A Bidirectional Green Wave Band Method under Asymmetric Phase Sequence Mode based on Mobile Navigation data

With the continuous development of the city, traffic congestion is a serious problem. In order to reduce average delay and average numbers of stop, this paper proposed a bidirectional green wave band method under asymmetric phase sequence mode based on free-flow speed. The main idea to the method is to design a bidirectional wave band for arterial roads. Firstly, the different speed between each two intersections is considered and three speed calculation methods are proposed in this paper. Then, intersections with asymmetric phase sequence are also mentioned and this method adjust the relative offset by set a random number which range of zero to the public cycle length. Finally, choose the maximum of all green wave bandwidths by using graphical way. In order to test the effectiveness of the arterial signal coordination method proposed in this paper, a simulation model is considered, where the performance indexes are the average delay and average numbers of stop. The simulation result shows that the method proposed in this paper can improve the traffic capacity by increasing bandwidth and reducing delay.