declared distances

declared distances

declared distancesclick for a larger image
The distances calculated and published for each runway direction of an airport based on aircraft characteristics, safety requirements, and the airport environment. The declared distances pertain to takeoff run available (TORA), takeoff distance available (TODA), accelerate-stop distance available (ASDA), and landing distance available (LDA). TORA is the length of runway declared available and suitable for a ground run of an airplane. TODA is the length of the takeoff run available plus the length of the clearway, if provided. ASDA is the length of the takeoff run available plus the length of the stop-way, if provided. LDA is the length of runway declared available and suitable for the ground run for an airplane landing.