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Optimisation of a Bus Network Configuration and Frequency Considering the Common Lines Problem

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DOI: 10.4236/jtts.2012.23024    3,869 Downloads   6,939 Views   Citations


Public transportation network reorganisation can be a key measure in designing more efficient networks and increasing the number of passengers. To date, several authors have proposed models for the “transit route network design problem” (TRNDP), and many of them use a transit assignment model as one component. However, not all models have considered the “common lines problem,” which is an essential feature in transit network assignment and is based on the concept that the fastest way to get to a destination is to take the first vehicle arriving among an “attractive” set of lines. Thus, we sought to reveal the features of considering the common lines problem by comparing results with and without considering the problem in a transit assignment model. For comparison, a model similar to a previous one was used, formulated as a bi-level optimisation problem, the upper problem of which is described as a multi-objective problem. As a result, although the solutions with and without considering the common lines showed almost the same Pareto front, we confirmed that a more direct service is provided if the common lines problem is considered whereas a less direct service is provided if it is not. With a small network case study, we found that considering the common lines problem in the TRNDP is important as it allows operators to provide more direct services.

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H. Shimamoto, J. Schmöcker and F. Kurauchi, "Optimisation of a Bus Network Configuration and Frequency Considering the Common Lines Problem," Journal of Transportation Technologies, Vol. 2 No. 3, 2012, pp. 220-229. doi: 10.4236/jtts.2012.23024.


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