Filtern
Erscheinungsjahr
Dokumenttyp
- Buch (Monographie) (634)
- Konferenzveröffentlichung (405)
- Wissenschaftlicher Artikel (92)
- Bericht (38)
- Teil eines Buches (Kapitel) (14)
- Arbeitspapier (14)
Sprache
- Deutsch (859)
- Englisch (337)
- Mehrsprachig (1)
Schlagworte
- Deutschland (634)
- Germany (633)
- Forschungsbericht (461)
- Research report (459)
- Conference (331)
- Konferenz (327)
- Safety (243)
- Bewertung (242)
- Sicherheit (240)
- Accident (234)
- Unfall (234)
- Evaluation (assessment) (193)
- Test (162)
- Versuch (156)
- Injury (129)
- Verletzung (126)
- Measurement (118)
- Messung (118)
- Method (114)
- Statistics (113)
- Verfahren (112)
- Prüfverfahren (111)
- Statistik (111)
- Test method (106)
- Verhalten (103)
- Behaviour (100)
- Richtlinien (98)
- Specifications (97)
- Driver (95)
- Analyse (math) (94)
- Analysis (math) (92)
- Fahrer (92)
- Simulation (88)
- Unfallrekonstruktion (84)
- Fahrzeug (81)
- Berechnung (80)
- Vehicle (80)
- Calculation (79)
- Unfallverhütung (77)
- Verbesserung (76)
- Improvement (75)
- Planung (70)
- Interview (69)
- Planning (69)
- Autobahn (68)
- Risiko (68)
- Verkehr (68)
- Traffic (67)
- Risk (66)
- Fußgänger (64)
- Pedestrian (64)
- Fatality (63)
- Tödlicher Unfall (63)
- Bridge (62)
- Datenbank (61)
- Car (60)
- Datenerfassung (60)
- Schweregrad (Unfall, Verletzung) (60)
- Brücke (59)
- Accident prevention (58)
- Leistungsfähigkeit (allg) (58)
- Severity (accid, injury) (58)
- Data acquisition (57)
- Geschwindigkeit (57)
- Efficiency (56)
- Speed (56)
- Development (55)
- Reconstruction (accid) (55)
- injury) (55)
- Entwicklung (54)
- Schweregrad (Unfall (54)
- Verletzung) (54)
- Cause (51)
- Tunnel (51)
- Ursache (51)
- Prevention (50)
- Radfahrer (50)
- Cyclist (49)
- Highway (48)
- Straße (47)
- Fahrzeugführung (46)
- On the spot accident investigation (45)
- Severity (accid (45)
- Untersuchung am Unfallort (44)
- Anfahrversuch (43)
- Impact study (43)
- Collision (42)
- Europa (42)
- Europe (42)
- Evaluation (42)
- Bemessung (41)
- Benutzung (41)
- Prognose (41)
- Zusammenstoß (41)
- Driving (veh) (40)
- Fahrerassistenzsystem (40)
- Motorcyclist (40)
- Motorradfahrer (40)
- Motorway (40)
- Passives Sicherheitssystem (40)
- Pkw (40)
- Use (40)
- Accident rate (39)
- Education (39)
- Modification (39)
- Rechenmodell (39)
- Belastung (38)
- Data bank (38)
- Load (38)
- Lorry (38)
- Main road (38)
- Unfallhäufigkeit (38)
- Verkehrssteuerung (38)
- Verkehrsstärke (38)
- Driver assistance system (37)
- Durability (37)
- Erziehung (37)
- Fahranfänger (37)
- Fernverkehrsstraße (37)
- Forecast (37)
- Stadt (37)
- Urban area (37)
- Verkehrserhebung (37)
- Verminderung (37)
- Wirksamkeitsuntersuchung (37)
- Dauerhaftigkeit (36)
- Insasse (36)
- Kind (36)
- Mathematical model (36)
- Modell (36)
- Organisation (36)
- Recently qualified driver (36)
- Traffic control (36)
- Traffic flow (36)
- Alte Leute (35)
- Child (35)
- Veränderung (35)
- Decrease (34)
- Design (overall design) (34)
- Highway design (34)
- Kosten (34)
- Old people (34)
- Passive safety system (34)
- Road network (34)
- Straßenentwurf (34)
- Straßennetz (34)
- Lkw (33)
- Surfacing (33)
- Traffic count (33)
- Attitude (psychol) (32)
- Frontalzusammenstoß (32)
- Information (32)
- Jugendlicher (32)
- Vehicle occupant (32)
- Adolescent (31)
- Condition survey (31)
- Cost (31)
- Driving aptitude (31)
- Head on collision (31)
- Skill (road user) (31)
- Verkehrsfluss (31)
- Zustandsbewertung (31)
- Active safety system (30)
- Ausrüstung (30)
- Decke (Straße) (30)
- Einstellung (psychol) (30)
- Equipment (30)
