Buses can carry lots of people to school and work all at the same time.
One big bus can hold 40 people or more. That means fewer cars on the road and less traffic.
More facts about Common Vehicles
Cars use four wheels and an engine to zoom down the road.
Motorbikes have two wheels and are very popular in Vietnam.
Trains run on metal tracks and can pull many carriages in a line.
Bicycles move when you push the pedals round with your feet.
Japan's bullet trains can zoom faster than 300 kilometres an hour.