15 facts about transportationEnlarge Photo
The oldest, and greenest, form of transportation is no further away than the ends of your legs. It's walking, courtesy of your feet.
Today, rather to our surprise, it turns out that 51 percent of Americans who travel still walk regularly. And that's courtesy of the National Highway Traffic Safety Administration, no less.
That, plus 14 other transportation facts, should put your daily commute in a whole new light.