The double-decker bus is made up by two parts and it comes from Britian London bus. The famous one is the red double-decker London bus, which is also the Britian national treasure. Nowadays these double-decker buses can be seen in many cities of our country. In order to let passagers better go sightseeing, this is always open in the upper of some double-decker buses.
In some places related with Britian, such as India, Hong kong, Singapore, the south Africa and so on, these double-decker buses are one of the main commuter traffic tools. Besides, the Germany, especially these double-decker buses can be used many times in the north area of Germany.
Due to big bus body, higher gravity, both the driver and passagers should pay special attention to their security. Thus, the double-decker bus can not be driven very fast and the passagers can not stand in the upper of the bus. According to the bus operation safety and operational costs, many countries have been brought the double-decker bus , but this is still failed eventually.
At present, although some countries have double-decker bus, such as European countries, north America cities and so on, but there buses mainly as a sightseeig bus, which are usually open or half-open in the upper of these buses.
Surely, In China, there are also double-decker buses in many cities such as Beijing, Shanghai, Shenzhen, Wuxi, Xi’an, Xianyang and so on. So we have to pay much attention to our security when we are in the double-decker buses.