The ADMS-Roads pollution model is a comprehensive tool for investigating air pollution problems due to networks of roads that may be in combination with industrial sites, for instance small towns or rural road networks. ADMS-Roads combines many of the scientific capabilities of CERC`s air quality management system ADMS-Urban with an easy-to-use interface. Model operation is similar to other ADMS models, making it a simple task for anyone familiar with ADMS 5 to extend their modelling skills to cover road sources.