城市交通安全设施都有着相应的施划标识要求，否则就会弱化甚至失去呵护交通安全的作用。比如说城市交通安全岛，本来是供行人走到马路中间等待车辆时使用的，但如果没有被涂上黄黑相间的警示色，它作为交通安全设施的意义和价值就会大大降低，对行人的保护作用也会降低
Urban traffic safety facilities have corresponding marking requirements, otherwise they will weaken or even lose the role of protecting traffic safety. For example, the urban traffic safety island is originally used by pedestrians when they go to the middle of the road to wait for vehicles, but if it is not painted with yellow and black warning color, its significance and value as a traffic safety facility will be greatly reduced, and the protection function of pedestrians will also be reduced