- Impact test (veh) (30)
- Knotenpunkt (30)
- Sachschaden (30)
- Accident reconstruction (29)
- Administration (29)
- Bituminous mixture (29)
- Bituminöses Mischgut (29)
- Concrete (29)
- Damage (29)
- Erste Hilfe (29)
- Festigkeit (29)
- Gestaltung (29)
- Aktives Sicherheitssystem (28)
- Beton (28)
- Driver training (28)
- Emission (28)
- Motorrad (28)
- Risikobewertung (28)
- First aid (27)
- Junction (27)
- Layout (27)
- Legislation (27)
- Model (not math) (27)
- Motorcycle (27)
- Norm (tech) (27)
- Road construction (27)
- Straßenbau (27)
- Verwaltung (27)
- Deformation (26)
- Fahrausbildung (26)
- Freeway (26)
- Gesetzgebung (26)
- Instandsetzung (26)
- Lebenszyklus (26)
- Numerisches Modell (26)
- Repair (26)
- Risk assessment (26)
- Strength (mater) (26)
- Traffic concentration (26)
- Tragfähigkeit (26)
- Bearing capacity (25)
- Qualitätssicherung (25)
- Verformung (25)
- Verkehrsinfrastruktur (25)
- Digital model (24)
- Fahrgeschicklichkeit (24)
- Maintenance (24)
- Quality assurance (24)
- Unterhaltung (24)
- Error (23)
- Information documentation (23)
- Kontrolle (23)
- Landstraße (23)
- Oberfläche (23)
- Surface (23)
- Construction (22)
- Forschungsarbeit (22)
- Life cycle (22)
- Spannbeton (22)
- Specification (standard) (22)
- Surveillance (22)
- Wirtschaftlichkeit (22)
- Bindemittel (21)
- Binder (21)
- Database (21)
- Economic efficiency (21)
- PKW (21)
- Prestressed concrete (21)
- Temperatur (21)
- Verhütung (21)
- Verkehrsteilnehmer (21)
- Bau (20)
- Baustelle (20)
- Betonstraße (Oberbau) (20)
- Cost benefit analysis (20)
- Fire (20)
- Grenzwert (20)
- Limit (20)
- Rigid pavement (20)
- Road user (20)
- Rural road (20)
- Sicherheitsgurt (20)
- Temperature (20)
- Transport infrastructure (20)
- Wasser (20)
- Water (20)
- Anthropometric dummy (19)
- Biomechanics (19)
- Biomechanik (19)
- Cracking (19)
- Eigenschaft (19)
- Fehler (19)
- Head (19)
- Kopf (19)
- Quality (19)
- Qualität (19)
- Rissbildung (19)
- Straßenverkehrsrecht (19)
- Technologie (19)
- Technology (19)
- Traffic regulations (19)
- Alter (18)
- Before and after study (18)
- Bitumen (18)
- Boden (18)
- Construction site (18)
- Environment (18)
- Fahrleistung (18)
- Griffigkeit (18)
- Metal bridge (18)
- Organization (association) (18)
- Perception (18)
- Pollutant (18)
- Properties (18)
- Safety belt (18)
- Seitlicher Zusammenstoß (18)
- Standardisierung (18)
- Straßenverkehr (18)
- Traffic lane (18)
- Umwelt (18)
- Vehicle mile (18)
- Vorher Nachher Untersuchung (18)
- Wahrnehmung (18)
- Witterung (18)
- Age (17)
- Articulated vehicle (17)
- Emergency (17)
- Fahrzeugsitz (17)
- Gelenkfahrzeug (17)
- Medical aspects (17)
- Medizinische Gesichtspunkte (17)
- Mobilität (17)
- Notfall (17)
- Reinforced concrete (17)
- Reinforcement (in mater) (17)
- Research project (17)
- Side impact (17)
- Skidding resistance (17)
- Soil (17)
- Standardization (17)
- Wirtschaftlichkeitsrechnung (17)
- Bremsung (16)
- Comprehension (16)
- Droge (16)
- Drugs (16)
- Experience (human) (16)
- Fahrstreifen (16)
- Fahrtauglichkeit (16)
- Flexible pavement (16)
- Führerschein (16)
- Kapazität (Straße) (16)
- Lärm (16)
- Schutzhelm (16)
- Seat (veh) (16)
- Sensor (16)
- Software (16)
- Stahlbeton (16)
- Traffic restraint (16)
- Weather (16)
- Air pollution (15)
- Airbag (15)
- Asphaltstraße (Oberbau) (15)
- Bauwerk (15)
- Bewehrung (15)
- Braking (15)
- Communication (15)
- Crash helmet (15)
- Detection (15)
- Drunkenness (15)
- Dummy (15)
- EU (15)
- Engineering structure (15)
- Erfahrung (menschl) (15)
- Expert opinion (15)
- Gutachten (15)
- Leg (human) (15)
