Looks like Kathy at Will Run for Miles covered this even before Entrepreneur covered it!  Check out her article for a runner’s perspective.
I’ve had a lot of experiences running through the airport–especially Charlotte.
It’s when I get to put my cardio to use, and is a good motivator when I’m thinking about quitting my session at the gym.
Entrepreneur.com has a sneak peek at the first airport to have a literal racetrack.
Narita International Airport changed its Terminal 3 walkways into literal racetracks.
It does make me a bit jealous. Â If everyone had to stay in a lane, it would make passing people while sprinting through the Charlotte Airport a lot easier.