London Reconnections reports that Heathrow Airtrack — the old proposal to link ready-built platforms under Heathrow T5 to Waterloo via the Windsor lines through Staines and Putney — has been quietly shelved. It was never a very interesting railway and, since I don’t anticipate using any airport in the foreseeable future, I have difficulty caring about its demise. But it’s a vaguely interesting story, I think, for the reason that it was dropped. Interesting to hardcore transport nerds, at least.