Hybrid DES-PSO framework for the design of commuters’ circulation space at multimodal transport interchange

Afaq Khattak and Arshad Hussain

Mathematics and Computers in Simulation (MATCOM), 2021, vol. 180, issue C, 205-229

Abstract: The commuters’ circulation space in the multimodal transport interchanges comprises of a network of pathways and stairways and meant for the efficient transit of commuters from one mode to another transport mode. Transit Cooperative Research Program (TCRP) - Report 165 guidelines for the design of commuters’ circulation space in multimodal transport interchanges has several shortcomings. To aid the designers of multimodal transport interchanges, a Discrete-Event Simulation (DES) framework using Phase-Type (PH) distribution is developed for the analysis of commuters’ circulation space, based on commuters’ flow–density​ relationship. The performance measures such as average area occupied per commuters, blocking probability, average sojourn time and throughput are computed. The DES framework is then coupled with the Particle Swarm Optimization (PSO) to create a hybrid DES-PSO framework for the design of commuters’ circulation space under a required Level of Service (LOS). Experimental results show that the optimized widths are highly affected by both commuters’ arrival rates and randomness in the arrival flow. The commuters’ flow–density relationship considers both congested and uncongested conditions and therefore gives higher optimized width. The upstream stairways resulted in larger widths than elevated passageways due to slower movement of commuters. The sensitivity analysis under several factors reveals that commuters’ arrival rate and widths of the circulation space are highly dominant factors while the lengths of circulation space do not show any vital impact on performance measure values.

Keywords: Multimodal transport interchange; Commuters’ circulation space; Discrete-event simulation framework; Particle Swarm Optimization (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:180:y:2021:i:c:p:205-229

DOI: 10.1016/j.matcom.2020.08.025

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