PBN aims to ensure global standardisation of RNAV and RNP specifications and to limit the proliferation of navigation specifications in use world-wide. It is a new concept based on the use of Area Navigation (RNAV) systems. Significantly, it is a move from a limited statement of required performance accuracy to the following: The ICAO PBN Manual (Doc 9613) definition is: Area navigation based on performance requirements for aircraft operating along an ATS route, on an instrument approach procedure or in a designated airspace. PBN is then described through means of RNAV and RNP applications with respective RNAV and RNP operations.
PBN is one of several enablers of an The others are Communications, ATS Surveillance and ATM. The PBN Concept is comprised of three components: The Navigation Specification, the Navaid Infrastructure and the Navigation Application. The Navigation Specification prescribes the performance requirements in terms of accuracy, integrity, continuity for proposed operations in a particular Airspace. The Navigation Specification also describes how these performance requirements are to be achieved i.e., which navigation functionalities are required to achieve the prescribed performance.
Associated with the navigation specification are requirements related to pilot knowledge and training and operational approval. A Navigation Specification is either an RNP specification or an RNAV specification. An RNP specification includes a requirement for on-board self-contained performance monitoring and alerting while an RNAV specification does not. The Navaid Infrastructure relates to ground- or space-based navigation aids that are called up in each Navigation Specification.
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PERFORMANCE-BASED NAVIGATION MANUAL. This document is an unedited advance version of an ICAO. This is termed Performance-based Navigation.
The availability of the navaid infrastructure has to be considered in order to enable the navigation application. The Navigation Application refers to the application of the Navigation Specification and Navaid Infrastructure in the context of an airspace concept to ATS routes and instrument flight procedures. The depicts the overall Navigation Capability and the relationship between the navigation specifications defined within the ICAO PBN Concept.
Note: Precision approach and landing systems such as the Instrument Landing System (ILS), Microwave Landing System (MLS) and GNSS Landing System (GLS) form part of the navigation suite, but are not included within the concept of Performance-based Navigation. They differ from PBN applications in that they are not based on area navigation techniques The PBN Manual The PBN Manual (Doc 9613) comprises two Volumes. Volume I of the PBN Manual is made up of two parts: Part A describes the PBN Concept, The Airspace Concept and how the PBN Concept is used in practice. Part B provides Implementation Guidance for ANSPs in the form of three processes. Volume II of the PBN Manual is also made up of three parts. Part A describes on-board performance monitoring and alerting and Safety Assessments, whilst Parts B and C contain ICAO’s RNAV and RNP specifications which are to be used by States as a basis for certification and operational approval. Click the Link Below to Download the Document.