Passengers board the first local train at any point, and it stops every 50 seconds for a period of 10 seconds. When the doors close, a gong sounds and the local platform starts moving. Now there is another signal and gates open for a second platform, or express, on which the passenger takes the major part of his trip. After ten seconds the gates close and the local slows down for another stop, while the express picks up to a 22 m.p.h. speed.
Noise of the system is at a minimum, and passengers are delivered at no more than 300 feet from their streets. All stations are controlled from one central point, all elements being so timed that there can be no hitches.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.