Abstract
The Pickup and Delivery Problem with Time Windows, Scheduled Lines and Stochastic Demands (PDPTW-SLSD) concerns scheduling a set of vehicles to serve a set of requests, whose expected demands are known in distribution when planning, but are only revealed with certainty upon the vehicles' arrival. In addition, a part of the transportation plan can be carried out on limited-capacity scheduled public transportation line services. This paper proposes a scenario-based sample average approximation approach for the PDPTW-SLSD. An adaptive large neighborhood search heuristic embedded into sample average approximation method is used to generate good-quality solutions. Computational results on instances with up to 40 requests (i.e., 80 locations) reveal that the integrated transportation networks can lead to operational cost savings of up to 16% compared with classical pickup and delivery systems.
Original language | British English |
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Pages (from-to) | 34-51 |
Number of pages | 18 |
Journal | Transportation Research Part B: Methodological |
Volume | 91 |
DOIs | |
State | Published - 1 Sep 2016 |
Keywords
- Freight transportation
- Heuristic algorithm
- Pickup and delivery problem
- Scheduled lines
- Stochastic demands