On Sep 28, Arthur Ross wrote:
Mike Barrett wrote: "Somewhere...who knows where...I read or heard
at a conference and my pea-brain actually retained...an interesting
stat: ***For every 1% increment in mode share that bicycling
attains, there is a 30% reduction in bicyclist death rates.***"
I can't vouch for these particular numbers, but there is some well
document reseach under the general title of safety in numbers that
indicates that there is an inverse relationship between the number
of people walking and bicycling and crashes.
See http://www.walkinginfo.org/library/details.cfm?id=2464 fo an
abstrach of the article
http://www.tsc.berkeley.edu/newsletter/Spring04/JacobsenPaper.pdf for
the entire article
http://www.tsc.berkeley.edu/newsletter/Spring04/syntax.html for
related
research
And here's a post from Portland's streetsblog:
"Between 2004 and 2005 the number of cyclists using the four bridges
that cross Willamette River into Downtown Portland grew 15 percent.
That's impressive. Yet, the growth rate jumped to 18 percent between
'05 and '06. The next year, according to a sneak peak at preliminary
'06-'07 counts, the number of bikes using the four bridges jumped 21
percent."
[...]
"It is also interesting to see that as the number of cyclists has
grown in Portland over the last 15 years, the rate of bike crashes
has plummeted, proving once again, the findings of Peter Jacobsen's
famous "safety in numbers" study. The best way to make streets safer
for pedestrians and cyclists is to get more pedestrians and cyclists
to use the street."
Read the whole thing, in all its chart and graphiliciousness, here:
<http://www.streetsblog.org/2007/09/28/portland-sees-explosive-growth-
in-bike-commuting/>
Michael Lemberger
Madison
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