Advances in Transportation Studies (ATS) is a four-monthly refereed journal that contains in-depth, state-of-the-art international review papers on the most recent outcomes of advanced research in the field of Road and Highway Engineering, with a particular emphasis on the safety, effectiveness, efficiency and sustainability of transport. Topics that are discussed examine design standards and regulations, impact of human factors on the design, geometry and construction of facilities, pavement design and management for safety improvement and impact on the environment. ATS's focus makes the journal an essential reading for Transportation Scholars and Researchers, Transportation Facilities Engineers, Planners and Modellers. Moreover, special issues on particular topics, such as policy analysis, formulation and evaluation, interaction with the political and socio-economic environment, management and evaluation of transportation systems are published from time to time, in order to provide Administrators and Policy Analysts with a wide range of information.