- Luftverunreinigung (15)
- Mobility (15)
- Noise (15)
- Organization (15)
- Schadstoff (15)
- Stahlbrücke (15)
- Telematik (15)
- Trunkenheit (15)
- Verkehrsbeschränkung (15)
- Auffahrunfall (14)
- Automatisch (14)
- Baustoff (14)
- Bicycle (14)
- Bus (14)
- Classification (14)
- Datenverarbeitung (14)
- Decision process (14)
- Entscheidungsprozess (14)
- Experimental road (14)
- Fahrrad (14)
- Fahrstabilität (14)
- Güterverkehr (14)
- Human factor (14)
- International (14)
- Klassifizierung (14)
- Kommunikation (14)
- Krankenhaus (14)
- Level of service (14)
- Medizinische Untersuchung (14)
- Menschlicher Faktor (14)
- Psychologie (14)
- Psychology (14)
- Rear end collision (14)
- Vehicle handling (14)
- Verkehrsqualität (14)
- Winter maintenance (14)
- Winterdienst (14)
- Brustkorb (13)
- Data processing (13)
- Ermüdung (mater) (13)
- Fatigue (mater) (13)
- Hospital (13)
- Laboratorium (13)
- Lichtsignal (13)
- Material (constr) (13)
- Medical examination (13)
- Messgerät (13)
- Nachhaltige Entwicklung (13)
- Personal (13)
- Personnel (13)
- Sound (13)
- Sustainability (13)
- Telematics (13)
- Traffic density (13)
- Traffic signal (13)
- Vereinigtes Königreich (13)
- Verständnis (13)
- Versuchsstrecke (13)
- Überschlagen (13)
- Aggregate (12)
- Apparatus (measuring) (12)
- Beam (12)
- Deicing (12)
- Delivery vehicle (12)
- Driver information (12)
- Finite element method (12)
- Krankheit (12)
- Nacht (12)
- Night (12)
- Oberflächentextur (12)
- Orthotropic plate (12)
- Publicity (12)
- Schall (12)
- School (12)
- Schule (12)
- Stability (12)
- Time (12)
- Unfallschwerpunkt (12)
- Sichtbarkeit (12)
- Werbung (12)
- Zuschlagstoff (12)
- Accident black spot (11)
- Air bag (restraint system) (11)
- Austria (11)
- Behinderter (11)
- Bein (menschl) (11)
- Capacity (road, footway) (11)
- Carriageway marking (11)
- Cement (11)
- Driving licence (11)
- Fahrbahn (11)
- Fahrbahnmarkierung (11)
- Fahrerinformation (11)
- Feinstaub (11)
- Feuer (11)
- Impact test (11)
- Interior (veh) (11)
- Jahr (11)
- Japan (11)
- Nitrogen oxide (11)
- Ort (Position) (11)
- Overturning (veh) (11)
- Pavement (11)
- Psychological aspects (11)
- Psychologische Gesichtspunkte (11)
- Radweg (11)
- Stadtplanung (11)
- Standfestigkeit (11)
- Steifigkeit (11)
- Thorax (11)
- Town planning (11)
- USA (11)
- Zement (11)
- Österreich (11)
- Antikollisionssystem (10)
- Aufmerksamkeit (10)
- Auftaumittel (10)
- Automatic (10)
- Balken (10)
- Beinahe Unfall (10)
- Brand (10)
- Bremse (10)
- Chemical analysis (10)
- Chemische Analyse (10)
- Cycle track (10)
- Digitale Bildverarbeitung (10)
- Driving (10)
- Driving test (10)
- Einsatzfahrzeug (10)
- Emergency vehicle (10)
- Fahreignung (10)
- Fahrprüfung (10)
- Fahrsimulator (10)
- Fahrzeuginnenraum (10)
- Gemeindeverwaltung (10)
- Illness (10)
- In situ (10)
- Laboratory (not an organization) (10)
- Local authority (10)
- Location (10)
- Near miss (10)
- Oberbau (10)
- Occupation (10)
- Particulate matter (10)
- Pavement Management System (10)
- Policy (10)
- Politik (10)
- Psychological examination (10)
- Psychologische Untersuchung (10)
- Public transport (10)
- Reaction (human) (10)
- Reaktionsverhalten (10)
- Residential area (10)
- Sample (stat) (10)
- Sichtbarkeit (10)
- Stichprobe (10)
- Stickoxid (10)
- Stiffness (10)
- Surface texture (10)
- Traffic engineering (10)
- United Kingdom (10)
- Verkehrszusammensetzung (10)
- Wohngebiet (10)
- Zeit (10)
- Öffentlicher Verkehr (10)
- Adaptation (psychol) (9)
- Anpassung (psychol) (9)
- Attention (9)
- Bevölkerung (9)
- Blood alcohol content (9)
- Blutalkoholgehalt (9)
