Research and Evaluation of Arterial Green Wave Coordination Control: A Case Study of Jingtang Road

By adjusting the parameters of signal lights at arterial intersections, arterial green wave coordination control can make certain vehicles travel through the downstream intersection without or with fewer stops, and thus improve traffic capacity. This paper takes three intersections in Jingtang Road as examples, evaluates the control strategy, and concludes that the bandwidth in the morning peak is 118 s (northbound 59 s and southbound 59 s), and that in the evening peak is 103 s (northbound 51 s and southbound 52 s). Subsequently, based on the VISSIM software, the situations of the arterial and intersections before and after optimization are evaluated. The result shows that, after optimization, the travel time in arterial reduces by 26.2%–59.0% and the average speed increases by 35.5%–144.0%; the average delay in intersections reduces by 46.7%–82.2% and the delay at peak hours reduces by 129.2 and 251.7 s. Accordingly, the road capacity is improved significantly.