Displaced Threshold
Hello everybody!
I have a question. After an aircraft has been cleared to land on a displaced threshold, can another a/c be cleared to cross the threshold? The crossing traffic is between the landing traffic and the Dis.THR and it doesn't penetrate the Inner Approach surface (Annex 14) and the VSS (Doc8168) and well below the traffic which is landing at an angle of 3 deg glide path.
Does it cause runway incursion? The distance between the THR and the Dis.THR is 741m, decision height is 120m.
I am confused because the touhdown zone is beyond the Dis.THR, so the THR is outside the LDA used for landing. I wonder if small traffic can cross the THR instead of holding short of the RWY until the landing a/c has passed the THR. ̣
When considering the height of obstacles, what surfaces should the constructor pay attention to? The Inner approach surface ? The VSS? The OAS? And how much is the acceptable deviation when an a/c taxi follow the taxiway centerline?
Thank you very much!!!