Originally Posted by
Fairdealfrank
All that won't happen without a third rwy is the tunnel. The A4 tunnels will happen because even without a third rwy the airport has to expand across the A4, for LHR-6 for example, which will be needed when LHR-3 is demolished and not rebuilt.
That's a novel concept.
It's nonsense, of course - the T3 footprint will be replaced by the final bunch of T2 satellites to complete the "toast-rack" configuration.
Unless you're suggesting that all Heathrow's operators are going to switch to A380s, terminal capacity south of the Bath Road will be more than enough to handle all the traffic that a 2-runway airport would generate.