Title :
A wireless traffic information collection system in Beijing urban freeways
Author :
Chen, Dewang ; Gong, Xiaoyan ; Zheng, Changqing
Author_Institution :
Inst. of Autom., Acad. Sinica, Beijing, China
Abstract :
The importance of the traffic information collection system (TICS) in traffic control systems of urban freeways is analyzed. The advantages and disadvantages of some types of traffic detectors and data transmission methods are compared. For current TICS, wireless data transmission is suggested. In view of factors such as work principle, transmitting speed, and cost, the CDPD (Cellular Digital Packet Data) network is selected to transmit the traffic data. According to experimental results about the accuracy of RTMS (Remote Transportation Microwave Sensors) and data transmission experiments in Beijing freeways, the suggested scheme using RTMS and CPPD to compose TICS is feasible. Furthermore, the system structure and functional description of this wireless TICS are given.
Keywords :
microwave detectors; packet radio networks; radio data systems; road traffic; traffic control; traffic information systems; Beijing urban freeways; cellular digital packet data network; data transmission methods; remote transportation microwave sensors; traffic control system; traffic data transmission; traffic detectors; transmitting speed; wireless data transmission; wireless traffic information collection system; work principle; Cellular networks; Communication system traffic control; Costs; Data communication; Detectors; Information analysis; Telecommunication traffic; Traffic control; Transportation; Wireless sensor networks;
Conference_Titel :
Intelligent Transportation Systems, 2002. Proceedings. The IEEE 5th International Conference on
Print_ISBN :
0-7803-7389-8
DOI :
10.1109/ITSC.2002.1041248
