The Impacts of Warning Release Time and Speed Limit on Driving Behaviour and Pedestrian-Vehicle Collision Rate on Side-parking Road

Abstract

As we all know, pedestrian-vehicle collisions would cause serious damage to us, especially those caused by blind spots. This study focused on collisions happen in the side- parking road, using a driving simulator to design scenarios. After finishing the experiment, we selected some variables to describe the driver's driving behaviour, including brake reaction time, warning-to-brake time, and maximum deceleration. To verify the effectiveness of the audio warning system, the collision rate was also discussed. It was found that warning release time has significant effects with all the variables, and gender has significant effects with brake reaction time and warning-to-brake time, while the speed limit only influences maximum deceleration. Collision rate was affected by speed limit and warning release time, which decreased with the increase of speed limit and the late release of warning. It is recommended to set the warning release time to 4s before the collision. On the other hand, it is necessary to select a proper speed limit on the side-parking roads, and it is better to set it under 30km/h to reduce the probability of pedestrian-vehicle collision.