What is the definition of a Preferential Arrival Route (PAR)?

The correct choice describes a Preferential Arrival Route (PAR) as an arrival route included in a Standard Terminal Arrival (STAR). This means that a PAR is established to provide efficient and structured routing for aircraft when they approach an airport. STARs are designed to streamline the transition from en route airspace to the terminal area, and PARs are essentially a part of these structured arrivals that help manage traffic flow, reduce workload for air traffic controllers, and enhance safety.

Understanding this concept is essential because it highlights how airspace management works, particularly regarding the integration of various arrival routes within a larger framework designed to facilitate safe and efficient landings. This is especially important in busy airports where managing multiple arrivals simultaneously is critical to maintaining safety and operational efficiency.