Optimal stop spacing and headway of congested transit system considering realistic wait times |
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Authors: | Steven Chien Jongho Byun Athanassios Bladikas |
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Institution: | 1. Department of Civil and Environmental Engineering, New Jersey Institute of Technology , University Heights , Newark, NJ, 07102, USA chien@njit.edu;3. Interdisciplinary Program in Transportation, New Jersey Institute of Technology , University Heights , Newark, NJ, 07102, USA |
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Abstract: | Abstract This paper revisits the classical transit scheduling problem and investigates the relationship between stop spacing and headway, considering realistic wait time and operable transit capacity. Headway and stop spacing are important determinants for planning a transit system, which influence the service level as well as the cost of operation. A mathematical model is developed, and the objective function is user travel time which is minimized by the optimized stop spacing and headway, subject to the constraints of operable fleet size and route capacity. Optimal stop spacing and headway solutions are obtained in a numerical example. Sensitivity analysis is conducted, and the effect of model parameters on user travel time is explored. |
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Keywords: | public transportation wait time travel time planning optimization |
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