Networks and Spatial Economics

, Volume 14, Issue 3–4, pp 629–646 | Cite as

Covering Part of a Planar Network

  • Zvi Drezner
  • George O. Wesolowsky


The problem of locating facilities in a feasible area covering some parts of network links within a given radius is analyzed. The feasible area can be the interior (convex hull of the nodes) of a planar network or any union of convex polygons. Both minimization and maximization of coverage are considered. The single facility location problem is solved by the global optimization approach “Big Triangle Small Triangle.” The multiple facility maximization problem is solved by a specially designed heuristic algorithm. The idea of the heuristic algorithm may prove to work well on other planar multiple facility location problems. Computational experience with problems of up to 40,000 links demonstrate the effectiveness of the single facility and multiple facilities algorithms. The largest single facility minimal cover problem is solved in about one minute and the largest single facility maximal cover problem is solved in less than 4 minutes.


Networks Maximal covering Minimal covering Obnoxious facilities 



This research was supported, in part, by the Natural Sciences and Engineering Research Council of Canada.


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Steven G. Mihaylo College of Business and EconomicsCalifornia State University-FullertonFullertonUSA
  2. 2.Faculty of Business McMaster UniversityHamiltonCanada

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