2. The octagon and a stop stand for "stop and give way". It is a traffic ban sign with the word "stop" in the middle of the octagon, which means to stop at the stop line of the intersection and wait and see before driving. It means that vehicles must stop outside the stop line to observe and confirm safety before they are allowed to pass.
Extended data:
1, set the stop yield sign under the following circumstances:
(1) A branch road intersection flush with the main road with large traffic flow;
(2) unattended railway crossing;
(3) Other places that need to be set up.
2. Except for individual signs, the colors of traffic ban signs are white background, red circle, red bar, black graphics and graphic layering. The shape of the prohibition sign is round, but the "stop and yield sign" is octagonal, and the "slow down and yield sign" is an equilateral triangle with the vertex down.
References:
Baidu Encyclopedia _ Stop to make way? Baidu Encyclopedia _ Forbidden Sign