Pedestrian-vehicle conflicts at signalized intersections are on the rise due to the swift expansion of road traffic in emerging nations like India. The present study assessed pedestrian conflicts with permissive right-turning vehicles at signalized intersections by analyzing the interaction between right-turning vehicles and pedestrians using the traffic conflict technique (TCT). The Surrogate Safety Measure (SSM) parameters, i.e., post-encroachment time (PET) and time to collision (TTC) were used to analyze the possible pedestrian-vehicle conflicts. In that context, data was acquired from five different three-legged and four-legged intersections of Nagpur and Indore cities. Threshold values of PET and TTC were proposed using clustering analysis and depending on those values, the crash severity levels were divided into critical, high, medium, and low. The proposed severity levels will be useful to rank the severity of conflicts at the crosswalks and hence access the safety of signalized intersections.

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A Study on Pedestrian-Vehicle Conflict at Signalized Crosswalks in an Indian Traffic Scenario

  • Geeta Peche,
  • Arpita Saha

摘要

Pedestrian-vehicle conflicts at signalized intersections are on the rise due to the swift expansion of road traffic in emerging nations like India. The present study assessed pedestrian conflicts with permissive right-turning vehicles at signalized intersections by analyzing the interaction between right-turning vehicles and pedestrians using the traffic conflict technique (TCT). The Surrogate Safety Measure (SSM) parameters, i.e., post-encroachment time (PET) and time to collision (TTC) were used to analyze the possible pedestrian-vehicle conflicts. In that context, data was acquired from five different three-legged and four-legged intersections of Nagpur and Indore cities. Threshold values of PET and TTC were proposed using clustering analysis and depending on those values, the crash severity levels were divided into critical, high, medium, and low. The proposed severity levels will be useful to rank the severity of conflicts at the crosswalks and hence access the safety of signalized intersections.