Today, traffic jams cause a lot of consequences for society. There are many reasons why traffic accidents happen, but the main reasons are the following: There are too many private vehicles circulating on the road, causing traffic problems. This results in traffic overload on the roads. Second, the planning of big cities is not reasonable, with large and wide roads, few people pass through and narrow roads always have a traffic. The number of vehicles is extremely large. Third, the consciousness of traffic participants is not good, it is difficult to regulate traffic. Road construction has many harmful effects such as: we breathe a large amount of polluted gas emitted from the forest. Chaotic vehicles cause respiratory diseases; Emissions from these vehicles are continuously released even though they are still standing still, which is one of the causes of environmental pollution becoming more and more severe; costly poor time and waste of fossil materials such as gasoline, oil, etc. So what is the solution? We need to reduce the use of personal vehicles and use them instead. use public transport such as buses and, later, subways. Re-planning of major cities and economic centers will greatly improve traffic problems and create a good view of international friends. economy about that city. And most importantly, it is changing people's consciousness, otherwise it will never give the desired results because people are directly involved in traffic, is the root to solve all social problems. Only by doing the above things can we solve this problem of cooperation.