They identified 19
cycle tracks in 14 cities in the U.S. and found these
cycle tracks had an overall crash rate of 2.3 per one million bicycle
kilometers ridden, which is similar to crash rates found on Canadian
cycle tracks and lower than published crash rates from cities in North America for bicycling in the road without any bicycle facilities.»
Treehugger.com readers know the statistics already: 1.3 million
kilometers cycled each and every work day by about 160,000 people; 50 % of the city's adult population
ride their bikes to work or school; 24 % take transit; 13 % walk; 13 % drive.