Tianjin has four restrictions on trucks. It is forbidden to drive on the outer ring road from 7: 00 to 19 every day, and it is forbidden to drive on the roads within the outer ring road (excluding the outer ring road) from 7: 00 to 22: 00 every day. The roads within the outer ring road (including the outer ring road) are prohibited from passing by medium and heavy trucks for 24 hours, and some road sections are set with no truck signs to restrict the passage of trucks.

Legal basis:

"Road Traffic Safety Law of the People's Republic of China" Article 39 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, restricting traffic and prohibiting traffic for motor vehicles, non-motor vehicles and pedestrians. In case of large-scale mass activities and large-scale construction, etc. If it is necessary to take measures to restrict traffic or make decisions directly related to public road traffic activities, it shall be announced to the public in advance.