Traffic signs indicating what role

Traffic direction signs is passed by graphic symbols and text-specific information to manage traffic, indicating the direction of travel in order to ensure the smooth flow of road traffic safety facilities, mainly for highways, urban roads and highways all dedicated, has the nature of the Act, vehicles, pedestriansYou must comply.
1, the warning signs to warn vehicles and pedestrians pay attention to signs of a dangerous place;
2, prohibition signs are prohibited or restricted vehicles, pedestrians traffic behavior flag;
3, directional signs indicating vehicles and pedestrians traveling signs;
4, traffic signs guide signs is to pass the track direction, location, distance marker information.
Traffic signal signs traffic separation can not be achieved on a local road intersections for traffic flow in time to assign right of way traffic control measures. The role of traffic signals are assigned on scientific road vehicles, pedestrians right of way, making it orderly smooth passage. Traffic lights, traffic signs and markings shall meet the national standards.