The car limit is also determined according to the local actual situation, because the number of cars varies from place to place and the peak of travel is different, so there will be some differences. For example, Beijing is the capital of China with the most traffic restrictions, so there are a lot of local vehicles and foreign vehicles. Therefore, Beijing implements the single and even numbers of local vehicles, and foreign vehicles are not allowed to enter the inner ring, which has alleviated the problem of car congestion to some extent. In addition, in order to control the continuous increase in the number of vehicles, Beijing has introduced a lottery policy, which has increased the difficulty for car owners to buy cars to a certain extent, fundamentally reduced the number of cars, and also caused the situation that it is difficult for Beijing to get a license plate.
Because the number of vehicles in other first-tier cities is different from that in Beijing, corresponding policies have also been introduced to ease traffic pressure through restrictions. For second-tier cities, the number of vehicles has decreased compared with first-tier cities, but congestion is still common in some busy sections. For example, Harbin, Changchun, Shenyang and other cities have introduced policies to restrict some streets to avoid large-scale congestion caused by too many vehicles in key traffic sections.
The city's restriction policy is essentially because too many cars on the road at the same time are prone to congestion, too many cars are easy to scratch and accidents. Accidents will occupy lanes and cause more serious congestion. Due to the increasing number of automobiles, the environment in China is becoming increasingly severe due to automobile emissions. Therefore, not only the city is restricted, but also people are encouraged to travel with low carbon, which is also to alleviate traffic pressure and environmental problems. This is that cities will formulate corresponding restrictions according to the situation.