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Mathematical Problems in Engineering
Volume 2015 (2015), Article ID 369767, 12 pages
http://dx.doi.org/10.1155/2015/369767
Research Article

Turnback Capacity Assessment and Delay Management at a Rail Transit Terminal with Two-Tail Tracks

1School of Transportation Engineering, Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China
2Institute of Railway Systems Engineering and Traffic Safety, Technical University of Braunschweig, Pockelsstraße 3, 38106 Braunschweig, Germany
3Department of Civil and Environmental Engineering, Jackson State University, P.O. Box 17068, Jackson, MS, USA

Received 25 December 2014; Revised 4 February 2015; Accepted 6 February 2015

Academic Editor: Anders Eriksson

Copyright © 2015 Zhibin Jiang et al. 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

Terminal capacity and performance have become a major concern for rail transit agencies in China due to the ever increasing passenger demand. This paper develops a mixed integer programming (MIP) optimization model to estimate the turnback capacity and performance of a rail transit terminal with two-tail tracks. The capacity evaluation and delay propagation are described and assessed as an -track integrated model with minimal time span and train delay. Operations and design parameters such as tail track allocation strategies, maximum layover time, headway pattern, buffer time distribution scheme, and primary delay are also considered in this model. The effectiveness of the model is tested by a case study with computation results drawn from one terminal station in Shanghai, China. The case study results show that unfixed platform time and flexible tail track allocation strategies can improve the capacity of turnback operation, and the strategy of allowing swapping of the tail tracks has a significantly positive impact on delay absorption.