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Rudra's favourite airport, and remember he considers airports to be the Western equivalents of Zen temples, is Stanstead. There you are delivered to your plane in a driverless train.
See Dave's comments below. He refers to one such train at a Malaysian Airport: "The train, is fully driverless and automated. One example, when the train reaches platform, the exit doors will open first for passengers to disembark and only in a short while, the entrance door at the other side will be open (so called Spanish solution)."Having just returned from the South of Spain I see how apt this description is. There appeared to be many driverless cars in that region.