Legal analysis: there is a traffic limit.
Taking Xining City as an example, there is a traffic restriction.
Legal basis: "on the further optimization of Xining City, urban roads and vehicles limited to the management of the circular"
A, the authorized mass of 1 ton (including 1 ton) more than to the following 5 tons of fuel trucks, the authorized mass of 5 tons (including 5 tons) more than the new energy trucks, all types of motorcycles, and unregistered e-bikes, electric tricycles, daily from 07:00 to 21: 00 in the following from to the road area restrictions. 00 in the following from the road to the area within the scope of restricted access: east from Huangshi Road, west to Tonghai Road; south from Kunlun Avenue, north to Qilian Road (from the road is not included in the scope of restricted access). Outside the region at the same time to restrict access to the road for: Xiaoqiao Street (south of Tianjin Road), Menyuan Road (Haihu Road to Chaoyang East Road), Chaoyang West Road (Qilian Road to Tianjin Road). The roads that can be accessed in this area are: Chaoyang East Road, Tianjin Road, Xingzhi Road, Haihu Road, Tongren Road Viaduct, the main line of Fenghuangshan Expressway and its connecting ramps.
Two, the authorized mass of 5 tons (including 5 tons) or more fuel trucks, daily 07:00 to 21:00 in the following from the road to the area within the scope of the restrictions on access: east from Ming Xing Road, west to Huangshui Road; south from Fengqing Road, north to Tianjin Road (from the road is not included in the scope of the restrictions on access). Outside the region at the same time to limit the passage of the road for: Ning Zhang highway (Tianjin Road to Liu Jiagou Road), Chaoyang East Road (south of Xincun Road), Haihu Road (south of Tianjin Road), Qaidam Road (east of Tonghai Road), Tongren Road Viaduct, Times Avenue (Fengqing Road to the north) and phoenix mountain expressway Huangzhong Road, Delingha Road, Jianguo Road, labor road, Haihu Road, Antelope Road, Tonghai Road, seven ramps to the interchanging mouth. The region can pass the road for: phoenix mountain expressway main line, south xichuan road (west of tonghai road), tianjin road, east chao yang road (north of xincun road).
Three, low-speed trucks, three-wheeled vehicles, tractors, daily 07:00 to 21:00 in the following from the road to the road within the area of the prohibition of traffic: east from Mingxiang Road, west to Huangshui Road; south from Fengqing Road, north to Tianjin Road (from the road is not included in the scope of restrictions). The region at the same time to limit the passage of the road for: Phoenix Hill Expressway main line and its links to the ramps.
Four, authorized passenger 19 (including 19) or more passenger cars, daily 07:00 to 21:00 in the following from the road to the area of restricted access: east from Jianguo Road, west to Tonghai Road; south from Kunlun Avenue, north to Qilian Road (from the road is not included in the scope of restricted access). The region can pass through the road: Xingzhi Road, Haihu Road, Tongren Road Viaduct, Phoenix Hill Expressway main line and its links to the various ramps.
Fifth, all kinds of motorcycles, non-motorized vehicles and pedestrians 24 hours a day in the Times Avenue Viaduct upper deck, Tongren Road Viaduct, Kunlun Bridge upper deck bridge, **** and the bridge on the upper deck bridge, Huangshui Road Viaduct, the Xiakou Road Viaduct, the main line of the Phoenix Hill Expressway and its links to the ramps are strictly prohibited.
Six, daily 07:00 to 09:00, 17:00 to 20:00 two peak hours, sprinkler, dust suppression vehicles, sweeping vehicles, food suction trucks, garbage trucks, aerial work trucks, medical waste trucks, landscape trucks, and the total mass of 4.5 tons (including 4.5 tons) more than the postal trucks and courier trucks, such as special operations vehicles, shall not be in the second article of the Notice clearly restricted Areas and roads within the passage and operation.
Seven, municipal, communications, electric power, water supply, drainage, gas and other engineering vehicles with a gross mass of 4.5 tons (including 4.5 tons) or more, dump trucks, crane trucks, trailers and special structure of the vehicle, in addition to emergency rescue missions, shall not be in the second article of the Notice of the clear restrictions on the passage of the time period, area and road traffic and operations.