This paper introduces the stochastic time-dependent orienteering problem with time windows. The orienteering problem occurs in logistic situations where an optimal combination of locations must first be selected and then the routing between these selected locations must be optimized. In …
© 2015 Elsevier B.V. All rights reserved.This paper focuses on the problem of minimizing CO2 emissions in the routing of vehicles in urban areas. While many authors have realized the importance of speed in minimizing emissions, most of the existing …
We propose a new speed and departure time optimization algorithm for the pollution-routing problem (PRP), which runs in quadratic time and returns an optimal schedule. This algorithm is embedded into an iterated local search-based metaheuristic to achieve a combined speed, …
Time-dependent routing amounts to design “best” routes in a graph in which arc traversal times may vary over the planning horizon. In the last decade, a number of technological advances have stimulated an increased interest in this field. We survey …
© 2015 Elsevier Ltd.The time-dependent prize-collecting arc routing problem (TD-PARP) determines a number of full truckload orders and plans a vehicle route to maximize profit, which is calculated as total collected revenue (prizes) minus total travel cost. The travel cost …
We study the problem of computing all Pareto-optimal journeys in a dynamic public transit network for multiple criteria, such as arrival time and number of transfers. Existing algorithms consider this as a graph problem and solve it using various graph …
© 2014 Elsevier Ltd.A heuristic algorithm, called LANCOST, is introduced for vehicle routing and scheduling problems to minimize the total travel cost, where the total travel cost includes fuel cost, driver cost and congestion charge. The fuel cost required is …
© 2014 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.The classic vehicle routing problems are usually designed with one edge (or arc) between two nodes. However, sometimes, there are situations in which one node can be …
© 2015 Wiley Periodicals, Inc.Timing problems involve the choice of task execution dates within a predetermined processing sequence, and under various additional constraints or objectives such as time windows, time-dependent costs, or flexible processing times, among others. Their efficient resolution …