Developments in Flow-Based Location-Allocation Models
Location-allocation (LA) models optimally locate service facilities and allocate demand to them. They have been used to locate many types of facility and service (Hodgson et al., 1993). Many different objectives have been optimized in the literature, the most popular being of distance-minimizing or demand-covering types. Whatever the objective, almost without exception, demand is conceived of as occurring in points from which patrons travel to facilities, or from which services are delivered to patrons. There is a growing recognition that not all demands are point-based (expressed by patrons at points), but that demands may be flow-based (expressed by flows, by patrons who are traveling on a pre-determined journey). In this paper, I consider several models which locate facilities to serve flow-based demands.
KeywordsFacility Location Inspection Station Maximal Covering Location Problem Naive Strategy Traffic Zone
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