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New Study Shows That Bike Sharing Programs Actually Save Lives
Posted By Jessica Dailey On August 9, 2011 @ 9:52 am In Green Transportation,Innovation,News | No Comments
We have long touted the benefits  and general awesomeness of bike sharing. Not only are bikes a cheap and easy way to zip around cities, but swapping a gas-guzzling car for pedal-powered two-wheeler  is one of the easiest ways to curb carbon emissions and make our world a greener place. But now we have an even better reason to promote bike sharing : they actually save lives. A new study published by the British Medical Journal looked at Barcelona’s bike sharing program  and found that the benefits of bike shares  contributed to 12 less deaths every year.
The goal of the study was to examine the risks and benefits to the health of regular bicycle riders of a sharing program. The researchers used nearly 182,000 participants of Barcelona’s share program, Bicing , and found that the benefits of reduced greenhouse gas emissions and increased physical activity far outweighed the risks of more exposure to traffic accidents and emissions from cars. The researchers compared a car driver’s risk to the same factors, and found that while cyclists did have a slightly increased risk of death from traffic incidents (mortality rate of 0.03) and air pollution (mortality rate of 0.13), the increased exercise accounted for 12.46 lives saved, making the total lives saved 12.28. On top of that, Bicing has reduced the region’s annual CO2 emissions by 9,000 metric tonnes.
A.K. Streeter at Treehugger  explains that the researchers “took their data pool from only regular Bicing users, and assumed that 90% of them had only started regular cycle commuting after Bicing came into being.” Streeter  adds that “the plus of this was that the study was able to measure differences more easily than if they had studied a group of regular commuter cyclists who simply joined Bicing when it started up instead of using their own bikes. The downside is that there’s no way to know if that assumption is accurate.”
While the study authors do concede that this research is limited because of the availability of data, its results are supported by several other studies  that have shown similar benefits  of public bike sharing programs. And really, any data that encourages or supports bike sharing programs is highly beneficial to the greater sustainable cause. Hopefully these studies will have an impact in America, where many bike share programs (like New York City’s) have been slow to get off the ground.
Via Treehugger 
images via Bicing , unless noted
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URL to article: http://inhabitat.com/new-study-shows-that-bike-sharing-programs-save-lives/
URLs in this post:
 long touted the benefits: http://inhabitat.com/bike-sharing-to-save-cities/
 pedal-powered two-wheeler: http://inhabitat.com/san-francisco-announces-2011-launch-of-bike-sharing-program/
 bike sharing: http://inhabitat.com/public-bike-sharing-progress-and-challenges-still-ahead/
 Barcelona’s bike sharing program: http://www.bicing.cat/
 bike shares: http://inhabitat.com/metrobike-uses-crowd-sourced-bike-share-program-to-figure-out-where-stations-should-go/
 A.K. Streeter at Treehugger: http://www.treehugger.com/files/2011/08/bike-sharing-saves-lifes-cuts-emissions.php
 other studies: http://www.thelancet.com/journals/lancet/article/PIIS0140-6736%2809%2961714-1/fulltext
 shown similar benefits: http://ehp03.niehs.nih.gov/article/info%3Adoi%2F10.1289%2Fehp.0901747
 + British Medical Journal: http://www.bmj.com/content/343/bmj.d4521.full
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