Currently there are just under 5 million motorbikes and scooters on Hanoi’s roads. The use of bicycles, once the dominant transport mode in the city, decreased dramatically as motorbikes and cars became more popular. Hanoi desperately needs a metro system but the project has the project has faced numerous delays and setbacks. In recent years, studies have named Hanoi among the worst cities in Asia for air pollution. Believe me, after a day in Hanoi you can feel the pollution in your throat and eyes and there she sat just sitting by the side of the road watching the traffic, day after day after day.