SIMULATION MODELLING OF PEDESTRIANS INFLUENCE ON THE ROUNDABOUT CAPACITY

Abstract

Pedestrians in general have priority to the cars on unsignalized intersections and roundabouts. Roundabout capacity highly depends on pedestrians, which can interrupt traffic flow whenever they step on the crosswalk. If there are pedestrian crossings on each approach, vehicles should stop to allow them to cross the road. In some cases, vehicle stopped on the exiting lane can even block the central circle of the roundabout, causing serious deterioration of the capacity and level of service. Position of the crosswalk on the entering and exiting lane can reduce influence of pedestrian interruption of car flow. Analysis of pedestrian influence on exiting lane capacity has not been researched before and the aim of this paper is to show how pedestrian flow and the crosswalk location influence on the roundabout capacity and level of service. In addition, comparison of the crosswalk location related to the centre of the roundabout was given.