How Car Sharing Gradually Weans Users Off Driving

A number of studies have attempted to put a figure on the reduction in vehicles that results from car sharing services. Research from UC Berkeley’s Susan Shaheen goes a step further and quantifies how car sharing reduces driving. Even though most customers didn’t own their own cars before subscribing, Shaheen found that the overall impact of car sharing is to lower all customers’ vehicle mileage by about a quarter.

New research shows that car-sharing users progressively reduce their use. Photo: Wikipedia
New research shows that car sharing users progressively reduce their driving. Photo: Wikipedia

Chris Smith at Portland Transport spotted a write-up of Shaheen’s research in the SF Bay Guardian, and it bolstered his belief that car sharing reduces driving because it makes the cost of each trip more transparent to users:

This article looks at car sharing, attempting to figure out how many cars are removed from our streets, and what the impact on VMT is.

The consensus is 9-13 cars per sharing vehicle (compared to claims of up to 32 cars).

But the really interesting finding is that there is substantial VMT reduction even though many car-sharing customers are from car-free households. The conclusion is that over time you learn how to use the car less and less, as you get better and better at using other modes.

That matches my personal, anecdotal experience. I think a big part of that is because when each car-share trip becomes an incremental expense, the pricing signals encourage you to think harder about the alternatives.

Elsewhere on the Network today: Biking in the Upstate explains how bike planning can help with “town-gown” relations. Urban Cincy announces that Cincinnati’s form-based code zoning update earned a top prize from the Congress for New Urbanism. And the State Smart Transportation Initiative reports on the regulations that local governments are implementing in response to the rapid rise of the ride-sharing industry.

ALSO ON STREETSBLOG

34th-ave-open-street-sunset-1

The 12 Best Ways to Get Cars out of Cities, Ranked

|
Editor’s note: A version of this article originally appeared on The Conversation and is republished with permission.  Question: what do the following statistics have in common? The second-largest (and growing) source of climate pollution in Europe. The leading killer of children in both the US and Europe. A principal cause of stress-inducing noise pollution and life-shortening […]

What If We Paid the Full Cost of Driving?

|
Driving is too cheap in the United States. It’s a complicated thing to unpack, but David Levinson, engineering professor at the University of Minnesota and blogger at the Transportationist, attempted to analyze the cost per-minute. Levinson estimates that the true cost of driving — including vehicle purchase price, insurance, taxes, repairs, and costs like parking and […]

Getting Young People Back Into Cars Is Auto Industry Job #1

|
While the choked parking lots at many suburban high schools might mislead you, young people today are less interested in driving and owning cars than their counterparts in previous generations. This is happy news for environmentalists and complete streets advocates, who see fewer vehicles on the road as key to a healthier, wealthier society. For […]