- Brake (9)
- Coefficient of friction (9)
- Detektion (9)
- Durchlässigkeit (9)
- Dynamics (9)
- Dynamik (9)
- Einbau (9)
- Eye movement (9)
- Front (9)
- Gesetzesübertretung (9)
- Highway traffic (9)
- Image processing (9)
- Immission (9)
- JDTV (9)
- Konzentration (chem) (9)
- Kunststoff (9)
- Laying (9)
- Manufacture (9)
- Mechanik (9)
- Methode der finiten Elemente (9)
- Permeability (9)
- Probability (9)
- Querschnitt (9)
- Reibungsbeiwert (9)
- Road traffic (9)
- Schutzeinrichtung (9)
- Shear (9)
- Simulator (driving) (9)
- Traffic composition (9)
- Verbundbrücke (9)
- Verkehrsuntersuchung (9)
- Wahrscheinlichkeit (9)
- Wearing course (9)
- Wirbelsäule (9)
- Year (9)
- Abbiegen (8)
- Ageing (8)
- Alignment (8)
- Anti locking device (8)
- Arzneimittel (8)
- Audit (8)
- Augenbewegungen (8)
- Bend (road) (8)
- Berufsausübung (8)
- Blood (8)
- Blut (8)
- Bridge deck (8)
- Bruch (mech) (8)
- CEN (8)
- Carriageway (8)
- Cervical vertebrae (8)
- Collision avoidance system (8)
- Compliance (specif) (8)
- Composite bridge (8)
- Concentration (chem) (8)
- Continuous (8)
- Cross section (8)
- Deckschicht (8)
- Disabled person (8)
- Ebenheit (8)
- Ecobalance (8)
- Electronic stability program (8)
- Financing (8)
- Finanzierung (8)
- Fracture (bone) (8)
- Frau (8)
- Fuge (8)
- Geschichte (8)
- Goods traffic (8)
- Government (national) (8)
- Halswirbel (8)
- Herstellung (8)
- History (8)
- Innenstadt (8)
- Intelligent transport system (8)
- Intelligentes Transportsystem (8)
- Joint (structural) (8)
- Knochenbruch (8)
- Kontinuierlich (8)
- Leistungsfähigkeit (Fahrer) (8)
- Linienführung (8)
- Mechanics (8)
- Medication (8)
- Offence (8)
- Offender (8)
- Orthotrope Fahrbahntafel (8)
- Personality (8)
- Persönlichkeit (8)
- Plastic material (8)
- Pollution concentration (8)
- Population (8)
- Rechtsübertreter (8)
- Recycling (8)
- Rehabilitation (8)
- Reinforcement (gen) (8)
- Severity (acid (8)
- Spreading (8)
- Straßenkurve (8)
- Stress (psychol) (8)
- Town centre (8)
- Vegetation (8)
- Vehicle regulations (8)
- Verarbeitbarkeit (8)
- Verkehrsablauf (8)
- Verstärkung (allg) (8)
- Weight (8)
- Wet road (8)
- Workability (8)
- Ökobilanz (8)
- Abdichtung (7)
- Accompanied driving (7)
- Alterung (mater) (7)
- Annual average daily traffic (7)
- Antiblockiereinrichtung (7)
- Asphaltoberbau (7)
- Auftrag (7)
- Begleitetes Fahren (7)
- Betriebshof (7)
- Brückenbelag (7)
- China (7)
- Contract (7)
- Eins (7)
- Elektrofahrzeug (7)
- Elektronisches Stabilitätsprogramm (7)
- Empfindlichkeit (7)
- Entdeckung (7)
- Erdarbeiten (7)
- Fahrbahntafel (7)
- Fahrzeugabstand (7)
- France (7)
- Frankreich (7)
- Frequency (7)
- Führerschein Punktesystem (7)
- Genauigkeit (7)
- Geschwindigkeitsbeschränkung (7)
- Interchange (7)
- Knee (human) (7)
- Layer (7)
- Lieferfahrzeug (7)
- Mittelwert (7)
- Nasse Straße (7)
- Network (traffic) (7)
- One (7)
- Optimum (7)
- Overtaking (7)
- Penetration (7)
- Point demerit system (7)
- Pollution (7)
- Provisorisch (7)
- Quer (7)
- Rehabilitation (road user) (7)
- Reifen (7)
- Reproducibility (7)
- Reproduzierbarkeit (7)
- Retraining of drivers (7)
- Risk taking (7)
- Rural highway (7)
- Rückfalltäter (7)
- Safety fence (7)
- Sample (mater) (7)
- Schicht (7)
- Seite (7)
- Sensitivity (7)
- Spinal column (7)
- Stahl (7)
- Steel (7)
- Stress (7)
- Temporary (7)
- Traffic survey (7)
- Tragschicht (7)
- Transverse (7)
- Trend (stat) (7)
- Tunnel lining (7)
- Tunnelauskleidung (7)
- Tyre (7)
- Umweltschutz (7)
- Vehicle spacing (7)
- Verkehrsnetz (7)
- Verkehrsverflechtung (7)
- Verteilung (mater) (7)
- Vorschrifteneinhaltung (7)
