Road signboards are a type of traffic facility used to indicate, caution, and guide traffic, commonly placed on both sides of roads or in the middle. The purpose of road signboards is to direct vehicles and pedestrians to follow traffic rules, remind of traffic safety, and indicate driving directions.

Road signboards typically feature the following characteristics and functions:

Directional Signs: Road signboards can indicate road names, vehicle traffic directions, mileage information, etc., assisting drivers in confirming their destination or the road route.

Traffic Warnings: Road signs can indicate speed limits, no parking, lane changes, and pedestrian awareness, reminding drivers to pay attention to traffic safety.

Caution: Some road signs are used to indicate hazardous sections, such as accident-prone areas, sharp turns, and steep grades, to remind drivers to drive cautiously and reduce the incidence of traffic accidents.

Pedestrian Protection: Certain road signage is used to indicate crossing points for pedestrians or to remind drivers to slow down and be attentive to pedestrians, enhancing the safety of pedestrian crossings.

Nighttime Reflectivity: Some road sign boards are designed with reflective materials, enhancing visibility at night or during adverse weather conditions to ensure safe road travel.

Road signboards must be designed and installed according to relevant standards and regulations, and must be cleaned and maintained regularly to ensure they are clear and visible for effective traffic information guidance.