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Consistent vehicle routing problem with service level agreements: a case study in the pharmaceutical distribution sector

Title
Consistent vehicle routing problem with service level agreements: a case study in the pharmaceutical distribution sector
Type
Article in International Scientific Journal
Year
2019
Authors
Pedro Campelo
(Author)
Other
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Fábio Neves Moreira
(Author)
Other
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Pedro Amorim
(Author)
FEUP
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Journal
Vol. 273 No. 1
Pages: 131-145
ISSN: 0377-2217
Publisher: Elsevier
Indexing
Publicação em ISI Web of Science ISI Web of Science
INSPEC
Other information
Authenticus ID: P-00N-ZX8
Resumo (PT):
Abstract (EN): In this paper, a mathematical model is developed to tackle a Consistent Vehicle Routing Problem, which considers customers with multiple daily deliveries and different service level agreements such as time windows, and release dates. In order to solve this problem, an instance size reduction algorithm and a mathematical programming based decomposition approach are developed. This solution approach is benchmarked against a commercial solver. Results indicate that the method solves instances of large size, enabling its application to real-life scenarios. A case study in a pharmaceutical distribution company is analyzed. Consistent routes are planned for several warehouses, comprising hundreds of orders. A simulation model evaluates the performance of the generated route plans. Significant improvements in terms of the total distance traveled and the total travel times are obtained when compared to the company's current planning process.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 15
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