Time for me to state the obvious..
..when landing, the amount of runway behind you is of no consequence.
And talking about ASDAs - what about the runways that offer an intersection take-off? How many times do you see a/c tight on slot take an intersection departure - have done the calcs? or is it opportune?
In the UK CAP168 Chapter 3 deals with physical characteristics and largely follows Annex 14. Interestingly over the past year my Jepps UK airfield updates have had quite a number of shrinking runways published.
Nothing to do with ICAO coming see how the Belgrano works later this year?
Sir George Cayley