Standing Committee of the National People's Congress, Law of the People's Republic of China on Road Traffic Safety (2003)
“ Article 39 In light of the specific road conditions and the volume of traffic flow, the traffic control department of the public security organ may take such measures as regulating, restricting and prohibiting the flow of traffic with regard to motor vehicles, non-motor vehicles and pedestrians. Under conditions of large-scale mass activities or construction on a wide scale, for which restrictive traffic measures need to be taken, or decisions directly relating to the road traffic activities of the public need to be made, the matter shall be made known to the public in advance. ”
