What are the functions of road traffic signs?
1. Provide road information and play the role of road language. 2. Command and control traffic to ensure traffic safety. 3. Guide the road and improve driving efficiency. 4. Provide law enforcement basis for traffic management departments. Road traffic signs are facilities used to manage traffic by transferring information to road users in terms of color, shape, characters, graphics, etc. Road traffic signs are applicable to roads, urban roads and all special roads. They are legal in nature and must be observed by vehicles and pedestrians. Is there anything you don't understand?