What is the purpose of maintaining 'surface surveillance' in tower operations?

• A. To monitor weather on the ramp.
• B. To track ground vehicle movements only.
• C. To monitor all ground movements and prevent conflicts between aircraft and vehicles.
• D. To record flight plans.

Answer: (C)

Surface surveillance provides a real-time picture of all ground activity. In tower operations, this means you can see every aircraft taxiing on ramp areas and taxiways, along with every ground vehicle, know their exact positions, speeds, and directions, and track how they’re moving. With that awareness, you can prevent conflicts between aircraft and vehicles by issuing timely and precise taxi instructions, coordinating runway crossings, and maintaining safe separation as movements shift across runways, intersections, and gates. This keeps operations safe and efficient, reducing the risk of runway incursions or taxiway clashes. Weather on the ramp isn’t what surface surveillance handles, and tracking only vehicles would miss aircraft movements on the surface, while flight plans are managed separately and don’t provide the live situational picture you need for ground safety.