Safety of Powered Two-Wheelers (PTWs) is a major concern in many low- and middle-income countries. However, studies on PTWs’ safety and the occurrence of different crash types are relatively scarce. The present study uses the proactive safety approach to investigate the effect of traffic states on PTWs’ safety in mixed and weak-lane-disciplined urban traffic. A multidimensional surrogate safety measure called Anticipated Collision Time (ACT) was used to identify the rear-end and side-swipe conflicts involving PTWs. The study estimates the crash risk of PTW riders using the extreme value theory (EVT) approach. The results revealed that the side-swipe crash risk of PTW is higher than that of the rear-end when the traffic operates at below-capacity conditions. But for congested conditions, both rear-end and side-swipe crash risks remain the same. The higher side-swipe crash risk is due to the frequent filtering and overtaking maneuvers of PTWs and higher relative speeds during low-density conditions. Therefore, necessary measures must be taken to discourage or avoid such maneuvers of PTWs in low-density conditions. The findings will also be beneficial for PTW rider training programs as well as for implementing risk mitigation strategies on urban roads.
Traffic State Variability and Its Impact on Powered Two-Wheeler Crash Risk: A Proactive Assessment
Lecture Notes in Civil Engineering
International Conference on Transportation System Engineering and Management ; 2023 ; Warangal, India October 12, 2023 - October 14, 2023
Recent Advances in Transportation Systems Engineering and Management—Volume 1 ; Chapter : 21 ; 361-377
2024-10-02
17 pages
Article/Chapter (Book)
Electronic Resource
English
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