informative traffic signs, words or symbols to guide transfer restrictions, warnings or instructions of road infrastructure. Also known as road signs, road cardboard traffic signs. Generally based on safety, setup striking in traffic signs, the clear, bright road traffic signs are traffic management, to ensure road safety and smooth important measures. There are many types of road traffic signs, can be divided into a variety of ways: the main signs and auxiliary signs; movable signage and stationary signs; illuminated signs, illuminated signs and reflective signs; and to reflect changes in the environment variable message road traffic signs, traffic divided into the main and auxiliary flag flag flag two categories. Main flag warning signs, prohibition signs, directional signs and guide signs four. Road signs shape, color, size, design type and location settings according to the current "road road traffic signs and markings" (GB5768) of the regulations. All traffic warning signs should be done properly positioned, accurate, complete, striking and beautiful
