Ha noi is very cowded and it had to face a lot of traffic problems.There are too many people using the roads.All types of vehicles are on the raods. It's very dangerous if you are not familiar with transportation here.There are some roads which are narrow and swampy when there is heavy rain.Moreover, some young people drive on the road dangerously.They don't respect the traffic rules street and they even play on the  street with their motos