This provides obstruction clearance from the terminal area to the appropriate en route structure.

• A. Instrument Departure Procedure
• B. Standard Terminal Arrival Route
• C. Terminal Radar Service
• D. Visual Flight Rule Departure

Answer: (A)

Departures use published paths that ensure safe separation from obstacles as you leave the terminal area and transition to the en route structure. An Instrument Departure Procedure is exactly this: a defined route with IFR altitude constraints and turn instructions that keeps you clear of terrain and obstacles right after takeoff while guiding you toward established airways. The emphasis is on providing a guaranteed, obstacle-cleared path from the airport into the en route system, coordinated with ATC.

The other options don’t serve this purpose. A Standard Terminal Arrival Route is designed to bring you from en route airspace into the terminal area for arrival, not for getting you safely away from the airport during departure. Terminal Radar Service is a radar advisory service offering traffic information and sequencing, not a published path for obstacle clearance. A Visual Flight Rule Departure relies on the pilot’s see-and-avoid concept under VFR and does not provide a published obstacle-cleared route from the terminal to en route airways.