From Co.Exist

Bike lanes

… researchers at McGill University have just published a new study detailing how better bike infrastructure encourages people to ditch their cars and commute by bike, cleaning up the city’s air in the process.

The team looked at its own city, Montreal, for the study. It compared car and bike trip information from 1998, 2003, and 2008, along with changes in the “built environment,” i.e. the increase in bike lanes and other bike-friendly changes. …

Not that McGill’s results were that great. While the figures do show a shift from car commuting to bike commuting, the numbers themselves are quite small: A 10% increase in bike accessibility resulted in only a 3.7% increase in ridership.

Full article here.