Plain English Meaning

PRM is a special radar and procedure setup that lets controllers land planes on two parallel runways at the same time, even in poor weather. The 'benefits' are the practical payoffs: more landings per hour, fewer delays, and steadier traffic flow when clouds or low visibility would normally slow the airport down.

Full Definition

The operational advantages produced by Precision Runway Monitor (PRM) systems, which use high-update radar and specialized controller procedures to safely conduct simultaneous independent approaches to closely spaced parallel runways. These benefits include increased airport arrival , reduced delays during , and the ability to near- rates when weather would otherwise dependent or single- operations.