Motorists in the country have become accustomed to wide lanes, typically the 12' standard, which is fine for highways and turnpikes but completely unnecessary in (or through) a city downtown. The dilemma in Coeur d'Alene was how to add a bike lane to Sherman Ave, their main thoroughfare.
Chris Danley, of Vitruvian Planning of Boise, showed how with some simple chalk:
Danley explained how the standard width of traffic lanes in usually 9 to 12 feet wide, but he illustrated that no more than 10 feet is needed per lane. He measured out 10 feet in a lane that was about 13 to 14 feet wide.You can read the entire article about Coeur d'Alene and their complete streets effort here.
A delivery truck approached the intersection right after that and fit comfortably within Danley's chalk lines.
"People are already using just 10 feet of the lane," he said. "The wider you build them the faster they will go and use it all up."
He did that to illustrate there is enough room on Sherman Avenue to add bicycle lanes. [emphasis added]
Kelly, who is also a Coeur d'Alene Police officer, said that is important to the city of Coeur d'Alene because it has adopted a complete streets policy that requires all new road construction to take all users into account, such as bikes, pedestrians and mass transit, as well as automobiles.