clearway

noun

1. (Australia, New-Zealand, UK)A road or other path that is kept free of obstructions, or on which stopping is strictly regulated, in order to maintain free flow of movement.

   “The traffic lanes of the sea can be clearways for thousands of miles.”

2. An area projecting from the end of a runway that is kept clear of obstructions exceeding a height that increases with distance from the end of the runway.

   “A clearway may be provided to extend the takeoff distance available (TODA) beyond the end of the hard surface which defines the declarable length of the available takeoff run (TORA).”