Legal analysis: Traffic flow and traffic pressure vary from place to place, resulting in different restrictions in different regions. Chifeng City, Inner Mongolia has taken regional restrictions on medium and heavy trucks since June 1 and 202 1. The detailed restricted area is the whole section of Youyi Street in Songshan District, south of the starting point of "Chifeng North Expressway" on Xinghuo North Road, and medium and heavy freight vehicles driving in both directions are restricted within the specified time. It is not limited to other types of motor vehicles.

Legal basis: Article 39 of the Road Traffic Safety Law of the People's Republic of China, the traffic administrative department of the public security organ may, according to the specific conditions of roads and traffic flows, take measures such as diverting traffic, restricting traffic and prohibiting pedestrians.