As early as the Zhou Dynasty in China, there is a "row of trees to watch the road" record. In ancient Roman times, there were landmarks and signposts on the military boulevard from Rome to Gap. But most people think that the origins of modern road traffic signs should be traced back to Britain in the December 1879-the Seckling club, a local organization that participates in the cycling Union, which has a warning sign on the road to the mountains: "To Secklister-this hill is dangerous." The trailer, painted on the iron plate, became the earliest recorded road traffic sign ever written. The first administrative department to set up traffic signs on the road was the British-Gloucester Marsh Road Council in Britain and England. It set a warning mark in October 1881 in the Mortern. In October 1901, after getting permission from the Gloucester County Legislature, the British Auto Alliance set up the world's first warning sign for cars in the Gloucester's Badlip Hill. Subsequently, in accordance with the enactment of the Motor Vehicles Ordinance in 1903, the relevant British administration obtained the power to set up traffic signs, and in the same year March 10 to the local administrative bureau issued a "proposed following traffic signs" document: That is, a 457 mm diameter (18 inches) of white snake on the board, indicating speed limit The red circle is forbidden, the red triangle represents the warning, the diamond represents the intersection, the dangerous corner, the sharp spot. Since not all the local authorities accepted the proposal at that time, there was a lack of uniformity in traffic signs, which was not conducive to the confusion that motorists had identified immediately. It was not until 1930 that the Uniform Traffic Signs Act was recognised throughout the UK, making traffic signs more standardized.