Abstract
A retail activity allocation/shopping trip assignment model is developed, in which the zonal retail price as well as the travel times are in equilibrium. The model is based on two main assumptions. First, in each zone, retailers maximize their profits from retail sales. Second, prospective shoppers in each residential zone select their shopping destination so as to minimize the cost of shopping and the cost of traveling. Use of the model to simulate the behavior of the commercial activity and travel system is illustrated. This paper appears in transportation research record no. 1262, Planning, management and economic analysis 1990.