The account of expressway ETC management unit has been connected with the bank. When you pass the toll station, it will be transmitted to the expressway management company through the toll station network, and then the information you passed and the fees to be deducted will be transmitted to the bank through the management company, and the bank will write the charging information into your signal card. This step is equivalent to swiping your credit card in the supermarket (your credit card has an electronic account in the bank, and the bank will automatically deduct your funds without swiping it).

ETC (Electronic Toll Collection) is an electronic toll collection system. It is an electronic toll collection system for roads, bridges and tunnels that is being developed and popularized internationally. With this system, as long as the owner installs the sensor card on the window and pre-stores the fee, there is no need to pay or park manually when passing through the toll booth, and the high-speed fee will be automatically deducted from the card. 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 ETC lane is used by vehicles equipped with ETC vehicle-mounted equipment, and electronic toll collection is adopted. ETC toll collection system is the most advanced road and bridge toll collection method in the world.