EcoWatch: For those of you who constantly battle with bumper-to-bumper commutes, have you ever wondered if it would be better to ditch your car and walk to your destination instead? The answer, according to a fascinating article from Scientific American's Tali Trigg, is probably not if you move at the average walking speed of 3.1 mph. The energy and transport analyst based his article on INRIXs data on the speeds of the worst traffic corridors during peak hours in the U.S.: Austin, Texas: 6 mph ...