- Waterproofing (7)
- Wear (7)
- Winkel (7)
- Wirkungsanalyse (7)
- Woman (7)
- Überholen (7)
- Absorption (6)
- Activity report (6)
- Alcohol (6)
- Alkohol (6)
- Angle (6)
- Anschlussstelle (6)
- Arbeitsgruppe (6)
- Auswahl (6)
- Average (6)
- Bepflanzung (6)
- Black ice (6)
- Bottleneck (6)
- Bridge surfacing (6)
- Case law (6)
- Case study (6)
- Compaction (6)
- Compatibility (6)
- Contact (tyre road) (6)
- Control (6)
- Defect (tech) (6)
- Deflection (6)
- Depot (transp) (6)
- Design (6)
- Diffusion (6)
- Distraction (6)
- Druck (6)
- Durchbiegung (6)
- Earthworks (6)
- Economics (6)
- Eindringung (6)
- Electric vehicle (6)
- Emission control (6)
- Emissionskontrolle (6)
- Engpass (6)
- Evakuierung (6)
- Evenness (6)
- Fahrernachschulung (6)
- Failure (6)
- Fallstudie (6)
- Fiber reinforced concrete (6)
- Gas (6)
- Gesundheit (6)
- Glatteis (6)
- Health (6)
- Human body (6)
- Impact sled (6)
- Incident detection (6)
- India (6)
- Indien (6)
- Information management (6)
- Knie (menschl) (6)
- Kompatibilität (6)
- Langfristig (6)
- Lenken (Fahrzeug) (6)
- Life-cycle (6)
- Long term (6)
- Market (6)
- Markt (6)
- Menschlicher Körper (6)
- Merging traffic (6)
- Moisture content (6)
- Netherlands (6)
- Niederlande (6)
- Nutzwertanalyse (6)
- Platte (6)
- Portugal (6)
- Post crash (6)
- Pressure (6)
- Rechtsprechung (6)
- Recidivist (6)
- Recycling (mater) (6)
- Regressionsanalyse (6)
- Roadbase (6)
- Schutz (6)
- Selection (6)
- Shock (6)
- Slab (6)
- Sociology (6)
- Soziologie (6)
- Spannung (mater) (6)
- Speed limit (6)
- Spurrinne (6)
- Steering (process) (6)
- Straßenverkehrstechnik (6)
- Stress (in material) (6)
- Tag (24 Stunden) (6)
- Technische Vorschriften (Kraftfahrzeug) (6)
- Theorie (6)
- Theory (6)
- Tätigkeitsbericht (6)
- Value analysis (6)
- Variable message sign (6)
- Verdichtung (6)
- Verkehrsstauung (6)
- Viscosity (6)
- Viskosität (6)
- Vorn (6)
- Wassergehalt (6)
- Wechselverkehrszeichen (6)
- Welding (6)
- Windschutzscheibe (6)
- Wirtschaft (6)
- Working group (6)
- Zeitreihe (stat) (6)
- Zusammensetzung (6)
- Ablenkung (psychol) (5)
- Abnutzung (5)
- Acceleration (5)
- Accessibility (5)
- Achslast (5)
- Adult (5)
- Aggression (psychol) (5)
- Akzeptanz (5)
- Analyse (Math) (5)
- Animal (5)
- Arbeitsbedingungen (5)
- Aufbereitungsanlage (5)
- Aufprallschlitten (5)
- Ausführungsfehler (5)
- Ausländer (5)
- Axle load (5)
- Ballungsgebiet (5)
- Bauweise (5)
- Beschichtung (5)
- Beschilderung (5)
- Beschleunigung (5)
- Betriebsverhalten (5)
- Blickfeld (5)
- Breite (5)
- Coach (5)
- Coating (5)
- Conurbation (5)
- Correlation (math, stat) (5)
- Cycling (5)
- Deformable barrier (impact test) (5)
- Depth (5)
- Distribution (gen) (5)
- Drainage (5)
- Einfahrt (5)
- Eingabedaten (5)
- Entwässerung (5)
- Environment protection (5)
- Ergonomics (5)
- Ergonomie (5)
- Erwachsener (5)
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Institut
- Sonstige (1197) (entfernen)
Aktive Systeme der passiven Fahrzeugsicherheit zum Fußgängerschutz, sogenannte crash-aktive Fußgängerschutzsysteme, werden seit 2005 zur Erfüllung der gesetzlichen Anforderungen (siehe Verordnung (EG) Nr. 78/2009 und 631/2009) in Serienfahrzeugen eingesetzt. Diese crash-aktiven Fußgängerschutzsysteme stellen im Gegensatz zu den rein passiven Systemen nur eine instationäre Lösung dar. Da die innerhalb der gesetzlichen Anforderungen definierten Testverfahren zur Bewertung stationärer Systeme entwickelt wurden, können derzeit mögliche Risiken instationärer Systeme nicht berücksichtigt werden. Im Rahmen dieses Forschungsprojektes soll ein