A Framework for Constructing Network Equilibrium Models of Urban Location

Recent advances in network equilibrium modeling provide efficient algorithms for solving the urban trip assignment problem. These models can be extended to incorporate the trip distribution problem with two types of variable demand functions. By reinterpreting the zone-to-zone trip variable, these models can be viewed as urban location models. This paper synthesizes these results, and shows how several urban location models can be derived from the mathematical framework based on the network equilibrium problem.