Abstract:
To optimize the coordination effect of the arterial road with bottleneck intersections, the topic that the width of the green wave belt is seriously restricted by the bottleneck intersections was proposed through analyzing an example employed in the classical algebraic method of the arterial road coordinated control. With the aim of maximizing the green band width, the bottleneck intersection was equivalent to the straight road, and the green wave coordination parameters of the arterial road was solved by using the algebraic method after the equivalent. Then, the bottleneck intersections dynamic control model was established with the purpose of maximum traffic capacity, which calculated the suitable phase sequence and appropriate phase time. It is effective to ensure that the traffic flow of arterial straight roads was not interrupted at the bottleneck intersection. Finally, the VISSIM traffic software was used to simulate the example, to collect the average travel time of the vehicle and to compute the traffic capacity of the bottleneck intersections during the simulation. Results show that compared with the classical algebraic algorithm, the green band width increases by 8.0%, the average travel time of the vehicle is reduced by 8.9%, and the bottleneck crossing capacity is improved by 5.1%, which tremendously improves the effect of the arterial road coordinated control with bottleneck intersections in practice.