Bewertungsverfahren für diese crash-aktiven Fußgängerschutzsysteme entwickelt werden, welches das reale Potential dieser Systeme möglichst gut wiedergibt. Basis hierfür soll eine umfangreiche Untersuchung zusätzlicher Risiken bilden. Die hier untersuchten instationären Schutzmaßnahmen werden nur im Falle eines Fahrzeuganpralls gegen Fußgänger aktiviert, der daher zuverlässig erkannt werden muss. Für die hierfür eingesetzten, kontaktbasierten Sensorsysteme stellen Fußgänger mit geringen Lasteinträgen in die Fahrzeugfront eine große Herausforderung dar. Die Lasteinträge hängen von zahlreichen Faktoren, wie bspw. der Höhe der entsprechenden Krafteinleitungspfade sowie der Größe und dem Gewichts des Fußgängers, ab. Mit Hilfe von umfangreichen Anprallversuchen und -simulationen wird gezeigt, dass die bisher eingesetzten Prüfkörper nur zum Teil für die Erfüllung dieser Anforderungen geeignet sind. Für ein geeignetes Prüfverfahren müssen daher neue Prüfkörper entwickelt werden. Durch die Aktivierung der Schutzmaßnahme soll bei den crash-aktiven Systemen vor allem das Verletzungsrisiko beim Kopfanprall verringert werden. Hierfür wird häufig die hintere Motorhaubenkante angehoben, um zusätzlichen Deformationsfreiraum zur Verfügung zu stellen. Die Haubenanhebung kann jedoch auch in zusätzlichen Verletzungsrisiken resultieren, bspw. durch die exponierte hintere Haubenkante oder die Verringerung des Deformationsfreiraums in Folge des Oberkörperanpralls. Ein Ersatzprüfverfahren zur Bewertung der Haubendeformation mit Hilfe des Hüftimpaktors wird vorgestellt. Ein hybrides Testverfahren bestehend aus Simulation und Versuch eignet sich für eine objektive Bewertung dieser Systeme, wobei die entsprechenden Versuchsparameter mit Hilfe der vorherigen Simulation bestimmt werden können.
Die Bewertung von Projekten im Rahmen von Kosten-Nutzen-Analysen erfordert quantitative Input-Informationen zu den Kosten von Verkehrsunfällen. In der deutschen Bewertungspraxis werden bislang ausschließlich die mittel- und unmittelbar anfallenden monetären Folgen von Verkehrsunfällen quantitativ berücksichtigt, während die immateriellen Folgen wie Schmerz, Leid, Verlust an Lebensqualität bzw. die Zahlungsbereitschaft der Bevölkerung zur Verringerung/Vermeidung dieser Folgen unberücksichtigt bleiben. Die hier vorgelegte Vorstudie fasst den heutigen Stand der Forschung zur Quantifizierung von Zahlungsbereitschaften für die Verkehrssicherheit durch eine umfassende und systematische Übersicht der wissenschaftlichen Literatur zusammen. Die fünf Verfahren hedonische Preisbildung, kontingente Bewertungsmethode, Risiko-Risiko-Analyse, Standardlotteriemethode und Stated-Choice (SC) werden hinsichtlich ihrer theoretischen Fundierung, der verwendeten methodischen Ansätze (Art der Befragung, Modellierung etc.) und den Anwendungserfahrungen untersucht. Unter den verfügbaren Verfahren stellen die SC-Methoden den heutigen State-of-the-Art in der Forschung zur Ermittlung der Zahlungsbereitschaft der Bevölkerung für nicht marktfähige Güter dar. Allerdings liegen die meisten Anwendungserfahrungen mit SC-Ansätzen bislang für die Bewertung der Reisezeit und der Zuverlässigkeit vor. Zusammenfassend ist festzustellen, dass im Laufe der letzten Jahre eine Lücke zwischen dem Stand der Forschung (SC-Methoden) und dem Stand der Praxis (andere Methoden) entstanden ist, die mit Anwendungserfahrungen gefüllt werden sollte. Insbesondere für Deutschland liegt ein wesentlicher Forschungsbedarf vor. Basierend auf diesem Überblick werden daher Vorschläge für die weitere Forschung entwickelt.
