Reducing an urban rail transit network’s passenger-oriented vulnerability by adding turn-back tracks
Document Type
Journal Article
Publication Date
2022
Subject Area
place - urban, mode - rail, infrastructure - track
Keywords
Vulnerability, urban rail transit network, turn-back tracks, travel cost
Abstract
The links between two adjacent turn-back stations in an Urban Rail Transit Network (URT) are defined as an Interaction Link Set (ILS), and any link interruption in an ILS renders unusable all links in the ILS. The percent decrease in Total Passenger Trips (T-trips), percent increase in Travel Time Per Trip (P-time) and percent increase in the Number of Transfers Per Trip (P-trans), respectively, due to ILS interruption, measure the Passenger-Oriented Vulnerability (POV) of a URT in terms of travel feasibility, travel time and travel convenience. The sum of the length-weighted percent increases in Travel Cost Per Trip (P-cost) for each ILS interruption comprehensively measures a URT’s POV. Models are proposed for minimizing a URT’s POV by adding Turn-Back Tracks (TBs) at stations in an optimized sequence. An application demonstrates that the models can identify which stations should receive TBs according to what priority for effectively reducing the POV.
Rights
Permission to publish the abstract has been given by Taylor&Francis, copyright remains with them.
Recommended Citation
Liu, J., Schonfeld, P.M., Zhan, S., Wang, K.C.P., & Peng, Q. (2022). Reducing an urban rail transit network’s passenger-oriented vulnerability by adding turn-back tracks. Transportmetrica B: Transport Dynamics, Vol. 10(1), pp. 667-692.
