There are many traffic problems but traffic jams is the most prominent. The main cause of this problem is the population explosion in urban areas, causing overpopulation. There is too much traffic on the highway, making it inconvenient to travel. It also takes a lot of our time. In addition to traffic congestion, traffic accidents are also a serious problem. There are many causes of an accident. The first is due to the carelessness, the lack of awareness of the pedestrians. In addition, partly due to too many vehicles, making it difficult to move and cross the road. Next is the roads that are not safe enough. There were many potholes, and the road was too narrow and muddy. Traffic problems will be prevented if we obey the law.