Active forum topics
Navigation
User login
RSS Feed
20 mph zones
The British Medical Journal has recently published a paper about the effect of 20 mph traffic zones on road injuries in London with the following conclusions:
http://www.bmj.com/cgi/content/full/339/dec10_3/b4469
Results The introduction of 20 mph zones was associated with a 41.9% (95% confidence interval 36.0% to 47.8%) reduction in road casualties, after adjustment for underlying time trends. The percentage reduction was greatest in younger children and greater for the category of killed or seriously injured casualties than for minor injuries. There was no evidence of casualty migration to areas adjacent to 20 mph zones, where casualties also fell slightly by an average of 8.0% (4.4% to 11.5%).
Conclusions 20 mph zones are effective measures for reducing road injuries and deaths.
.jpg)
20s Plenty
Judging by the CycleSheffield list (ex Pedalpushers) there's a bit of a letters war going on in the Sheffield Star over residents in Nether Edge wanting a 20 limit. Good luck to 'em.
20 mph zones
On the subject of traffic speeds, I though this graph from Streetsblog San Francisco did an excellent job of highlighting the correlation between speed and injury rates: