A Study of Fatality Risk and Head Dynamic Response of Cyclist and Pedestrian Based on Passenger Car Accident Data Analysis and Simulations
Journal article, 2015

Objective: The current study aims to compare the fatality risk of pedestrians and cyclists in urban traffic through an analysis of real-world accident data in China. Methods: First, 438 cases, including 371 pedestrian cases and 67 cyclist cases, were selected as a sample from the accidents collected through an in-depth investigation of vehicle accidents in China. A statistical measurement of the fatality risk with respect to impact velocity was carried out using a logistic regression analysis. Furthermore, 21 pedestrian and 24 cyclist accidents were selected for reconstruction with the MADYMO program. A comparative analysis was conducted based on the results from accident analysis and simulations for the fatality risk and head dynamic response of pedestrians and cyclists. Results: The results indicate that the vehicle impact velocity has a significant relationship with the fatality risk of both pedestrians and cyclists. The fatality risks at 50km/h are more than twice as high as the risk at 40km/h and about 5times as high as that at 30km/h for both pedestrians and cyclists. Moreover, cyclists suffered slightly lower fatality risk compared to pedestrians. The corresponding vehicle impact velocity is 65.4km/h for pedestrian with a fatality risk of 50 percent, whereas for cyclists it is 67.6km/h. In addition, the head impact conditions between pedestrians and cyclists are different. Conclusions: These findings offer potential contributions for establishing a more reasonable speed limit for urban traffic in China and generating strategies for cyclists' and pedestrians' head protection.




head dynamic response




fatality risk


Jin Nie

Hunan University

G. Li

Hunan University

Jikuang Yang

Chalmers, Vehicle and Traffic Safety Centre at Chalmers (SAFER)

Chalmers, Applied Mechanics, Vehicle Safety

Traffic Injury Prevention

1538-9588 (ISSN) 1538-957X (eISSN)

Vol. 16 1 76-83

Subject Categories

Vehicle Engineering



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