectiveness, due to the missing real accident data concerning Advanced Driver Assistance Systems. The objective of this study is the assessment of the effectiveness of an Intersection Collision Avoidance System based on real accidents. The method used is called virtual pre-crash simulation. Accidents at junctions were reconstructed by using the numerical simulation software PC-Crashâ„¢. This first simulation is called the baseline simulation. In a second step the vehicles of these accidents were equipped with an Intersection Collision Avoidance System and simulated again. The second simulation is called the system simulation. In the system simulation two different sensors and four different intervention strategies were used, based on a time-to-collision approach. The effectiveness of Intersection Collision Avoidance System has been evaluated by using an assessment function. On average 9% of the reviewed junction accidents could have been avoided within the system simulations. The other simulation results clearly showed a change in the principal direction of force, delta-v and reduction of the injury severity.
The main focus of the benefit estimation of advanced safety systems with a warning interface by simulation is on the driver. The driver is the only link between the algorithm of the safety system and the vehicle, which makes the setup of a driver model for such simulations very important. This paper describes an approach for the use of a statistical driver model in simulation. It also gives an outlook on further work on this topic. The build-up process of the model suffices with a distribution of reaction times and a distribution of reaction intensities. Both were combined in different scenarios for every driver. Each scenario has then a specific probability to occur. To use the statistical driver model, every accident scene has to be simulated with each driver scenario (combinations of reaction times and intensities). The results of the simulations are then combined regarding the probabilities to occur, which leads to an overall estimated benefit of the specific system. The model works with one or more equipped participants and delivers a range for the benefit of advanced safety systems with warning interfaces.
Event data recorders (EDRs) are a valuable tool for in-depth investigation of traffic accidents. EDRs are installed on the airbag control module (ACM) to record vehicle and occupant information before, during, and after a crash event. This study evaluates EDR characteristics and aims at better understanding EDR performance for the improvement of accident reconstruction with more reliable and accurate information regarding accidents. The analysis is based on six crash tests with corresponding EDR datasets.
The study aimed at estimating the impact of pedelecs (with an assumed higher speed than bicycles) on the traffic accident severity in Germany for different penetration rates. The analysis shows that in many real situations (68%) an electrical support of bicycles has no influence on the sequence of accident events. Taking into account a number of unreported "single bicycle accidents", the adoption of similar traffic behavior and similar age distribution, the authors determined a shift of 400 former slightly to seriously injured cyclists in Germany per year. Overall this would be an increase of approximately 2.3% in case of 10% of pedelec penetration with the pessimistic assumption of 10 km/h speed increase although first natural driving studies predict a much lower average speed increase of pedelecs. The hypothesis verbalized in the initial question whether a higher distribution of pedelecs will result in more severe accidents in Germany is not verified. The study shows that electrical support didn"t result in higher collision speed in general. In many accident situations, the speed of pedelecs has only a minor influence on the accident severity. Further research focusing on a possible change of driver behavior especially in new target groups (elderly people) will be needed.
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.
In North America, frontal crash tests in both the regulatory environment and consumer-based safety rating schemes have historically been based on full-width and moderate-overlap (40%) vehicle to barrier impacts. The combination of improved seat-belt technologies, notably belt tensioning and load limiting systems, together with advanced airbags, has proven very effective in providing occupant protection in these crash modes. Recently, however, concern has been raised over the contribution of narrower frontal impacts, involving primarily the vehicle corners, to the incidence of fatality and serious injury as a result of the potential for increased occupant compartment intrusion and performance limitations of current restraint systems. Drawing on data documented in the National Automotive Sampling System (NASS)/ Crashworthiness Data System (CDS) for calendar years 1999 to 2012, the present study examines the characteristics of existing and proposed corner crash test configurations, and the nature of real-world collisions that approximate the test environments. In this analysis, particular emphasis is placed on crash pulse information extracted from vehicle-based event data recorders (EDR's).
Analysis of pedestrian leg contacts and distribution of contact points across the vehicle front
(2015)
Determining the risk to pedestrians that are impacted by areas of the front bumper not currently regulated in type-approval testing requires an understanding of the target population and the injury risk posed by the edges of the bumper. National statistics show that approximately 10% of all accident casualties are pedestrians, with 20% to 30% of these pedestrian casualties being killed or seriously injured. However, the contact position across the front of the bumper is not recorded in national statistics and so in-depth accident databases (OTS, UK and GIDAS, Germany) were used to examine injury risk in greater detail. The results showed that some injury types and severities of injuries appear to peak around the bumper edges. Although there are sometimes inconsistencies in the data, generally there is no evidence to suggest that the edges of the bumper are less likely to be contacted or cause injury.
