Table of Contents Author Guidelines Submit a Manuscript
Discrete Dynamics in Nature and Society
Volume 2016 (2016), Article ID 3625342, 13 pages
http://dx.doi.org/10.1155/2016/3625342
Research Article

Transit-Based Emergency Evacuation with Transit Signal Priority in Sudden-Onset Disaster

Ciyun Lin1,2 and Bowen Gong1,2

1State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 13022, China
2Department of Traffic and Transportation, Jilin University, Changchun 13022, China

Received 30 December 2015; Revised 25 March 2016; Accepted 20 April 2016

Academic Editor: Gabriella Bretti

Copyright © 2016 Ciyun Lin and Bowen Gong. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study presents methods of transit signal priority without transit-only lanes for a transit-based emergency evacuation in a sudden-onset disaster. Arterial priority signal coordination is optimized when a traffic signal control system provides priority signals for transit vehicles along an evacuation route. Transit signal priority is determined by “transit vehicle arrival time estimation,” “queuing vehicle dissipation time estimation,” “traffic signal status estimation,” “transit signal optimization,” and “arterial traffic signal coordination for transit vehicle in evacuation route.” It takes advantage of the large capacities of transit vehicles, reduces the evacuation time, and evacuates as many evacuees as possible. The proposed methods were tested on a simulation platform with Paramics V6.0. To evaluate and compare the performance of transit signal priority, three scenarios were simulated in the simulator. The results indicate that the methods of this study can reduce the travel times of transit vehicles along an evacuation route by 13% and 10%, improve the standard deviation of travel time by 16% and 46%, and decrease the average person delay at a signalized intersection by 22% and 17% when the traffic flow saturation along an evacuation route is and , respectively.