Random thoughts
The best way to build forgiving streets is to erect buffers, in both space and time, between fast-moving drivers and much more vulnerable bicyclists and pedestrians. http://transalt.org/press/askta/050211.html
Many people are unaware of the stark statistic that a pedestrian hit by a car travelling at 35mph is twice as likely to die as one hit at 30mph, so a small increase in speed really does make a difference.
A child pedestrian hit by a car travelling at 20mph has a 95% chance of survival; at 30mph a 50% chance; and at 40mph a 10% chance.
http://www.birminghamfoe.org.uk/newslet/news0204/STORY_9.HTM
there's something wrong with a transportation system that keeps kids from making a short walk to school.
http://www.tstc.org/bulletin/19951103/mtr05805.htm
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