Straßenverkehrszählungen (SVZ) mit mobilen Mess-Systemen : Erhebungs- und Hochrechnungsmethodik
(2013)
Für die nächste Straßenverkehrszählung (SVZ) im Jahre 2015 soll für Abschnitte zweistreifiger Bundesstraßen der temporäre Einsatz mobiler Messsysteme nach einem Rotationsprinzip ermöglicht werden. Dazu wurde in einer 1. Stufe ein Erhebungs- und Hochrechnungskonzept entwickelt, um mit möglichst wenigen Geräten die jährliche Verkehrsstärke und spezielle Kennwerte zuverlässig abzuleiten. Die Grundlage der Hochrechnung bilden die zeitgleich (synchron) zu den temporären Zählungen betriebenen Dauerzählstellen in einer Raumeinheit. Anhand dieser Daten wurden die zentralen Fragen wie Dauer, Häufigkeit und Lage der Zählungen innerhalb des Jahres untersucht. Das Einsatzmodell sieht insgesamt drei Wochen vor. Werktags- und Sonntagsverkehr werden mit zwei um einige Monate versetzte Wochenzählungen außerhalb der Ferien erfasst, der Urlaubsverkehr durch eine Wochenzählung innerhalb der Sommerferien. Die Hochrechnungsfaktoren für die einzelnen Zählwochen ergeben sich aus linearen multiplen Regressionsfunktionen. Deren Koeffizienten werden aus den Dauerzählstellen mit den Einflussgrößen Ferienverkehrs-, Sonntags- und Freitagsfaktoren errechnet. Die Kennwerte, insbesondere "Lärmwerte" und Bemessungsverkehrsstärken, können zum Teil direkt aus den Zähldaten bzw. indirekt über Regressiosansätze abgeleitet werden. In einer 2. Stufe wurde anhand von Dauerzählstellen der Jahre 2000 bis 2010 analysiert, wie die einzelnen Jahresergebnisse auf ein einheitliches Basisjahr übertragen werden können. Wegen der größeren Entwicklungsunterschiede sollte dabei zwischen Werktags- und Sonntagsverkehr sowie zwischen Personen- und Güterverkehr unterschieden werden. In einer 3. Stufe wurden Wege aufgezeigt, wie für Zählungen im Rahmen von Sonderuntersuchungen eine schnelle Ergebnisbereitstellung ermöglicht werden kann. Dies ist notwendig, da die endgültigen Ergebnisse der Dauerzählstellen, die Voraussetzung für die Ableitung der Hochrechnungsfaktoren sind, erst am Anfang des Folgejahres vorliegen. Je nach Einsatzzeit können die Ergebnisse aus den Wochenzählungen als Näherungswerte übernommen werden. Für allgemeine Anwendungen wurden Hinweise zur Entwicklung einer Software-Lösung gegeben.
Since its beginning in 1999, the German In-Depth Accident Study (GIDAS) evolved into the presumably leading representative road traffic accident investigation in Europe, based on the work started in Hanover in 1973. The detailed and comprehensive description of traffic accidents forms an essential basis for vehicle safety research. Due to the ongoing extension of demands of researchers, there is a continuous progress in the techniques and systematic of accident investigation within GIDAS. This paper presents some of the most important developments over the last years. Primary vehicle safety systems are expected to have a significant and increasing influence on reducing accidents. GIDAS therefore began to include and collect active safety parameters as new variables from the year 2005 onwards. This will facilitate to assess the impact of present and future active safety measures. A new system to analyse causation factors of traffic accidents, called ACASS, was implemented in GIDAS in the year 2008. The whole process of data handling was optimised. Since 2005 the on-scene data acquisition is completely conducted with mobile tablet PCs. Comprehensive plausibility checks assure a high data quality. Multi-language codebooks are automatically generated from the database structure itself and interfaces ensure the connection to various database management systems. Members of the consortium can download database and codebook, and synchronize half a terabyte of photographic documentation through a secured online access. With the introduction of the AIS 2005 in the year 2006, some medical categorizations have been revised. To ensure the correct assignment of AIS codes to specific injuries an application based on a diagnostic dictionary was developed. Furthermore a coding tool for the AO classification was introduced. All these enhancements enable GIDAS to be up to date for future research questions.
