Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33814
Title: Modeling transit technology selection in a linear transportation corridor
Authors: Chen, YJ
Li, ZC
Lam, WHK 
Keywords: Linear transportation corridor
Population density
Social welfare
Transit technology selection problem
Issue Date: 2015
Publisher: John Wiley & Sons
Source: Journal of advanced transportation, 2015, v. 49, no. 1, p. 48-72 How to cite?
Journal: Journal of advanced transportation 
Abstract: This paper proposes an analytical model for investigating transit technology selection problem from a perspective of transit authority. Given a transit technology alternative (e.g., metro, light rail transit, or bus rapid transit), the proposed model aims to maximize the social welfare of the transit system by determining the optimal combination of transit line length, number of stations, station location (or spacing), headway, and fare. In the proposed model, the effects of passenger demand elasticity and capacity constraint are explicitly considered. The properties of the model are examined analytically, and a heuristic solution procedure for determining the model solution is presented. By comparing the optimized social welfare for different transit technology alternatives, the optimal transit technology solution can be obtained together with critical population density. On the basis of a simple population growth rate formula, optimal investment timing of a new transit technology can be estimated. The proposed methodology is illustrated in several Chinese cities. Insightful findings are reported on the interrelation among transit technology selection, population density, transit investment cost, and transit line parameter design as well as the comparison between social welfare maximization and profit maximization regimes.
URI: http://hdl.handle.net/10397/33814
ISSN: 0197-6729
EISSN: 2042-3195
DOI: 10.1002/atr.1262
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