RAND Corporation – Car Sharing will reduce Congestion but Minimal Impact on CO2

Planetzen

In analyzing the potential for growth of car-sharing in the United States, a new study (pdf) by the RAND Corporation e…point out that [a shift towards car sharing could] significant benefits such as easing congestion, reducing the need for parking, and reducing transportation costs, they also report that the potential of such a shift to reduce energy use and carbon pollution is minimal.

“Here are the numbers: If 7.5 million Americans signed up for car-sharing services, the RAND study estimates that greenhouse-gas emissions from all U.S. vehicles would decline just 0.6 percent. If we got outlandish and assumed a future in which 20.3 million Americans (or about 12.5 percent of all eligible drivers) used car-sharing, then emissions from light vehicles would still just drop 1.7 percent.”

…the reason for the meager decline is due to the current driving patterns of those most be likely to use the service.

For the most part, the people who sign up for car-sharing services were barely driving anyway. On average, Americans who use these sharing services see their car ownership numbers drop from 0.47 cars per household down to 0.24 cars per household. In other words, they went from barely owning cars to… barely owning cars. In contrast, car ownership for the country as a whole is about 1.87 vehicles per household.”

“Indeed, as StreetsblogDC’s Tanya Snyder points out, public transportation — taking the bus or train — is a much more effective way for city dwellers to cut emissions.”

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