Solution methods for a Decision Support System for vehicle routing with fluctua- tions in the travel time

نویسندگان

  • Ana Osvald
  • Raffaele Pesenti
  • Walter Ukovich
چکیده

In this work we present a method to be used in decision support system (DSS), which solve the Vehicle Routing Problem with Time Windows. In order to find a good estimation of customers’ delivery time, we consider the fluctuations of the travel time. Solving the routing problems with time constraints without taking into account the fluctuations of the travel time during the day, can lead to serious errors in estimating customers’ delivery time with an additional cost for transportation companies. Initially we present a method to estimate the fluctuations of the travel time and than to solve the Vehicle Routing Problem with Time Windows and with Time Dependent travel time. In the estimation of the travel times, we do not use the Euclidean, but actual distance. The proposed method gives a solution in a short time and so it is suitable to be used also in web based DSS for logistic purposes.

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تاریخ انتشار 2004