A flexible pedestrian legform impactor (FlexPLI) with biofidelic characteristics is aimed to be implemented within global legislation on pedestrian protection. Therefore, it is being evaluated by a technical evaluation group (Flex-TEG) of GRSP with respect to its biofidelity, robustness, durability, usability and protection level (Zander, 2008). Previous studies at the Federal Highway Research Institute (BASt) and other laboratories already showed good progress concerning the general development, but also the need for further improvement and further research in various areas. An overview is provided of the different levels of development and all kinds of evaluation activities of the Flex-TEG, starting with the Polar II full scale pedestrian dummy as its origin and ending up with the latest legform impactor built level GTR that is expected to be finalized by the end of the year 2009. Using the latest built levels as a basis, gaps are revealed that should be closed by future developments, like the usage of an upper body mass (UBM), the validation of the femur loads, injury risk functions for the cruciate knee ligaments and an appropriate certification method. A recent study on an additional upper body mass being applied for the first time to the Flex-GT is used as means of validation of recently proposed modified impact conditions. Therefore, two test series on a modern vehicle front using an impactor with and without upper body mass are compared. A test series with the Flex-GTR will be used to study both the comparability of the impact behavior of the GT and GTR built level as well as the consistency of test results. Recommendations for implementation within legislation on pedestrian protection are made.
According to the German road traffic regulations children up to the age of 12 or a height below 150 cm have to use approved and appropriate child restraint systems (CRS). CRS must be approved according to UN-ECE Regulation No. 44. The regulation classifies CRS in 5 weight categories. The upper weight group is approved for children from 22 to 36 kg. However, studies show that already today many children weigh more than 36 kg although they have not reached a height of 150 cm. Therefore, no ECE R44 approved CRS is available for these overweight children. In conclusion, today's sizes and weights of children are no longer represented by the current version of the ECE R44. The heaviest used dummy (P10) weighs just 32.6 kg and has a height of 137.9 cm. Statistical data of German children show that already 5% of the children at a height of 137.9 cm have a weight above 45.3 kg. Regarding children at a height of 145 cm, the 95th percentile limit is at a weight of 53.3 kg. Based on these data 4 dummies with different heights and weights were defined and produced. Two of them are overweight. Up to now, there is no experience how current child restraint systems perform in a car crash if they are used by children with a weight above 36 kg and a height smaller than 150 cm. In the future, different child restraint systems will be tested with respect to the ECE R44 regulation using these overweight dummies.
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.
Evaluation of the performance of competitive headforms as test tools for interior headform testing
(2009)
The European Research Project APROSYS has evaluated the interior headform test procedure developed by EEVC WG 13, representing the head contact in the car during a lateral impact. One important aspect within this test procedure was the selection of an appropriate impactor. The WG13 procedure currently uses the Free Motion Headform as used within the FMVSS 201. The ACEA 3.5 kg headform used in Phase 1 of the European Directive and the future European Regulation on Pedestrian Protection is still discussed as a possible alternative. This paper reports work performed by the Federal Highway Research Institute (BASt) as a part of the APROSYS Task 1.1.3. The study compares the two headform impactors according to FMVSS and ACEA, in a series of basic tests in order to evaluate their sensitivity towards different impact angles, impact accuracy, the effect of differences to impactors of the same type and the effects of the repeatability and reproducibility of the test results. The test surface consisted of a steel tube covered with PU foam and PVC, representing the car interior to be tested. Despite of the higher mass of the FMH the HIC values of this impactor were generally lower than those of the ACEA headform. The FMH showed a higher repeatability of test results but a high sensitivity on the angle of roll, the spherical ACEA impactor performed better with regards to the reproducibility. In case of the ACEA impactor-, the angle of roll had no influence.
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.
In the last years there has been a decline in accident figures in Germany especially for four wheeled vehicles. At the same time, accident figures for motorcycles remained nearly constant. About 17 % of road traffic fatalities in the year 2006 were motorcyclists. 33 % of these riders were killed in single vehicle crashes. This leads to the conclusion that improving driving dynamics and driving stability of powered two wheelers would yield considerable safety gains. However, the well-known measures for cars and trucks with their proven effectiveness cannot be transferred easily to motorcycles. Therefore studies were carried out to examine the safety potential of Anti Lock Braking Systems (ABS) and Vehicle Stability Control (VSC) for motorcycles by means of accident analysis, driving tests and economical as well as technical assessment of the systems. With regard to ABS, test persons were assigned braking tasks (straight and in-curve) with five different brake systems with and without ABS. Stopping distances as well as stress and strain on the riders were measured for 9 test riders who completed 105 braking manoeuvres each. Knowing the ability of ABS to avoid falls during braking in advance of a crash and taking into account the system costs, a cost benefit analysis for ABS for motorcycles was carried out for different market penetration of ABS, i.e. equipment rates, and different time horizons. The potential of VSC for motorcycles was estimated in two steps. First the kinds of accidents that could be prevented by such a system at all have been analysed. For these accident configurations, simulations and driving tests were then performed to determine if a VSC was able to detect the critical driving situation and if it was technically possible to implement an actuator which would help to stabilise the critical situation.