Safety Enhancement of Unsignalized Intersection Using Microsimulation and Surrogate Safety Measures

Abstract

Road safety is deteriorating due to the complex driver behaviour in the road network, especially in developing countries like India. Surrogate safety measures for traffic safety assessment is getting attention due to their advantages over traffic accident data. The time-based proximal indicator, Post-Encroachment Time (PET), have been used in this study. Two unsignalized intersections were simulated using VISSIM with proper calibration and validation. The effectiveness of various preventive measures was tested using the simulated model. It was found that implementing a raised table in the major road is increasing the safety of the intersection by increasing the PET value.