Driving control signal system by means of red, yellow and green colors of circular signal and the arrow on the picture, with time change method, distribution of different directions of traffic travel way; Or by only contains the circle of red, and green color signal, to control one-way traffic. Usually in the fork in the road or one-way wheel put controls on the journey.

 

Punctual in accordance with the working methods are divided into: light traffic induction signal to adjust light pedestrian-only light department cooperation traffic control signal, used to attach "standing on the pedestrian" and "walking pedestrians" picture of the square red, green color signal, control the amiable form of pedestrians crossing the street, at the fork in the road or the road in the middle.

 

Punctuality lights pedestrian affects special traffic signal lights include: lane control signals is to fork, and the arrow on the picture attached square red, green color signal, distribution rights to use of lanes, in road middle or toll station. Trust for four phase intersection signal when the light (set in T font and font Y the intersection and stop turn left turn right, stop, stop into the intersection, inhibits the left time). Trust for five phase intersection signal when the light (set up at the intersection of three line way to four lanes, and in turn left red, yellow, green arrows, green arrow, and turn right to advance green arrow number five light signal to control the vehicle travel and suspension, in addition the light left fixed point set to red light turn left turn left green arrow to allow traffic).

 

Railway level crossing signal lamp is double flash red sign with side by side in the circle, to stop pedestrians and vehicles crossing the railway crossings, set before the railway crossings. Pedestrian crossing signals in a round of double side by side flash yellow sign, tell near the vehicle should be slow down, in the event of a pedestrian crossing must pause for pedestrians crossing the street, priority in zebra pedestrians crossing in front of the line. Special light signal system with a single mirror light red or yellow sign, told to keep an eye on the front of the vehicle road conditions, should first stop or slow down, depending on the road again to amiable form, at the fork in the road or dangerous road before.