Integrated location — transportation analysis; a decomposition approach

Land use planning is generally analysed in terms of either activity location or transfortation planning. Often further reductions of mutual interrelations are made a priori. It is the purpose of this paper to discuss an integrated model framework for urban planning based on an explicit consideration of the total interdependency pattern. A principally hierarchical decomposition scheme for the expansion and use of urban infrastructure is proposed and the structure of appropriate sub-models is outlined. Tentative results from the model testing are given. In the analysis of the sub-models various interdependencies not accounted for by a strict hierarchical model structure are observed. The significance of such model interactions in relation to efficiency criteria is considered in some detail.