Rick Miller
Tue, 23 Jul 2002 12:02:17 -0700
could i please be removed from this list? thanks rick miller Dennis Winters wrote: > Mr. Wisdom (no pun intended!) holds no office in the Bicycle Coalition of > Greater Philadelphia nor does he in any way speak for the Coalition. > > Dennis R. Winters, Secretary & Board Member > BCGP > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > > Clean Air Council > 135 S. 19th Street, Suite 300 > Philadelphia, PA 19103-4219 > 215.567.4004, x233 215.567.5791 fax > [EMAIL PROTECTED] > [EMAIL PROTECTED] > [EMAIL PROTECTED] > http://www.cleanair.org > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > > "I do not call one greater or one smaller, that which fills its period and > place is equal to any." > > Walt Whitman > _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ > _ _ _ _ _ _ _ _ _ _ > ----- Original Message ----- > From: "Peter Rosenfeld" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Cc: <[EMAIL PROTECTED]> > Sent: Tuesday, July 23, 2002 1:47 PM > Subject: Re: BCGP and Bike Lanes > > > > > > > > > On Tuesday, July 23, 2002, at 09:33 AM, Peter Rosenfeld wrote: > > > > > > > Where I draw the lines are facilities that increase or reinforce > > > > excessively dangerous activities. Due to the high potential of > > > > dooring in city areas, I feel that door zone bike lanes fit into > > > > this category. In such a case, I would call the facility an > "attractive > > > > nuisance" in the legal sense. I also feel there are ethical issues > > > > in knowingly designing a facility that gives a false sense of > security. > > > > > > Let's put it into numbers. How many dooring deaths, linked to use of > > > bike lanes, do you consider excessive? I think the benefits of bike > lanes > > > would be worth 10 deaths per state per year. So 500 deaths per year; > less > > > than one in a million. Can you make the case that there are anywhere > near > > > that many dooring deaths linked to bike lanes? > > > > > > Robert > > > > > > > > > Why would you think bike lanes are worth 500 excess deaths a year? > > Do you really mean this? Are you ready to go public with this statement? > Do you > > have an official capacity with BCGP or any other planning organization? > > > > Dooring deaths are hard to estimate due to the rarity of all bike deaths. > The > > example you gave of 500 excess deaths a year would be increasing the > number of > > deaths from around 800 to 1300, a 63% increase. If you think the political > aims > > of lanes are worth such a large number of deaths, I have nothing to say to > you > > and recommend that all planning organizations disassociate themselves from > you. > > > > Serious accidents are much more common. Recent studies indicate that in > urban > > areas with parallel parking, dooring injuries account for a significant > fraction > > of all car/bike collisions. In Santa Barbara such bike lanes seem to be > > associated with an increase of doorings from 7.4% of all car/bike > collisions to > > 16%. Other studies have indicated that dooring deaths are just as serious > as > > other car/bike collisions. So we are talking about a very significant > number of > > serious injuries. > > > > However, because nationally most bicyclists are not exposed to situations > that > > can result in dooring, they are not a common accident, accounting for > about 0.8% > > of all car/bike accidents. > > > > So for death numbers: Nationally, assuming doorings cause deaths in > proportion > > to their injury rate ( which seems reasonable given the injury severity) > you > > would expect dooring to result in less than 1 percent of deaths, on the > order of > > 8 deaths. Very low down in the noise. In places like Santa Barbara, > Boston, and > > Philadelphia, maybe 7 to 16% of deaths. Since a place like Philadelphia > has, > > what, maybe 6 or 7 bike deaths a year, this would translate into one > extra > > death every 1 to 2 years if I worked the numbers correctly. > > > > -Peter Rosenfeld > > > > ---- > > You are receiving this because you are subscribed to the > > Bicycle Coalition of the Delaware Valley list named "bike." > > To subscribe or unsubscribe or for archive information, see > > <http://www.purple.com/list.html>. > > ---- > You are receiving this because you are subscribed to the > Bicycle Coalition of the Delaware Valley list named "bike." > To subscribe or unsubscribe or for archive information, see > <http://www.purple.com/list.html>. ---- You are receiving this because you are subscribed to the Bicycle Coalition of the Delaware Valley list named "bike." To subscribe or unsubscribe or for archive information, see <http://www.purple.com/list.html>.