Models for simulating air quality due to vehicles and their effect on runoff quality in an urban environment and their coupling are examined. In order to achieve this aim, the selection of models (traffic, emission, atmospheric dispersion, stormwater) must be carefully made according to the special requirements and level of details needed for the integrated system. Therefore a variety of these models are reviewed. Although a fair amount of research has been conducted in the past to link air pollution and road traffic, many questions related to spatio-temporal scales, domains of validity, consistency among models and interfaces between models remain open. Furthermore, the link between traffic emissions, atmospheric deposition and the contamination of water runoff in urban areas has not been treated yet in a comprehensive manner. The aim of this study is to review the current status of the relationships between traffic, emissions and air and water quality models, to recommend an integrated modelling approach and to propose some directions for advancing the state of the art.