ASDA

ASDA (Accelerate-Stop Distance Available) is the length of the takeoff run available plus the length of the stopway, if provided. It represents the total distance available for an aircraft to accelerate to decision speed and then decelerate to a stop in the event of an aborted takeoff.

ASDA is one of the four declared distances published for each runway direction, along with TORA, TODA, and LDA.