Order 7110.65P, Air Traffic Control, with changes

8/5/04Pilot/Controller Glossarythe proper control positions. Locations having a needfor these specific inbound and outbound routesnormally publish such routes in local facility bulletins,and their use by pilots minimizes flight planroute amendments. When the workload or trafficsituation permits, controllers normally provide radarvectors or assign requested routes to minimizecircuitous routing. Preferential routes are usuallyconfined to one ARTCC’s area and are referred to bythe following names or acronyms:a. Preferential Departure Route (PDR). A specificdeparture route from an airport or terminal area to anen route point where there is no further need for flowcontrol. It may be included in an Instrument DepartureProcedure (DP) or a Preferred IFR Route.b. Preferential Arrival Route (PAR). A specificarrival route from an appropriate en route point to anairport or terminal area. It may be included in aStandard Terminal Arrival (STAR) or a Preferred IFRRoute. The abbreviation “PAR” is used primarilywithin the ARTCC and should not be confused withthe abbreviation for Precision Approach Radar.c. Preferential Departure and Arrival Route(PDAR). A route between two terminals which arewithin or immediately adjacent to one ARTCC’s area.PDARs are not synonymous with Preferred IFRRoutes but may be listed as such as they doaccomplish essentially the same purpose.(See NAS STAGE A.)(See PREFERRED IFR ROUTES.)PREFERRED IFR ROUTES− Routes establishedbetween busier airports to increase system efficiencyand capacity. They normally extend through one ormore ARTCC areas and are designed to achievebalanced traffic flows among high density terminals.IFR clearances are issued on the basis of these routesexcept when severe weather avoidance procedures orother factors dictate otherwise. Preferred IFR Routesare listed in the Airport/Facility Directory. If a flightis planned to or from an area having such routes butthe departure or arrival point is not listed in theAirport/Facility Directory, pilots may use that part ofa Preferred IFR Route which is appropriate for thedeparture or arrival point that is listed. Preferred IFRRoutes are correlated with DPs and STARs and maybe defined by airways, jet routes, direct routesbetween NAVAIDs, Waypoints, NAVAID radials/DME, or any combinations thereof.(See CENTER’S AREA.)(See INSTRUMENT DEPARTUREPROCEDURE.)(See PREFERENTIAL ROUTES.)(See STANDARD TERMINAL ARRIVAL.)(Refer to AIRPORT/FACILITY DIRECTORY.)(Refer to NOTICES TO AIRMEN PUBLICATION.)PRE-FLIGHT PILOT BRIEFING−(See PILOT BRIEFING.)PREVAILING VISIBILITY−(See VISIBILITY.)PRM−(See ILS PRM APPROACH and PRECISIONRUNWAY MONITOR.)PROCEDURE TURN− The maneuver prescribedwhen it is necessary to reverse direction to establishan aircraft on the intermediate approach segment orfinal approach course. The outbound course, directionof turn, distance within which the turn must becompleted, and minimum altitude are specified in theprocedure. However, unless otherwise restricted, thepoint at which the turn may be commenced and thetype and rate of turn are left to the discretion of thepilot.(See ICAO term PROCEDURE TURN.)PROCEDURE TURN [ICAO]− A maneuver inwhich a turn is made away from a designated trackfollowed by a turn in the opposite direction to permitthe aircraft to intercept and proceed along thereciprocal of the designated track.Note 1: Procedure turns are designated “left” or“right” according to the direction of the initial turn.Note 2: Procedure turns may be designated asbeing made either in level flight or whiledescending, according to the circumstances ofeach individual approach procedure.PROCEDURE TURN INBOUND− That point of aprocedure turn maneuver where course reversal hasbeen completed and an aircraft is established inboundon the intermediate approach segment or finalapproach course. A report of “procedure turn inbound”is normally used by ATC as a position reportfor separation purposes.(See FINAL APPROACH COURSE.)(See PROCEDURE TURN.)(See SEGMENTS OF AN INSTRUMENTAPPROACH PROCEDURE.)PCG P−3