Title
Research on Phase Combination and Signal Timing Based on Improved K-Medoids Algorithm for Intersection Signal Control
Abstract
AbstractAiming at the problem of intersection signal control, a method of traffic phase combination and signal timing optimization based on the improved K-medoids algorithm is proposed. Firstly, the improvement of the traditional K-medoids algorithm embodies in two aspects, namely, the selection of the initial medoids and the parameter k, which will be applied to the cluster analysis of historical saturation data. The algorithm determines the initial medoids based on a set of probabilities calculated from the distance and determines the number of clusters k based on an exponential function, weight adjustment, and elbow ideas. Secondly, a phase combination model is established based on the saturation and green split data, and the signal timing is optimized through a bilevel programming model. Finally, the algorithm is evaluated over a certain intersection in Hangzhou, and results show that this algorithm can reduce the average vehicle delay and queue length and improve the traffic capacity of the intersection in the peak hour.
Year
DOI
Venue
2020
10.1155/2020/3240675
Periodicals
DocType
Volume
Issue
Journal
2020
1
ISSN
Citations 
PageRank 
1530-8669
0
0.34
References 
Authors
11
5
Name
Order
Citations
PageRank
Guojiang Shen18613.23
Xiangyu Zhu200.34
Wei Xu332938.14
Longfeng Tang400.34
Xiangjie Kong542546.56