The Design Research Of Traffic Information Acquisition System Of The Outer Ring Highway In Shanghai Pudong New Area

The Intelligent Transportation Systems (ITS) of the Outer Ring Highway in Shanghai, Pudong NewArea, which is launched by Pudong government recently, is a typical and concrete example for the study in Advanced Transport Management Systems. The Traffic Information Acquisition sub-System (TIAS) is one of the most importmant and fundamental parts in ITS. The accuracy and real-time performance of the data supplied by TIAS have a direct bearing on the performence of ITS.By taking the opportunity of the construction of the ITS of the Outer Ring Highway in Shanghai, Pudong New Area, the article is mainly focused on the research of the Traffic Information Acquisition System. The objects, the functions and the demands of the TIAS are made clear by means of the survey of the research status at home and abroad, the analysis of the requirements of the system and the comparison of different kinds of traffic information acquisition techniques on the market, etc. The structure of the Traffic Information Acquisition System, the installation of the detection devices and the usage of the data acquired are designed on the basic of the research efforts and the road conditions of the Outer Ring Highway in Pudong.