Many safety-relevant tasks in control or diagnostics require binary choices such as "conflict versus separation" in air traffic control, "normal versus pathological" when interpreting x-ray pictures, or "permitted versus forbidden" when inspecting airport security scans. Deciders often are uncertain, but nevertheless required to decide between two alternatives, that is, they have not only to decide upon an action, but also about the admissible level of uncertainty. If the accepted level of judgment certainty is not taken into account, the sequence of decisions does not capture the full picture of the underlying decision process. Differences in judgment certainty are relevant, because they reflect not only the adequacy of the human-machine interface that is evaluated, but also the differences in expertise of the decider and the requirements of the actual situation or task. Therefore, capturing both judgment certainty and discrimination performance is essential. A comparison of different human-machine-interfaces (for air traffic control) is used to illustrate a methodological approach, which allows for integrated analyses of decision processes based on receiver-operator-characteristics and practical guidelines for the evaluation of human-machine-interfaces for safety-relevant operation procedures are provided.
Detailed anthropometric data of pregnant women have been collected and used in the development of a computational model of the pregnant occupant model "Expecting". The model is complete with a finite element uterus and multi-body fetus, which is a novel feature in the models of this kind. The computational pregnant occupant model has been validated and used to simulate a range of impacts. The strains developed in the utero-placental interface are used as the main criteria for fetus safety. Stress distributions due to inertial loading of the fetus on the utero-placental interface play a role on the strain levels. Inclusion of fetus model is shown to significantly affect the strain levels in the utero-placental interface. This series of studies has led to the design of seatbelt features specifically for the pregnant women to enable them use the seatbelt correctly and comfortably.
SEEKING is looking for answers regarding electric powered bicycles and their relation to traffic safety issues. Does a cyclist need "E"? Is it as risky as riding a moped or are E-bikes creating conflicts with other cyclists? The project described herein, funded by the Austrian Ministry of Transport, has the aim of seeking answers to these hot topics. The SEEKING-team shows an in-depth investigation of vehicle dynamic sensing, together with subjective feedback of test riders to detect similarities and differences between conventional cycling and E-biking. Following an overview on the international status quo, measurement runs and their analyses are performed to find a set of preventative measures to make (E-)biking safer. A specific focus is the detection of curve handling, stopping and acceleration phases as well as conflict studies on course-based test rides and "real world" tests on cycling paths (naturalistic riding).
In general the passive safety capability is much greater in newer versus older cars due to the stiff compartment preventing intrusion in severe collisions. However, the stiffer structure which increases the deceleration can lead to a change in injury patterns. In order to analyse possible injury mechanisms for thoracic and lumbar spine injuries, data from the German Inâ€Depth Accident Study (GIDAS) were used in this study. A twoâ€step approach of statistical and caseâ€byâ€case analysis was applied for this investigation. In total 4,289 collisions were selected involving 8,844 vehicles, 5,765 injured persons and 9,468 coded injuries. Thoracic and lumbar spine injuries such as burst, compression or dislocation fractures as well as soft tissue injuries were found to occur in frontal impacts even without intrusion to the passenger compartment. If a MAIS 2+ injury occurred, in 15% of the cases a thoracic and/or lumbar spine injury is included. Considering AIS 2+ thoracic and lumbar spine, most injuries were fractures and occurred in the lumbar spine area. From the case by case analyses it can be concluded that lumbar spine fractures occur in accidents without the engagement of longitudinals, lateral loading to the occupant and/or very severe accidents with MAIS being much higher than the spine AIS.
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.
Improving the security of critical road infrastructure is a major task for owners and operators of tunnels and bridges in the European TEN-T Network (Trans-European Networks of Transport) (European Parliament and Council 1996). Up to now, there has not been a systematic procedure for identifying and assessing critical infrastructure objects and selecting appropriate protection measures. The EC FP7 project SeRoN for the first time presents an innovative methodology in order to support road owners and operators in handling this complex task. This paper describes the methodology and project results in detail by giving an introduction into its practical application.
This study aimed at prediction of long bone fractures and assessment of lower extremity injury mechanisms in real world passenger car to pedestrian collision. For this purpose, two pedestrian accident cases with detail recorded lower limb injuries were reconstructed via combining MBS (Multi-body system) and FE (Finite element) methods. The code of PC Crash was used to determine the boundary conditions before collision, and then MBS models were used to reproduce the pedestrian kinematics and injuries during crash. Furthermore, a validated lower limb FE model was chosen to conduct reconstruction of injuries and prediction of long bone fracture via physical parameters of von Mises stress and bending moment. The injury outcomes from simulations were compared with hospital recorded injury data and the same long bone fracture patterns and positions can be observed. Moreover, the calculated long bone fracture tolerance corresponded to the outcome from cadaver tests. The result shows that FE model is capable to reproduce the dynamic injury process and is an effective tool to predict the risk of long bone fractures.
