A Fast and Scalable Heuristic for the Solution of Large-Scale Capacitated Vehicle Routing Problems

作者：Luca Accorsi, Daniele Vigo · 发表于：Transportation Science · 年份：2021 · DOI：10.1287/trsc.2021.1059 · 被引用次数：79 · 研究领域：Vehicle Routing Optimization Methods、Transportation and Mobility Innovations、Optimization and Packing Problems

In this paper, we propose a fast and scalable, yet effective, metaheuristic called FILO to solve large-scale instances of the Capacitated Vehicle Routing Problem. Our approach consists of a main iterative part, based on the Iterated Local Search paradigm, which employs a carefully designed combination of existing acceleration techniques, as well as novel strategies to keep the optimization localized, controlled, and tailored to the current instance and solution. A Simulated Annealing-based neighbor acceptance criterion is used to obtain a continuous diversification, to ensure the exploration of different regions of the search space. Results on extensively studied benchmark instances from the literature, supported by a thorough analysis of the algorithm’s main components, show the effectiveness of the proposed design choices, making FILO highly competitive with existing state-of-the-art algorithms, both in terms of computing time and solution quality. Finally, guidelines for possible efficient implementations, algorithm source code, and a library of reusable components are open-sourced to allow reproduction of our results and promote further investigations.