Application of 3rd Generation Mobile Communication Technology in Urban Transportation Information System
Tao Zhi-xiang · Journal of Highway and Transportation Research and Development · 2007
On the basis of discussing the characteristics of travelers demand of traffic information,traffic information is divided into three categories which include dynamic,static and relevance.In order to fully grasp dynamic traffic information,three layers platform of urban traffic information system is designed based on the third generation mobile communication technology(3G),the composition and working principle of traffic information center are expounded.Then on-board information device are designed,which is one of the most important traffic information terminals.Taking on-board information device together with real-time traffic information to locate the shortest time line as an example,the benefits of urban transportation information system based on 3G mobile communications technology is illustrated.The system can make travelers receive traffic information at anytime and anywhere,so it is more suitable to the characteristics of time-varying and dynamic of the traffic information.