What does it mean when the ETC beeps three times at a highway speed checkpoint?
1 Answers
When the ETC beeps three times at a highway speed checkpoint, it indicates that the system is recording the route the vehicle is taking, specifically which highway the vehicle is traveling on. Normally, the ETC beeps twice only when identifying the vehicle upon entering the highway and does not continue beeping. ETC stands for Electronic Toll Collection, which is an automatic toll collection system for highways or bridges. More information about ETC is as follows: 1. Operating Principle: The system uses dedicated short-range communication between the onboard electronic tag installed on the vehicle's windshield and the microwave antenna in the ETC lane at the toll station. It leverages computer networking technology and backend banking system settlement processing to enable vehicles to pay tolls without stopping when passing through highway or bridge toll stations. 2. Improved Traffic Capacity: It significantly enhances the traffic capacity at entry and exit points, improving the user experience for vehicle owners and achieving the goal of convenient and efficient parking lot access. It allows drivers to avoid long queues at manual toll booths by directly driving through the less congested ETC-only lanes. One ETC lane's service capacity is equivalent to that of 3 to 5 manual exit lanes. 3. Precautions for Using ETC: The ETC transaction zone is 8 meters. Once a vehicle enters this zone, the toll is automatically processed. When there is a vehicle stopped ahead, maintain a distance of at least 10 meters to prevent automatic sensing and inadvertently paying the toll for the vehicle in front.
