Bus is a commercial vehicle specially designed and equipped to solve urban and suburban traffic. The bus, which originated from the transliteration of the English word bus, is a large bus. Compared with medium-sized buses and small buses, most buses are more than 9 meters long and have more than 20 seats. Corresponding to this are CMB (6-9 meters, 10- 19 seats) and minibus (less than 6 meters, less than 10 seats).
There are single-deck and double-deck buses; There are articulated and towed vehicles. There are two doors, single door, or luggage compartment. Most buses are driven by diesel engines. At present, there are pure electric vehicles and all-metal bodies. According to the number of passengers, the energy consumed and the road area occupied are calculated, and the bus is more economical than the individual vehicle.
This is also one of the main reasons why many countries give priority to the development of buses. From a global perspective, automobile manufacturing and popularization are relatively extensive, so the bus manufacturing industry, as the main body of public transportation, is quite mature in design concept and technology, and the technical level and scientific research ability of European buses rank first in the world.