There is a growing interest in the development and the use of large-scale planning models. In this
paper, we describe the first step of a project to integrate UrbanSim, a dynamic microsimulation land use
model, and METROPOLIS, a dynamic traffic model. This is the first attempt, to our knowledge, to
integrate a dynamic land use model and a dynamic traffic model. We briefly describe the two models and
propose a unified framework for their integration. Within this integrated framework we develop a model
of residential location choice, with endogenous housing prices and traffic. The study area for this research
is the Ile-de-France (Paris region), for which we provide empirical results.
