Definition
Specialized radar display screens used by air traffic controllers during Precision Runway Monitor (PRM) operations, featuring fast update rates, fine target resolution, and automated alerting that warns controllers when an aircraft deviates toward the no transgression zone between closely spaced parallel approach paths.
Plain English
Sharper, faster radar screens that controllers use when watching planes fly side-by-side approaches to closely spaced runways. The screens update quickly and sound an alert if a plane drifts off its approach path toward the next runway.
Context Anchor
Seen in discussions of PRM operations, where controllers use special displays to watch aircraft on closely spaced parallel runway approaches.
Derivation
"High-resolution" simply means the display shows finer detail and updates more frequently than a standard radar scope. The extra detail and speed are what make it safe to monitor parallel approaches that are closer together than normal.
Why Pilots Care
They let controllers detect small course deviations quickly enough to issue corrections and maintain safe separation between aircraft on parallel approaches.
Analogy
It is like zooming in on a map so two nearby roads no longer blur together. The controller needs enough detail to tell which aircraft is where, not just that aircraft are nearby.
Intuition Check
High-resolution does not just mean the screen looks sharp or modern. Here it means the display gives controllers enough position detail to monitor closely spaced aircraft safely.
Example Sentence 1
During PRM approaches, controllers use high-resolution ATC displays to detect any deviation from the assigned final approach course within seconds.
Example Sentence 2
High-resolution ATC displays allow simultaneous landings on parallel runways by showing precise aircraft positions.