Browse Publications Technical Papers 2015-01-1415

Features of Fatal Cyclist Injuries in Vehicle-Versus-Cyclist Accidents in Japan 2015-01-1415

Fatal injuries suffered by cyclists in vehicle-versus-cyclist accidents are investigated to provide information for the introduction of safety countermeasures. We analyzed characteristics of cyclist injuries in real fatal accidents and compared them with severity levels of head injury in impact tests against a road surface. In the accident analyses, we investigated the main body regions whose injuries led to fatalities using a macro vehicle-cyclist accident database of the Institute for Traffic Accident Research and Data Analysis of Japan. Using data from 2009 to 2013, we investigated the frequency of cyclist fatalities by gender, age group, vehicle speed, and the source of fatal head injury (impact with the vehicle or road surface). Results indicated that head injuries are the most common cause of cyclist fatalities in car-cyclist accidents. The results also indicated that the percentage of fatalities due to hip injuries was significantly higher for females than for males, and significantly higher for cyclists older than 65 years than those aged 13-59 years. It was clarified that fatalities due to head impacts against road surfaces were more common at low vehicle speeds among cyclists older than 60 years. The results of accident analyses also showed that the wearing of a helmet was extremely effective in preventing fatal cyclist accidents. In impact tests against a road surface, the impact was milder when the adult pedestrian headform impactor wore a helmet (head injury criterion of 860 versus 1157). It is also found that currently available helmets are designed for protection of a cyclist's head in the first impact only.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

Influences on the Risk of Injury of Bicyclists' Heads and Benefits of Bicycle Helmets in Terms of Injury Avoidance and Reduction of Injury Severity


View Details


Risks of Serious Injuries and Fatalities of Cyclists Associated with Impact Velocities of Cars in Car-Cyclist Accidents in Japan


View Details


Injury Analysis of Adult and Child Dummies


View Details