Introduction - If you have any usage issues, please Google them yourself
1) direction vehicle release 20 seconds. What is the direction of red and green light at 20 seconds,
2) 20 seconds later, the yellow lights flashing warning vehicles with 2 seconds, switch to the traffic lights. This is still remain red light north-south direction. In the south during the red light, in the direction of the digital display tube of 2 per plan (minus 1), from 20 to 2001.
3) the yellow lights flashing direction to 2 seconds later, the south direction release 20 seconds. What is the direction of the north-south direction of red and green and light 20 seconds,
4) north-south direction after 20 seconds to release the north-south direction, yellow lights flashing warning, with 2 seconds will switch traffic lights. This direction remains red light.
5) south of yellow lights flashing direction after 2 seconds, then into things direction vehicle release 20 seconds. Repeat this cycle.