As a geeky kind of spin-off from our Secrets of the Tube series, we took a ride in the cab of a Heathrow Express train, from Paddington to the airport.
As the video shows, the line turns out to be more interesting than you might imagine. We were shown unused platforms and cavernous spaces. And we also discovered that one of the capital's shortest rail links — the shuttle between Terminals 1,2,3 and Terminal 4 — has as many drivers as it has stations.
The video above is by Geoff Marshall, and the photos below are by Matt Brown. With thanks to the staff at Heathrow Express for taking the time to show us round.
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