Abstract
Distribution centers managed by public authorities have been designed to achieve global optimization for efficient logistics and to maintain the urban environment. From the standpoint of social logistics, global optimization should be pursued considering both the environment and the efficiency of business logistics. For obtaining the optimal number and locations of the public distribution centers, we adopt the amount of NOx emitted by trucks as an environmental measure and propose mathematical programming models to minimize both logistics costs and NOx emissions under traffic congestion. These models are applied to the Tokyo metropolitan area and an appropriate policy for the number and locations of public distribution centers in that area can be proposed.
