Bike lanes now run down the middle of Pennsylvania Avenue -- America’s “Main Street.”  As the Secretary of Transportation, Ray LaHood wrote on his blog, “for too long, walking and biking have been overlooked as important forms of Transportation. Now we see local governments answering that call by creating new opportunities for people to take advantage of streetcars, transit, walking, and bike lanes. They’re taking the needs of pedestrians and cyclists into account like never before.”