Traffic regulation algorithm for metro lines with time interval deviations

Issue title: ICNC-FSKD 2015

Guest editors: Zheng Xiao and Kenli Li

Article type: Research Article

Authors: Park, Min-Kee^*

Affiliations: Department of Electronic & IT Media Engineering, Seoul National University of Science & Technology, 232 gongneung-ro, Nowon-gu, Seoul, 139-743, Korea

Correspondence: [*] Corresponding author. Tel.: +82 2 970 6464; Fax: +82 2 979 7903; E-mail: mkpark@seoultech.ac.kr.

Abstract: When a train is delayed because of a disturbance, the time interval between successive trains increases, and high-frequency metro lines can become unstable. Time interval control is therefore necessary in preventing such instabilities. In this paper, we propose a traffic regulation algorithm that is easy to implement and guarantees system stability. In the proposed method, controlled trains are determined from time interval deviations between successive trains, and the control algorithm for both staying time and running time is designed using a discrete traffic model to ensure an optimal time interval between successive trains. The results of a computer simulation are also given to demonstrate the validity of the proposed algorithm.

Keywords: Traffic regulation, traffic control, traffic model, time interval, stability

DOI: 10.3233/JIFS-169029

Journal: Journal of Intelligent & Fuzzy Systems, vol. 31, no. 2, pp. 1001-1008, 2016