Simulation of pedestrian effects on vehicle delay at signalized street intersections

Abstract

The purpose of this study is to determine the effects of pedestrian movement on vehicle flow at signalized intersections. Specifically, a computer simulation model written in General Purpose Simulation System language was developed to calculate vehicle seconds of delay at two-lane by four-lane street intersections with fixed-time signal cycles.

Two intersections, operating under different conditions, were simulated at various pedestrian and vehicle flow volumes. Possible warrants, based on simulation output, for the inclusion of a separate pedestrian signal in the signal cycle for the two intersections studied were discussed.