M. John Hodgson

Learn More
The multi-vehicle covering tour problem is de"ned on a graph G"(<6=, E), where = is a set of vertices that must collectively be covered by up to m vehicles. The problem consists of determining a set of total minimum length vehicle routes on a subset of <, subject to side constraints, such that every vertex of = is within a prespeci"ed distance from a route.(More)
Location-allocation models can play an important role in making primary health care facilities more accessible to rural populations in the developing world. Traditional models, however, have failed to deal realistically with the fact that health care systems are hierarchical in nature, and that benefits and utilization decline with distance. In this paper,(More)
  • 1