31 Dec '16, 1am

Bigger Isn’t Always Better: Narrow Traffic Lanes Make Cities Safer https://t.co/vFkbaTZLYV

Bigger Isn’t Always Better: Narrow Traffic Lanes Make Cities Safer https://t.co/vFkbaTZLYV

In Beijing, Chennai and Fortaleza, the rate of fatalities from road crashes is 20-27.2 deaths per 100,000 residents. What do these cities have in common? They have traffic lanes wider than 3.6 meters (11.8 feet). A long-standing belief among transportation planners and engineers is that wider traffic lanes ensure safe and congestion-free traffic flow. Recent academic research , highlighted in Cities Safer by Design, a WRI Ross Center for Sustainable Cities publication, shows that wider lanes are more dangerous than narrower lanes. To further investigate how cities are stacking up against the existing evidence, the Health and Road Safety team of WRI Ross Center for Sustainable Cities decided to compare typical lane widths in selected global cities with reported traffic fatality rates.

Full article: http://www.wri.org/blog/2016/12/bigger-isnt-always-better...

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