What is the purpose of Precision Runway Monitoring (PRM)?

Precision Runway Monitoring (PRM) is designed specifically for monitoring approaches to closely spaced parallel runways. The system uses advanced radar and other technologies to ensure that aircraft can safely land on these runways while minimizing the risk of wake turbulence and spatial conflicts. By providing more precise tracking of approaching aircraft, PRM allows air traffic controllers to maintain safe separation between aircraft landing on runways that are positioned closely together.

This capability is particularly important in busy airports where efficient use of runway capacity is essential, as it enables simultaneous landings on two parallel runways without compromising safety. The use of PRM enhances the ability to handle increased traffic volumes while maintaining high safety standards, which is crucial for modern air traffic operations.

The other options do not accurately reflect the specific function of PRM. While enhancing communication with pilots is vital in air traffic management, it is not the primary purpose of PRM. Monitoring approaches to widely spaced runways is outside the scope of PRM's focus, as it specifically addresses closely spaced runways. Lastly, improving aircraft throughput on the ground relates more to ground operations and not to the monitoring of approach paths, which is the essence of PRM's role.