BACKGROUND Significant underreporting of road traffic injuries by the police has been documented, even in developed countries. The objective of this study was to clarify the magnitude of underreporting of police data in Japan. METHODS Police reports were compared with those of the fire department and the Marine and Fire Insurance Association of Japan. RESULTS The results reveal significant ...

Background—Significant underreporting of road traYc injuries by the police has been documented, even in developed countries. The objective of this study was to clarify the magnitude of underreporting of police data in Japan. Methods—Police reports were compared with those of the fire department and the Marine and Fire Insurance Association of Japan. Results—The results reveal significant underr...

In the literature frontal crashes typically have been classified as full, large overlap, or small overlap impacts (SOI) in accordance with the degree of frontal area involvement. These classifications implicitly refer to the degree of longitudinal structure engagement during impact. While full and large overlap impacts have received considerable attention, SOI has undergone limited analyses thr...

A significant fraction of fatalities involving passengers in automobile accidents is due to severe Head Injury. Head impact safety which in turn is the occupant safety is a significant consideration particularly in the design of Passenger Vehicles. During the rollover of SUV the head comes in contact with the parts such as the B-Pillar so in order to evaluate the occupant safety during rollover...

This study investigates the relationship between occupant injury and a host of other factors, including traffic and weather conditions present at the time of crash, road design, vehicle type, and occupant characteristics. Crash and traffic-detector data from six Orange County freeways were used in an ordered probit model. Crash outcomes were classified for each occupant, as no injury, non-visib...

Current procedures for estimating occupant risk in real-world vehicle crashes do not account for the performance of the occupant restraints, such as seatbelts and airbags. This paper compares the ability of two restraint performance metrics, the ridedown efficiency and the restraint quotient, to predict occupant injury as measured by a crash test dummy. The responses of crash test dummies were ...

OBJECTIVE To quantify the association between vehicle age and risk of car crash injury. DESIGN AND SETTING Data from a population based case-control study conducted in the Auckland region in 1998/99 was used to examine the adjusted risk of car crash injury or death due to vehicle age, after controlling for a range of known confounders. Cases were all cars involved in crashes in which at least...

The National Highway Traffic Safety Administration’s (NHTSA) Vehicle Safety Rulemaking and Research Priority Plan 2009 – 2011 describes the projects the agency plans to work on in the rulemaking and research areas in those calendar years. Specific programs identified in the plan included research to improve vehicle safety for rear seat occupants, children, and older people. In support of the pr...

One of the applications of ergonomics disciplinary is designing driver workstation compatible to users' characteristics. The aim of this study was evaluation of interior design of Shoka vehicle with respect to the accommodation for Iranian population and proposing suggestions for customizing design of this vehicle. This study was a descriptive-analytical study conducted among thirty men from Ir...

A survey among 127 wheelchair users was conducted to characterize wheelchair occupant restraint usage patterns, restraint deficiencies, user characteristics, and essential wheelchair occupant restraint design parameters for when individuals travel in motor vehicles while seated in their wheelchairs. Survey respondents value independent travel and seem generally interested in the use of an occup...