ETC is an electronic toll collection system and an automatic toll collection system for expressways or bridges. The vehicle-mounted electronic tag installed on the windshield of the vehicle communicates with the microwave antenna on ETC lane of the toll station in a special short distance, and the computer networking technology is used to make background settlement with the bank, so that the vehicle can pay the highway or bridge toll without stopping.
Automatic electronic toll collection system ETC is one of the service functions of intelligent transportation system, which is especially suitable for expressway or bridge and tunnel environment with heavy traffic. At present, there is a special ETC toll collection channel at the expressway toll collection office. As long as the owner installs an induction card on the front windshield of the vehicle and pre-stores the fees, there is no need to pay or stop manually when passing through the toll booth, and the high-speed toll will be automatically deducted from the card, which can realize automatic charging. This charging system charges less than two seconds for each car, and the capacity of the charging channel is 5 to 10 times that of the manual charging channel. The use of automatic electronic toll collection system can make expressway toll collection move towards paperless and cashless management, fundamentally put an end to the loss of toll tickets and solve the financial management confusion in expressway toll collection. In addition, the implementation of fully automatic electronic toll collection system can also save capital construction costs and management costs.