Where is a stopway located in relation to take-off surfaces?

A stopway is an area beyond the take-off runway that is designed to provide extra stopping distance in case of aborted take-off. It is particularly important for safety, allowing an aircraft to come to a stop if it cannot achieve sufficient speed or if there is an engine failure during the take-off roll.

The correct placement of a stopway is at the end of the Take Off Run Available (TORA). The TORA is the length of runway available for the take-off roll of an aircraft. When considering the parameters related to take-off, the stopway provides an additional buffer beyond this distance, ensuring there is space for deceleration without obstruction.

The other options relate to different runway metrics but do not accurately define the position of a stopway. For instance, Landing Distance Available (LDA) is related to landing operations, while Accelerate-Stop Distance Available (ASDA) includes both TORA and an associated stopway but does not specify the stopway's location. Take Off Distance Available (TODA) is the total distance available for take-off, which may include the stopway but is not strictly where it is positioned. Thus, defining the relationship of a stopway specifically to the TORA is what makes this choice correct.