Introducing radiality constraints in capacitated location-routing problems

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Artigo de periódico

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Resumo

In this paper, we introduce a unified mathematical formulation for the Capacitated Vehicle Routing Problem (CVRP) and for the Capacitated Location Routing Problem (CLRP), adopting radiality constraints in order to guarantee valid routes and eliminate subtours. This idea is inspired by formulations already employed in electric power distribution networks, which requires a radial topology in its operation. The results show that the proposed formulation greatly improves the convergence of the solver.

Abstract

Assunto

Engenharia elétrica, Veículos, Veículos elétricos, Engenharia de computação

Palavras-chave

Capacitated vehicle routing problem, Capacitated location-routing problem, Combinatorial optimization, Radiality constraints, Spanning tree, Vehicle routing problem

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https://www.growingscience.com/ijiec/Vol8/IJIEC_2017_8.pdf

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