Intersection approach road congestion index and application for Beijing, China

Along with urbanization, traffic congestion increasingly affects people. Evaluation index is of great value to describe traffic jams of the city´s road network or specific region, but in the field of the road intersection, current study on evaluation indicators does not sound. In this paper, point sample method is adopted to conduct field estimation on five districts and 15 Intersections of Beijing City, and congestion index for evaluating urban intersection service level is proposed. By analyzing the service level of intersections in Beijing, this paper reflects the state of Beijing traffic, and puts forward the methods of quantitative management for traffic operation: make full use of computer and communication technologies to build real-time traffic running state evaluation system. This conclusion is helpful to grasp the level of congestion at the present stage, and lays a good foundation for optimizing the traffic management allocation of resources.