Environmental Problems
The typical diesel engine on the bus causes noticeable levels of air pollution, noise and vibration. With hybrid vehicles and the new forms of trolleybus, BRT designers hope to increase ride quality and decrease pollution. Since the energy used for acceleration is proportional to the vehicle mass, electric traction allows lighter vehicles, faster acceleration, and ability to feed energy back into batteries or the power grid through regenerative brakes. Regenerative braking has also become standard on many modern rail systems.
A BRT system can use trolleybuses to lower gaseous and noise emissions. The price penalty of installing overhead lines could be offset by the system's environmental benefits potential for savings from centrally generated electricity, especially in cities where electricity is less expensive than other power sources. In addition, most trolleybus applications can be converted to light rail with the only extra expense being the laying and maintenance of tram tracks in the street.
Read more about this topic: Bus Rapid Transit
Famous quotes containing the word problems:
“If when a businessman speaks of minority employment, or air pollution, or poverty, he speaks in the language of a certified public accountant analyzing a corporate balance sheet, who is to know that he understands the human problems behind the statistical ones? If the businessman would stop talking like a computer printout or a page from the corporate annual report, other people would stop thinking he had a cash register for a heart. It is as simple as that—but that isn’t simple.”
—Louis B. Lundborg (1906–1981)