How does the driver reaction behavior affect the safety benefit of intelligent safety systems?

Abstract

The influence of the drivers' reaction behavior on In-vehicle intelligent safety system (ISS) at the critical moment before an accident is still immature. The purpose of this study is to analyze vehicle-to-vehicle rear-end crashes to determine the challenges of ISS. Firstly, the sensor detection range and the last time to break of ISS were analyzed. Secondly, The driver reaction behavior model, ISS and vehicle pre-crash kinematics were combined to evaluate the safety benefits of FCW and FCW+AEB. The results show that the safety benefit of FCW decreases with the increase of the driver's reaction time and increases with the increase of the driver's maximum braking deceleration. FCW+AEB has little influence on the percentage of collision avoidance accidents by the driver's reaction behavior.

Keywords:

• Rear-end crash
• Risky drivers
• ADAS
• Counterfactual simulations
• Reaction time

Disclosure statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this article.

Supporting information

The data used to support the findings of this study are available from the corresponding author upon request.

Additional information

Funding

This work was supported by National Key R&D Program of China (Grant no. 2019YFE0108000).