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6 – i ndex
ProceduralService:
Termused to indicate that informationderived
from anATS surveillance system is not required for theprovisionof
ATS.
ProcedureAltitude/Height:
A specifiedaltitude/height flownat or
above theminimum altitude/height, and established toaccommodate
a stabiliseddescent at aprescribeddescent gradient/angle in the
intermediate/final approach segment.
ProhibitedArea:
An airspaceof defineddimensions, above the land
areas or territorial waters of aState, withinwhich theflight of aircraft
is prohibited. Designation is appropriateonly for reasons of Defence.
QNHAltimeterSetting:
That pressure settingwhich, whenplaced
on thepressure setting sub-scaleof a sensitivealtimeter of an
aircraft located at the referencepoint of anaerodrome, will cause the
altimeter to indicate the vertical displacement of the referencepoint
abovemean sea level.
RadioHeight:
The radio altimeter readingwhich is equivalent to the
OCA adjusted for terrain/obstacleprofile.
RadioNavigationService:
A serviceprovidingguidance information
or positiondata for the efficient and safeoperationof aircraft
supportedbyoneormore radionavigation aids.
Radar/ADS-BInformationService(RIS):
Anon-request service
provided to assist pilots of VFRflights, withinATS surveillance system
coverage inClass E andClassGairspace, toavoidother aircraft or to
assist innavigation.
Rapid-ExitTaxiway:
A taxiway connected toa runwayat anacute
angleanddesigned toallow landing aeroplanes to turnoff at high
relative speeds.
ReceiverAutonomous IntegrityMonitoring (RAIM):
A system
wherebyan airborneGPS receiver/processor autonomouslymonitors
the integrityof thenavigation signals fromGPS satellites.
ReducedVerticalSeparationMinimum (RVSM):
Thevertical
separationminimumof 1000 ft between FL290and FL410 inclusive.
Repetitive FlightPlan:
Aflight plan referring toa series of frequently
recurring, regularlyoperated individual flightswith identical basic
definitions