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Feasibility Testing for Dial-a-Ride Problems

  • Dag Haugland
  • Sin C. Ho
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6124)

Abstract

Hunsaker and Savelsbergh have proposed an algorithm for testing feasibility of a route in the solution to the dial-a-ride problem. The constraints that are checked are load capacity constraints, time windows, ride time bounds and wait time bounds. The algorithm has linear running time. By virtue of a simple example, we show in this work that their algorithm is incorrect. We also prove that by increasing the time complexity by only a logarithmic factor, a correct algorithm is obtained.

Keywords

dial-a-ride problem feasibility algorithm 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Dag Haugland
    • 1
  • Sin C. Ho
    • 2
  1. 1.Department of InformaticsUniversity of BergenBergenNorway
  2. 2.CORAL, Department of Business Studies, Aarhus School of BusinessAarhus UniversityÅrhusDenmark

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