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Multi-period routing in Hybrid Courier Operations
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Author(s): Theodore Athanasopoulos (University of the Aegean, Greece)and Ioannis Minis (University of the Aegean, Greece)
Copyright: 2011
Pages: 20
Source title:
Supply Chain Optimization, Design, and Management: Advances and Intelligent Methods
Source Author(s)/Editor(s): Ioannis Minis (University of the Aegean, Greece), Vasileios Zeimpekis (University of the Aegean, Greece), Georgios Dounias (University of the Aegean, Greece)and Nicholas Ampazis (University of the Aegean, Greece)
DOI: 10.4018/978-1-61520-633-9.ch011
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Abstract
Appointment-based logistics systems, such as special courier services, or repair / maintenance services, face ever increasing competitive pressures for efficiency and on-time performance. For example, in addition to typical (core) operations, courier service providers lately deal with micrologistics activities, such as bulk product deliveries. The promise dates of such deliveries have some flexibility within a pre-specified service level. In this hybrid environment, bulk deliveries are typically planned on an ad hoc basis, without taking explicitly into account the workload for core operations, a practice that may lead to inefficiencies. This chapter proposes a new method to perform assignment of service requests (calls) with some flexibility taking into account expected routes in a multi-period horizon. The problem is solved on a rolling horizon basis in order to address the dynamics of arriving calls. The method is tested through several theoretical examples, as well as in an extensive industrial case, and appears to be superior to current methods used in practice.
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