Research On The Theory,Technology And Application Of Advanced Transportation Information Systems

Intelligent Transportation Systems (ITS) is the application of computer, communication, and control technologies to help drivers and operators make smart decisions while driving smart vehicles or controlling traffic on smart road networks. It bases on the modern advanced science and technology. ITS covers a wide range of transportation systems, some of which have been implemented for many years while others are just getting deployed or are still under research and development for future application. The main function of ITS is to improve transportation system operation, which in turn support the transportation objectives of increasing efficiency, safety, energy saving and environmental quality.In the recent century, the world vehicle number increased rapidly while the world economy grew. The available roads no longer meet the economy development. The traffic status became worse and worse. Some developed country began to build more roads in order to solve the traffic problem. But it's proved that this is not the good way to solve the problem, the best way is using the ITS technology to do the work on the premise of appropriate road networks.As the content of the ITS service to travelers, information is very important. Therefore Advance traveler Information Systems (ATIS) becomes a very important part of ITS. ITS keeps the human at the center, striving to offer the best service is the objective of ATIS. ATIS is not only a part of ITS, but also an important part of information society. The research and implement of ATIS is of great significance. ATIS makes the traffic information more accessible, the travel more alternative and convenient, and advances the information society development.ITS is a road transportation system. It needs many geographical special data, which ensures efficient traffic guidance. And transportation Geographical Information Systems (TGIS) emerges which makes GIS as a part of ITS to orange and manage the geographical data, create electronic map.This dissertation gives series introductions to ITS includes the configuration and the key technology, discusses the theory of ATIS in detail first, then discusses the Chinese ATIS configuration and related technology. At last, it gives an approach tothe city transportation information query system which includes the function, basic constitutes, electronic map making and available method, and discusses the shortest path algorithm deeply.