Introduction - If you have any usage issues, please Google them yourself
The east-west and North-South arterial roads intersect at the intersection. Each arterial road has a group of red, green and yellow indicator lights to guide vehicles and pedestrians to pass safely. The north-south direction is the main road with a traffic time of 35 seconds; the east direction is the branch road with a traffic time of 25 seconds. At the last 3 seconds of the traffic time, the green light is off, the yellow light is flashing, and the yellow light is flashing to change the traffic lane. The traffic time is displayed by the digital display, and the yellow light flashes for 3 seconds, not only for another time. Under special circumstances, control the way of passage. Use key switch K1 to control the passage of main road, Branch Road, K2 to control the passage of branch road, main road and special circumstances to control the passage and release. In case of emergency, use key switch K3 to control two red lights.