In order to improve the precision of time interval partition at an isolated control intersection,a kagscv-DBSCAN algo-rithm based on KD-tree accelerated search and hyperparametric optimization using GridsearchCV was firstly proposed to solve the pre-liminary time of interval partition plan based on natural data of detectors,and was modified by adding the consideration of impacts of plan transition.Finally,the total vehicle delay,intersection capacity and computational speed were used as evaluation indexes for prac-tical case analysis and comparison with traditional methods.The results show that the proposed method reduces the total vehicle delay by 8.69%,6.61%,3.68%and 1.04%,respectively,and improves the capacity by 5.67%,5.07%,3.48%and 1.69%,respec-tively,compared with K-means,PAW,FCM and RSAGA-FCM,and has a significant advantage in computing speed.
关键词
交通运输系统工程/信号控制/时段划分/聚类算法/方案过渡
Key words
engineering of communications and transportation system/signal control/time of interval partition/clustering algo-rithm/plan transition
维普
万方数据