Abstract
In this paper we study the effects of changes to a paratransit system operated as a dynamic dial-a-ride service. The scheduling of requests is limited by time window constraints and maximum ride time constraints; costs for customer discomfort in form of waiting time and excess ride time are considered in the planning of the service. The parameters defining these constraints and costs are evaluated based on simulations of a real-world scenario. Several different criteria, both regarding customer level of service and operational costs, are used to evaluate the simulation results. By showing which parameters have a large impact on the different evaluation criteria, we can give guidelines to operators of public transport of how to design their dial-a-ride services. Numerical results are presented and from these results conclusions are drawn regarding which parameters are most important in dynamic dial-a-ride services.
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Acknowledgments
This research is part of a project financed by the Swedish Governmental Agency for Innovation Systems (VINNOVA) and the Swedish Transport Administration. The work has been done in collaboration with Planit Sweden AB and Malmator.
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Häll, C.H., Lundgren, J.T. & Voß, S. Evaluating the performance of a dial-a-ride service using simulation. Public Transp 7, 139–157 (2015). https://doi.org/10.1007/s12469-015-0101-z
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DOI: https://doi.org/10.1007/s12469-015-0101-z