Minimizing the waiting time for a one-way shuttle service

Laurent Daudet () and Frédéric Meunier ()
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Laurent Daudet: Université Paris Est
Frédéric Meunier: Université Paris Est

Journal of Scheduling, 2020, vol. 23, issue 1, No 5, 95-115

Abstract: Abstract Consider a terminal in which users arrive continuously over a finite period of time at a variable rate known in advance. A fleet of shuttles has to carry them over a fixed trip. What is the shuttle schedule that minimizes their waiting time? This is the question addressed in the present paper. We consider several versions that differ according to whether the shuttles come back to the terminal after their trip or not, and according to the objective function (maximum or average of the waiting times). We propose efficient algorithms with proven performance guarantees for almost all versions, and we completely solve the case where all users are present in the terminal from the beginning, a result which is already of some interest. The techniques used are of various types (convex optimization, shortest paths, ...). The paper ends with numerical experiments showing that most of our algorithms behave also well in practice.

Keywords: Convex optimization; Shortest paths; Timetabling; Transportation; Waiting time; MSC; 90B35 (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/s10951-019-00604-y

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