For Chinese, public bus is an important vehicle.
In 1990s, all kinds of gasoline bus picked up citizens for commuting everyday.
After entering the 21st century, Chinese people increasingly concern about ecological environment. For decreasing the pollution of public transportation, all kinds of new electric drive bus are emerging in an endless stream.
Up to this day, it is hard to see the public vehicle that use gasoline as energy in Beijing, Shanghai and other big cities.