%0 Journal Article
%A HU Zhi-qun
%A LU Zhao-ming
%A WANG Lu-han
%A WEN Xiang-ming
%A HUANG Hao
%T Intelligent Traffic Signal Control Algorithm Based on Sumtree DDPG
%D 2021
%R 10.13190/j.jbupt.2020-006
%J Journal of Beijing University of Posts and Telecommunications
%P 97-103
%V 44
%N 1
%X A multi-intersection intelligent traffic signal control algorithm based on sumtree deep deterministic policy gradient(Sumtree DDPG)is proposed. Through real-time observation of intersection data,the cycle length,phase sequence and phase duration of the traffic signal can be intelligently adjusted to improve the efficiency of intersections. Meanwhile,the empirical data storage mode based on sumtree structure can improve the sampling efficiency and accelerate the algorithm convergence. Compared with fixed signal timing and signal timing algorithm based on traffic flow weight,a simulation is carried out that the proposed algorithm obtains good performance in vehicle queue length,vehicle waiting time and vehicle average speed in dynamic environment.
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2020-006