Vehicle-Pedestrian Interaction Analysis in Mixed Traffic Condition

The interaction between motor and non-motor traffic participators has been increasing dramatically. So far, traffic safety is always measured as the number and severities of traffic collisions which occur. Time to Collision (TTC) is one major parameter to reflect the possibility of such collisions. It can also be applied to the pedestrian involved analysis, but cannot reflect the pedestrian safety precisely. Therefore, time Difference to Collision (TDTC) is defined accordingly as a variation of TTC to describe the pedestrian-vehicle (P&V) interaction. One hundred groups of P&V interaction cases were collected. The comparison was made based on the cases between Vehicle-Pass-First (VPF) and Pedestrian-Pass-First (PPF) and among different safety scenes. The results show that the distance and speed values are obviously different from the cases between VPF and PPF, and the TDTC values are related to safety. It may provide some guidance to describe and analyze the driver-pedestrian interaction behavior. The participators' interaction behavior can be discussed further in the future.