Just used the new SkyLink train to go from gate C10 to C28 here at DFW Airport. It's a huge improvement over the "Mr. Toad's Wild Ride" train that was s...l...o...w...l...y moving passengers from terminal to terminal. You take an escalator up to the station with a train showing up every 90 seconds. Trains run in both directions and they've got a great view of the airplanes on the ramp. They remind me of the people movers in Atlanta, but without the whole underground tunnel thing. A system like it would be perfect for your next evil genius compound.