A method to identify critical acceptance gap at conflict area: apply to vissim simulation

Abstract

The purposes of this study were to seek a method for modeling vehicle behavior at intersections based on field observing data, then to identify the critical acceptance gap for mixed traffic flow in Vietnam. The study also presented an example that applied this method to obtain the calibrated value for the critical acceptance gap for VISSIM simulation. With high accuracy in prediction of the exampled model and the validated result of simulating an intersection, it could be concluded that the method is effective in identifying the critical acceptance gap at intersections.