MTC is a traditional expressway toll collection system, and it and ETC (Electronic Toll Collection System) are both intelligent transportation systems.
When a car enters the MTC lane, the Automatic Vehicle Classification System (AVC) automatically classifies the vehicle information and then tells the software system what kind of vehicle the car belongs to. According to this information, the software system tells the card reader how much toll should be charged. After the transaction is completed, the software system sends a command to the automatic railing to let the car pass and complete the charging.