Modelling the City examines the changing role of urban models in respect to both the need to re-address measures of urban well-being and the need to create models which are in line with key planning problems. This text argues that although there has been progress with a wide range of theoretical problems in urban modelling, modellers have not paid enough attention to the usefulness of their model outputs in indicating the workings of the city or region. The book offers a new geography of performance indicators for the public and private sector based on the principles of spatial interaction.