What is the traffic sign with black circle, white background and 80 diagonal lines?

Cancel the speed limit sign of 80 kilometers per hour.

This sign is located at the starting point of the speed limit section of the expressway or other roads. This is the minimum speed limit sign, indicating the minimum speed limit for motor vehicles to enter the road ahead. It is required that the minimum speed of motor vehicles should not be less than 80 kilometers per hour under the condition of good road conditions ahead, and should be located at the starting point of speed limit sections of expressways or other roads and at the appropriate position behind the intersections of various overpasses.

build

Speed limit signs in China are mainly based on GB5768-2009 Road Traffic Signs and Marking, aiming at ensuring smooth traffic and driving safety, and are set in combination with road alignment, traffic conditions and facilities along the line. It can provide correct and timely information for road users through the guidance of speed limit signs and other signs, and reach the destination smoothly and quickly.

The speed limit value is also determined according to the 85% speed in the state of free traffic.