Abstract Flexible transport systems such as Demand Responsive Transit (DRT) are becoming more and more popular over the last few years due to their convenience for customers. However, this convenience comes at a price. Transport authorities are currently looking for ways to improve service flexibility of Conventional Public Transport (CPT), which is undoubtedly cheaper than DRT. This justifies the need for Flex-Route Transit (FRT), which combines the flexibility of DRT and the low cost of CPT. This paper surveys research developments on FRT, as a promising alternative mode of public transport. Based on this survey, we discuss current research gaps that may be filled to increase FRT applicability. Moreover, we show how literature on classic Operations Research problems is of help to do so. In particular, we study similarities and differences between FRT and Vehicle Routing Problem, and specifically with one of its variant named Dial-a-Ride Problem. The analysis illustrates promising techniques that may be of use for solving FRT.
Highlights We conduct a thorough survey of the literature pertinent to the Flex-Route Transit problem. We provide a classification of the different contributions according their methodologies and specificities. Additionally, we survey different transportation problems and establish their relevance for the problem under investigation. We discuss the features of various case studies presented in the academic literature, facilitating a comparative analysis among them. We discuss several possible research directions to improve upon identified lacunae in the existing body of works.
A survey of Flex-Route Transit problem and its link with Vehicle Routing Problem
2023-11-23
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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