Road signs in the People's Republic of China are specified in the Guobiao standard .
China's traffic signs closely follow those used in Europe, the US, and Japan. However, China is not a signatory to the Vienna Convention on Road Signs and Signals.
The road signs used in the special administrative regions of Hong Kong and Macau differ from those used in Mainland China due to colonialism.
Warning signs are triangular in shape, as in Europe, but unlike European countries, warning signs in China have a black border and a yellow background instead of a red border and a white or yellow background. This makes it one of the few countries in the world to use this type of warning sign.