Dulles -steampunk or old and freaky?

So apparently at Dulles airport, when you need to get from one terminal to another, you ride in a boat/car/train. I have never seen this in my life. First of all, it’s extremely slow, non-practical and insane. Second, we are in 2016, right? Is Dulles aware that other forms of transportation technology exist?  It also raises up and down very slowly when it gets to the terminal. Is there anyone who can explain how this ever seemed like a good idea?