A survey on planning semi-flexible transit systems: Methodological issues and a unifying framework |
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| Institution: | 1. Dept. management et technologie, École des sciences de la gestion, Université du Québec à Montréal, Canada;2. Centre Interuniversitaire de Recherche sur les, Réseaux d’Entreprise, la Logistique et le Transport (CIRRELT), Canada;3. Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Italy;4. School of Engineering, Università degli Studi di Ferrara, Italy;5. Département de génie de la construction, École de technologie supérieure, Montréal, Canada;1. Wight & Company, 211 N Clinton Ave, Suite 300N, Chicago, IL 60661, United States;2. Northwestern University Transportation Center, 600 Foster St, Evanston, IL 60208, United States;3. Northwestern University Transportation Center, Evanston, IL 60208, United States;1. Rail and Transit Division, Parsons Transportation Group, Parsons Corporation, 100 M Street, South East, Washington, DC 20003, United States;2. Department of Civil & Environmental Engineering, University of Maryland, College Park, MD 20742, United States;1. Massachusetts Institute of Technology, United States;2. Fujitsu Laboratories, Ltd, Japan;1. Department of Civil and Environmental Engineering, University of Massachusetts, Amherst, MA 01003, United States;2. Department of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, United States |
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| Abstract: | When demand for transportation is low or sparse, traditional transit cannot provide efficient and good-quality service, due to its fixed structure. New transportation alternatives are therefore increasingly proposed, combining on-demand service adjustment capabilities to the regular route and schedule characteristics of traditional transit. Such so-called semi-flexible systems require careful planning, but no formalization of the corresponding decisions problems, nor any comprehensive methodology has been proposed yet. This paper aims at contributing to fill this gap by presenting a comprehensive literature review, and a general and unifying modeling framework for representing and planning semi-flexible systems. The latter takes the form of the Demand Adaptive Systems, which generalizes the semi-flexible systems described in the literature, and also offers a number of advanced features, the scheduling mechanism, in particular. The paper then provides a classification of planning decisions, which is used to structure a comprehensive and comparative literature review of the field of semi-flexible systems, including methodological contributions as well as a number of particularly significant practical experiences. |
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| Keywords: | Public transit Demand-responsive systems Dial-a-ride Demand-adaptive systems Planning General modeling framework Literature review |
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