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Established alternatives for some aspects of automobile use include public transit (buses, trolleybuses, trains, subways, monorails, tramways), cycling, walking, rollerblading and skateboarding. Car-share
arrangements are also increasingly popular – the U.S. market leader has
experienced double-digit growth in revenue and membership growth
between 2006 and 2007, offering a service that enables urban residents
to "share" a vehicle rather than own a car in already congested
neighborhoods. Bike-share
systems have been tried in some European cities, including Copenhagen
and Amsterdam. Similar programs have been experimented with in a number
of U.S. Cities. Additional individual modes of transport, such as personal rapid transit
could serve as an alternative to automobiles if they prove to be socially
accepted
An automobile or motor car (usually shortened to just car) is a wheeled passenger vehicle that carries its own motor.
Most definitions of the term specify that automobiles are designed to
run primarily on roads, to have seating for one to eight people, to
typically have four wheels, and to be constructed principally for the
transport of people rather than goods. However, the term is far from precise.
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