Traffic congestion has long been a problem of great concern and complaint in big It has caused a lot of inconvenience to people's life and For example， people have to set off well in advance to get to work on time and come back very late when their work is There are many causes for this problem， but the following may be the most important The first cause is the great increase in the number of private Cars take up more space but they carry fewer Some private car drivers， ignoring traffic regulations， drive only for the sake of their own convenience， blocking the way of other public transportation The second cause is the slow and inefficient construction and improvement of the roads and With a large population and numbers of automobiles increasing， some roads still remain unimproved， which will surely lead to The last cause is the insufficient management of the traffic system and the people's lack of awareness of traffic Many pedestrians cross the streets even when the traffic lights are against them， which is an obstacle to the flow of The problem of traffic congestion is an urgent one because it concerns the safety all of We will not resolve it if we only rely on the Let all of us act now to solve
