Friday, February 26, 2010

friday favorites: hanbury road, london

Thanks to my pal Jacob for the tip.

This week's favorite comes to you from London, UK, via a fantastic article from the Next American City that talks about the correlation between traffic speed and pedestrian fatality. Incredible stuff:
  • 5 percent of people die when struck by a motorist going 20 mph
  • 45 percent of people die when struck by a motorist going 30 mph
  • 85 percent of people die when struck by a motorist going 40 mph
  • When cars exceed 20 mph, the comfort level of cyclists and pedestrians drops significantly
  • Eye contact between drivers, and between drivers and pedestrians, drops rapidly at speeds greater than 20 mph
  • Driving 20 mph requires a stopping distance of 150 feet, driving 30 mph requires a stopping distance of 200 feet, driving 35 mph requires a stopping distance of 250 feet.

Another gem related to this topic of street speed vs. safety comes from an article by the ever-awesome Streetsblog covering Toyota's recent hearing in the House oversight committee. Within, this juicy "rule of thumb" from a 2007 AAA Foundation for Traffic Safety study:
When travel speed increases by 1%, the injury crash rate increases by about 2%, the serious injury crash rate increases by about 3%, and the fatal crash rate increases by about 4%. The same relation holds in reverse: a 1% decrease in travel speed reduces injury crashes by about 2%, serious injury crashes by about 3%, and fatal crashes by about 4%.

Compelling proof that even the smallest changes in traffic speed can make the biggest difference for the safety of pedestrians. (I still hate the word "pedestrians." There must be a better alternative. "Walkers?" "People?")

Anyway, back to the photo: its photographer, Alan Stanton, has a very nice (and obsessive!) collection of street photos covering not just the bad & the ugly but also the good, including this lovely shot of the car-free Green Lanes Harringay Festival. Definitely worth checking out—do click through for a visit.

Every Friday I'll post a favorite narrow street snapshot from somewhere around the world. Got a Friday favorite of your own? Send me your photos!

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About the Photographer

Los Angeles, CA, United States
Writer, designer, and urban planning geek.

Got a location idea or photo submission? Send it to I'll post it to the blog or even run out to shoot it myself.


Other sites by David Yoon
Personal site

Kindred Spirits
Tom Baker, LA Without Cars
James Howard Kunstler

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SIFT Angeles


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