*IBM Research – China, ZGC Software Park, Beijing, China, 100193
†IBM Singapore, Changi Business Park, Singapore, 486072
‡Puhua Guaranty Limited Company, Beijing, China, 100032
Traffic plays an important role in modern urban society. Based on the report from the United Nations Population Division, almost 64 billion people will live in urban areas in 2050 and the annual growth rate is around 1.5% (World Urbanization Prospects, 2007). Obviously, it will cause an increase in trip demand. Because of the limitations of traffic resources, this increment will lead to ...