Draft EUG Master Plan Update, February 2010

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GLOSSARY APPENDIX A PRECISION APPROACH PATH INDICATOR (PAPI) : An airport visual landing aid similar to a VASI, but which has light units installed in a single row rather than two rows. PRECISION APPROACH PROCEDURE : A standard instrument approach procedure in which an electronic glide slope is provided, such as an ILS or PAR. (FAR 1) PRECISION INSTRUMENT RUNWAY : A runway with an instrument approach procedure utilizing an instrument landing system (ILS), microwave landing system (MLS), or precision approach radar (PAR). (Airport Design) RELOCATED THRESHOLD: The portion of pavement behind a relocated threshold that is not available for takeoff and landing. It may be available for taxiing and aircraft. (Airport Design) REMOTE COMMUNICATIONS AIR/GROUND FACILITY (RCAG) : An unmanned VHF/UHF transmitter/receiver facility which is used to expand ARTCC air/ground communications coverage and to facilitate direct contact between pilots and controllers. (AIM) REMOTE COMMUNICATIONS OUTLET (RCO) AND REMOTE TRANSMITTER/ RECEIVER (RTR) : An unmanned communications facility remotely controlled by air traffic personnel. RCO's serve FSS's. RTR's serve terminal ATC facilities. (AIM) RESTRICTED AREA : Designated airspace within which the flight of aircraft, while not wholly prohibited, is subject to restriction. (FAR 1) RUNWAY CLEAR ZONE : A term previously used to describe the runway protection zone. RUNWAY EDGE LIGHTS : Lights used to define the lateral limits of a runway. Specific types include: • HIRL High-Intensity Runway Lights • MIRL Medium-Intensity Runway Lights RUNWAY END IDENTIFIER LIGHTS (REIL) : Two synchronized flashing lights, one on each side of the runway threshold, which provide a pilot with a rapid and positive visual identification of the approach end of a particular runway. (AIM) RUNWAY PROTECTION ZONE (RPZ): A trapezoidal shaped area at the end of a runway, the function of which is to enhance the protection of people and property on the ground through airport owner control of the land. The RPZ usually begins at the end of each primary surface and is centered upon the extended runway centerline. (Airport Design) RUNWAY SAFETY AREA (RSA) : A defined surface surrounding the runway prepared or suitable for reducing the risk of damage to airplanes in the even of an undershoot, overshoot, or excursion from the runway. (Airport Design) SMALL AIRCRAFT : An aircraft of 12,500 pounds or less maximum certificated takeoff weight. (FAR 1) SPECIAL USE AIRSPACE : Airspace of defined horizontal and vertical dimensions identified by an area on the surface of the earth wherein activities must be confined because of their nature and/or wherein limitations may be imposed upon aircraft operations that are not a part of those activities. (AIM) A-8 Eugene Airport Master Plan Update (February 2010)