Cycling supports the independence and health of the aging population. However, elderly cyclists have an increased injury risk. The majority of injured cyclists is victim of a single-sided accident, an accident in which there is no other party involved. The aim of the project "Safe and Aware on the bicycle" is to develop guidelines for an advisory system that is useful in preventing single-sided accidents. This system is able to support the elderly cyclist; enabling the cyclist to timely adapt his cycling behaviour and improve cycling safety and comfort. For the development of such advisory system the causes of singles accidents and the wishes of the elderly cyclist must be known. First step to obtain this insight was a literature survey and an GIDAS research. Unfortunately accidentology research with GIDAS did not give the full understanding of the pre-crash situations and (especially the behaviour related) factors leading to the accident. The second step was consultation of elderly cyclist through a questionnaire (n=800), in-depth interviews (n=12) and focus group sessions (n=15). This offered complementary information and a much better understanding of the behavioural aspects. Results concern the behaviour in traffic and identify specific physical (i.e. problems looking backwards over the shoulder) and mental issues. Furthermore, the needs and wishes for support in specific cycling situations were identified. In conclusion; The GIDAS results together with the information obtained contacting the elderly cyclists enabled setting up requirements for an advisory system, which is useful in preventing single-sided accidents.
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.
This study aimed at comparing head Wrap Around Distance (WAD) of Vulnerable Road User (VRU) obtained from the German in-depth Accident Database (GIDAS), the China in-depth Accident Database (CIDAS) and the Japanese in-depth Accident Database (ITARDA micro). Cumulative distribution of WAD of pedestrian and cyclist were obtained for each database (AIS2+) showing that WAD of cyclists were larger than the ones of pedestrians. Comparing three regions, the 50%tile WAD of GIDAS was larger than that of both Asian accident databases. Using linear regression that might predict WAD of pedestrians and cyclists from Impact speed and VRU height, WADs were calculated to be 206cm/219cm (Pedestrian/Cyclist) for GIDAS, 170cm/192cm for CIDAS and 211cm/235cm for ITARDA. In addition, this study may be helpful for reconsideration of WAD measurement alignment between accident reconstruction and test procedures.
Pedestrians represent about 20% of the overall fatalities in Europe- road traffic accidents. In this paper a methodology is proposed to understand why the numbers are so high, especially in the south of Europe and particularly in Portugal, . First a detailed statistical analysis using Ordinal Logistic Regression model (OLR) was applied to the gathered data from all Portuguese accidents with victims in the period 2010-2012. In a second stage accident reconstruction computational techniques using pedestrian biomechanical models are used to evaluate the accident conditions that lead to the injuries, such as the speed and the impact location. For biomechanical injury criterions, the AIS (Abbreviated Injury Scale), the HIC (Head Injury Criterion) and other injury criterions based on the resulting accelerations in the pedestrian's body are used. The statistical model reported that there were several predictors that significantly influenced the pedestrian injury severity in the event of a road accident, such as Pedestrian's age, Pedestrian's gender, Vehicle Design/Category or Driver's gender. The use of injury scales and biomechanical criterions in in-depth investigation of road accidents, such as AIS, can significantly improve the quality of the reconstruction process.
The current Brussels EU Regulation No. 1235/2011, valid from May 30, 2012, has introduced an European Tyre Label with wet grip index G classes from A to G for passenger car tyres C1, light commercial vehicles tyres C2 and heavy truck- and bus tyres C3. Every wet grip class for each vehicle category has a defined band of numerical values for the wet grip index G. The legislated wet grip values G in this EU- Regulation are very low. The measured braking distances and corresponding impact speeds of the test vehicles are showing very critical results. Regulation No. 1235/2011 of the European Parliament and the Council for Type Approval of Vehicles (EU) should be changed in such a way, that for C1-tyres (normal passenger cars tyres) the minimum wet grip index G is 1.25. All C2-tyres (light commercial vehicles tyres) should at least meet a minimum wet grip index of G = 1.1. All C3-tyres (heavy trucks and buses tyres) should at least meet a minimum wet grip index of G = 0.95. Due to the missing lower limits for G in the wet grip class F for C1, C2 and C3 tyres according to Commission Regulation (EU) No. 1235/2011, officially valid from 30 May 2012, a tyre-to-road coefficient of adhesion in the extreme of 0 (zero) is legally permitted. This is an apparent flaw in above cited EU Regulation, which causes a potential danger to the road traffic safety for all motor vehicles in Europe with such tyres. The wet grip class F has to be removed urgently from said EURegulation, since a direct liability of the responsible EU-Commission can not be excluded.
