Crowding and cramping is now a very common problem in Vietnam. There are many people and vehicles in big cities, so traffic congestion is an unavoidable problem. People cannot get to work on time because they are always stuck in rush hour. Besides, traffic congestion system will cause many serious problems. For example, an ambulance and a fire engine cannot arrive in time to complete the task, causing loss of life and property. It also costs a lot of manufacturers money when their products can't meet them.

Today, the trend from rural to urban migration is becoming more and more popular. Everyone wants to find better job opportunities and a better life in the bustling metropolis. But besides the positive aspects it brings, urban life is becoming more and more challenging for immigrants.Living in crowded places is very noisy, sometimes even unnatural. Not only will it gradually become more polluted. I also live in less space than in sparsely populated places.