What is the primary function of the Departure Sequencing Program (DSP)?

• A. Assigns fix crossing times to aircraft
• B. Assigns departure times to planes at different airports
• C. Holds aircraft on the ground during delays
• D. Oversees en route stream integration

Answer: (B)

The primary function of the Departure Sequencing Program (DSP) is to optimize the departure flow of aircraft from various airports, consequently assigning departure times to planes. By effectively managing the scheduling of departures, the DSP aims to reduce congestion and ensure a more orderly and efficient transition from ground operations to the airspace.

This system's ability to coordinate departures helps avoid bottlenecks at busy airports, leading to improved overall air traffic management. While options related to cross times, holding aircraft, or en route integration pertain to air traffic operations, they serve different purposes and do not encapsulate the main focus of the DSP, which is centered around managing and timing aircraft departures specifically.