Department of Economics and Business Economics

A fast heuristic for large-scale capacitated arc routing problems

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The purpose of this paper is to develop a fast heuristic called FastCARP for the solution of large-scale capacitated arc routing problems, with or without duration constraints. This study is motivated by a waste collection problem in Denmark. After a preprocessing phase, FastCARP creates a giant tour, partitions the graph into districts, and construct routes within each district. It then iteratively merges and splits adjacent districts and reoptimises the routes. The heuristic was tested on 264 benchmark instances containing up to 11,640 nodes, 12,675 edges, 8581 required edges, and 323 vehicles. FastCARP was compared with an alternative heuristic called Base and with several Path-Scanning algorithms. On small graphs, it was better but slower than Base. On larger graphs, it was much faster and only slightly worse than Base in terms of solution quality. It also outperforms the Path-Scanning algorithms.

Original languageEnglish
JournalJournal of the Operational Research Society
Volume69
Issue12
Pages (from-to)1877-1887
Number of pages11
ISSN0160-5682
DOIs
Publication statusPublished - 2018

    Research areas

  • ALGORITHMS, Arc routing, COLLECTION, DESIGN, Denmark, SEARCH, districts, heuristics, waste collection

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