Zipcar
The New York Times Magazine on the service design concept behind car sharing:

“Car sharing, is a pay-per-use system, which has the effect of significantly altering driving behavior. Evidence suggests that sharers drive from a quarter to half as much as owners — a staggering reduction in energy consumption. Not only do they drive less frequently, but they also drive differently. They “chain” their trips, making multiple stops along the shortest route in order to drive most efficiently. They save money, do better by the environment and contribute less to congestion. Car sharing also has an appealing communal spirit.”

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