In recent years, vehicle ownership is increasing tremendously in the metropolitan areas. Traffic problems become more and more serious, such as traffic congestion, accidents and environmental pollution. As we know, transit vehicles can transport more passengers at a time. Its fuel consumption and operation cost per person are both comparatively less. Therefore, to settle the problems mentioned above, the best way is to develop public transportation. However, the current public transportation system in China is backward. (1) The velocity of transit vehicle is slow (2) Transit vehicle arrives at station inaccurately (3) Transfer is inconvenient (4) Emergent incident can't be tackled in time (5) There is no real-time information service. The basic reason is that the level of service in the public transportation is too low. Recently, there are several cities in China integrating advanced electronic technologies into transit dispatching, such as No.981 line in Shanghai, No.K16 and K56 lines in Hangzhou, No.1 and 4 lines in Beijing. Nevertheless, because these are only several testing lines, the whole public transportation system is still not upgraded. And then they cannot coordinate dispatching in the transit network. Now, the city of Changchun in China, is researching and developing the Advanced Public Transportation Dispatching System (APTDS). The goal is to revitalize transit by directly improving service, increasing transit efficiency and reducing operating cost, as well as by producing direct benefits for travelers such as reduced travel time, increased safety and security, and reduced stress in dealing with transit unreliability. The main objective of this study is to illustrate the implementation of APTDS. The paper is divided into four sections. First, introduce the architecture of APTDS and its components. Second, review the technologies that enable real-time control. Third, analyze the benefits of APTDS. In the final part, provide the conclusion.
Abstract