Asian Transport Studies (ATS) is an international journal published under the supervision of the Eastern Asia Society of Transportation Studies (EASTS), which was founded in 1994 (http://www.easts.info/index.html). EASTS is an international cooperative society of researchers and practitioners from the Asian region, with its headquarters in Tokyo, Japan. Its primary objectives are to foster and support excellence in transportation research and practice and to stimulate professional interchanges in all aspects and modes of transportation. It organizes an international conference on transportation studies once every two years.