Can You Explain The Connection Between Declared Distances Found In Th

1.	Can You Explain The Connection Between Declared Distances Found In The Airport/facility Directory And Shortened Runways?
Answer» If the runway is shortened, then EXPECT to see at least one CHANGE in the declared distances: accelerate-stop distance available (ASDA), landing distance available (LDA), takeoff distance available (TODA), and takeoff runway available (TORA) If a shortened runway CLOSES part of the displaced threshold, the LDA may not change while every other declared distance might change BARRICADES ACROSS part of the runway ensures the runway safety area (RSA) is further along the runway – the RSA boundary is where the measurements start

Can You Explain The Connection Between Declared Distances Found In The Airport/facility Directory And Shortened Runways?

Answer»

If the runway is shortened, then EXPECT to see at least one CHANGE in the declared distances: accelerate-stop distance available (ASDA), landing distance available (LDA), takeoff distance available (TODA), and takeoff runway available (TORA)
If a shortened runway CLOSES part of the displaced threshold, the LDA may not change while every other declared distance might change
BARRICADES ACROSS part of the runway ensures the runway safety area (RSA) is further along the runway – the RSA boundary is where the measurements start