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.
Today's volumes of traffic require more and more responsibility from each individual road user in their interactions. Those who drive motor vehicles have the singular obligation to minimise the risk of accidents and hence the severity of injuries, particularly with a view to the most vulnerable road users such as motor bikes, bikes and pedestrians. Since responsible and pro-active driving depends first and foremost on the visual information relayed by our eyes and the visual channel this requires good command of the traffic and all-round visibility from our driver's seat. Granted that human error can never be fully excluded, improving visibility around the car is nevertheless an urgent priority. To do so, we need to rate visibility in the most realistic driving situations. Since the existing visibility metrics and methodology are not applicable to real-life driving situations, this study aimed at developing a new visibility rating methodology based on real-life accident scenarios. On the basis of the cases documented by the accident research project, this study analysed criteria indicative of diminishing visibility on the one hand and revealing some peculiarities in connection with the visibility issue on the other. Based on the above, the project set out to develop a rating methodology allowing to assess all-round visibility in various road situations taking into account both driver and road geometries. In this context, the assessment of visibility while turning a corner, crossing an intersection and joining traffic on a major road (priority through route) is of major importance. The first tests have shown that critical situations can be avoided by adapting the relevant geometries and technical solutions and that significant improvements of road safety can be derived therefrom.
For the estimation of the benefit and effect of innovative Driver Assistance Systems (DAS) on the collision positions and by association on the accident severity, together with the economic benefit, it becomes necessary to simulate and evaluate a variety of virtual accidents with different start values (e.g. initial speed). Taken into account the effort necessary for a manual reconstruction, only an automated crash computation can be considered for this task. This paper explains the development of an automated crash computation based on GIDAS. The focus will be on the design of the virtual vehicle models, the method of the crash computation as well as exemplary applications of the automated crash computation. For the first time an automated crash computation of passenger car accidents has been realized. Using the automated crash computation different tasks within the field of vehicle safety can be elaborated. This includes, for example, the calculation of specific accident parameters (such as EES or delta-V) for various accident constellations and the estimation of the economic benefit of DAS using IRFs (Injury Risk Functions).
The project UR:BAN "Cognitive assistance (KA)" aims at developing future assistance systems providing improved performance in complex city traffic. New state-of-the-art panoramic sensor technologies now allow comprehensive monitoring and evaluation of the vehicle environment. In order to improve protection of vulnerable road users such as pedestrians and cyclists, a particular objective of UR:BAN is the evaluation and prediction of their behaviour and actions. The objective of subproject "WER" is development support by providing quantitative estimates of traffic collisions at the very start and predict potential in terms of optimized accident avoidance and reduction of injury severity. For this purpose an integrated computer simulation toolkit is being devised based on real world accidents (GIDAS as well as video documented accidents), allowing the prediction of potential effectiveness and future benefit of assistance systems in this accident scenario. Subsequently, this toolkit may be used for optimizing the design of implemented assistance systems for improved effectiveness.
The changed focus in vehicle safety technology from secondary to primary safety systems need to evolve new methods to investigate accidents, high critical, critical and normal driving situations. Current Naturalistic Driving Studies mostly use vehicles that are highly equipped with additional measuring devices, video cameras, recording technology, and sensors. These equipped fleets are very expensive regarding the setup and administration of the study. Due to the great rarity of crashes it is additionally necessary to have a high distribution and a homogeneous distribution of subject groups. At the end all these facts are leading to a very expensive study with a manageable number of data. Smartphones are becoming more and more popular not only for younger people. Contrary to traditional mobile phones they are mostly equipped with sensors for acceleration and yaw rates, GPS modules as well as cameras in high definition resolution. Additionally they have high-performance processors that enable the execution of CPU-intensive tools directly on the phone. The wide distribution of these smartphones enables researchers to get high numbers of users for such studies. The paper shows and demonstrates a software app for smartphones that is able to record different driving situations up to crashes. Therefore all relevant parameter from the sensors, camera and GPS device are saved for a given duration if the event was triggered. The complete configuration is independently adjustable to the relevant driver and all events were sent automatically to the research institute for a further process. Direct after the event, interviews with the driver can be done and important data regarding the event itself are documented. The presentation shows the methodology and gives a demonstration of the working progress as well as first results and examples of the current study. In the discussion the advantages of this method will be discussed and compared with the disadvantages. The paper shows an alternative method to investigate real accident and incident data. This method is thereby highly cost efficient and comparable with existing methods for benefit estimation.