ETC development pushes combination of RFID and ITS

The combination of Radio Frequency Identification (RFID) and Intelligent Transportation System (ITS) makes the Electronic Toll Collection (ETC). On one hand, ETC can help the recovery of the investment in transport infrastructure. On the other hand, it is also an effective way to ease traffic congestion in the charging station area, thus reducing environmental pollution. So nowadays, many countries first develop ETC to accelerate the development of the national Intelligent Transportation. With serious traffic problems, the application of ETC in China is widely promoted. In this paper, ETC in China is taken for an example to introduce the key technologies of it and to explain how it works to improve traffic quality.