PROBABILISTIC MODEL FOR CONFLICTS AT URBAN UNCONTROLLED INTERSECTION

A study of interactions among crossing vehicles at an intersection for ms an important attribute for evaluating the safety at urban uncontrol led intersections. In the present study, an attempt is made to develop a methodology based on probabilistic approach for determining the pos sible traffic conflicts at urban uncontrolled intersections. The devel oped model is validated using field data. The model can be used for qu ick estimation of possible conflicts at urban uncontrolled intersectio n. Issues related to the applicability of the model to identify the im pact of parameters such as cross-road traffic flow and percentage of t urning traffic on number of conflicts are briefly analyzed.