What traffic signs are there on the expressway?

Usually round and rectangular, with white patterns on a blue background. Used to instruct vehicles and pedestrians to drive in the specified direction and place. Such as going straight, turning left, turning right, stopping, bypassing, etc.

2. Warning signs

Usually equilateral triangle (or diamond), yellow (white) background with black (red) edge, black (or dark blue) pattern. It is used to warn drivers to pay attention to the dangers of the road ahead and the measures that must be taken. For example, predict intersections, road turns, railway crossings, slippery sections, possible rockfall sections, uneven roads, combined traffic, etc.

3. No sign

Usually round, with white background and red edges, red diagonal lines and black patterns. It is a sign that vehicles are prohibited or appropriately restricted according to the situation of streets, highways and traffic flow. Such as no traffic, no parking, speed limit, weight limit, width limit, etc.

4. Guiding signs

Usually rectangular, with white characters and white patterns on a blue (green) background. It is used to indicate the boundaries between towns and villages, the direction and distance of destinations, the entrances and exits of expressways, service areas and places of interest. And all kinds of guidance along the way. For example, national highway numbers, milestones, 100-meter piles, boundary markers, signs, and signs at highway entrances and exits, gas stations, repair stations, parking lots, etc. The auxiliary sign is attached to the main sign and plays an auxiliary role. It can be divided into four categories: vehicle type, time, interval range and distance. Auxiliary signs cannot be set separately.