The buses are the most common names of the vehicle designed to carry many people through urban roads. It is used in urban and interurban public transport services, and with fixed route. Its capacity can vary between 10 and 120 passengers. In fast transit bus systems, the capacity of buses can vary between 160 and 240 passengers. Whether you're on your way to your soccer training, your aunt's house, or the science museum as a school trip, you'll probably drive or ride the school bus. Most buses operate as road vehicles with an internal combustion engine and fuel diesel, and some other are Electrical the electric buses offer a choice of more environmentally friendly transportation by replacing the internal combustion engine, by an electric motor powered primarily by batteries of different types. Natural gas the use of the bus as a way to reduce the use of the private car has led in some cities the implementation of the natural gas combustion bus for these means of public transport.