International Civil Aviation Organization ASBU/SIP/Mexico/2012-WP/20 E Aviation System Block Upgrades Module N B0-86/PIA-3 Improved Access to Optimum Flight Levels through Climb/Descent Procedures using ADS-B Workshop on preparations for ANConf/12 ASBU methodology (Mexico City, 27 February-2 March 2012)
Module N B0-86 Improved Access to Optimum Flight Levels through Climb/Descent Procedures using ADS-B Summary Prevent flights to be trapped at an unsatisfactory altitude for a prolonged period of time. The In Trail Procedure (ITP) uses ADS-B based separation minima to enable an aircraft to climb or descend through the altitude of other aircraft when the requirements for procedural separation cannot be met. Main Performance Impact KPA-02 Capacity, KPA -04 Efficiency and KPA-05 Environment. Operating Environment/Phases of Flight Applicability Considerations Global Concept Component(s) Global Plan Initiatives (GPI) En-Route Oceanic and potentially continental en-route CM, AUO, AOM GPI-9, GPI-7 Pre-Requisites Global Readiness Checklist NIL Standards Readiness Avionics Availability Infrastructure Availability Ground Automation Availability Procedures Available Operations Approvals Status (ready now or estimated date). 2
Module N B0-86 - Baseline ITP using ADS-B is in operational use and hence can be considered to be a baseline. 3
Module N B0-86 Change Brought ITP reduces fuel-burn and emissions by allowing aircraft to overcome altitude constraints due to aircraft flying at higher or lower altitudes and fly at the most efficient altitude. ITP also provides safety benefits by providing a tool to manage contingency scenarios such as climbing out of turbulence and potentially avoiding weather. ITP using ADS-B will require both aircraft to have ADS-B OUT capability, while the manoeuvring aircraft will require ADS-B IN. 4
Module N B0-86 Intended Performance Improvement Capacity Improvement in capacity on a given air route Efficiency Increased efficiency on oceanic and potentially continental en-route. Environment Reduced emissions 5
Module N B0-86 Necessary Procedures Procedures for ITP using ADS-B have been developed and a PANS-ATM Amendment is in progress Additional information will be available in ICAO circular: Safety Assessment for the development of Separation Minima and Procedures for In-Trail Procedure (ITP) using Automatic Dependant Surveillance Broadcast (ADS-B) Version 1.5.3 6
Module N B0-86 System Capabilities Avionics Aircrafts performing the in-train procedure will require an ADS-B IN capability compliant with DO-312/ED-159. Other aircrafts involved in the procedure will require an ADS-B OUT capability compliant with DP-312-/ED-159. CPDLC by FANS 1A will also be required. Ground Systems NIL 7
Module N B0-86 Regulatory Standardization needs For ITP using ADS-B, the following documents apply: AC 20-172 TSO C195 FAA Memo; Interim Policy and Guidance Automatic Dependent Surveillance Broadcast (ADS-B) Aircraft Surveillance Systems Supporting Oceanic In-Trail Procedures (ITP). Dated: May 10, 2010. DO-312/ED-159 ASA MOPS DO-317A/ED-194 8
Module N B0-86 Reference Documents Standards EUROCONTROL ATSAW Deployment Plan(Draft) RTCA DO-312: Safety, Performance and Interoperability Requirements Document for the In-Trail Procedure in Oceanic Airspace (ATSA-ITP) Application. EUROCAE ED-159: Safety, Performance and Interoperability Requirements Document for ATSA-ITP Application 9
Module N B0-86 Implementation - Baseline and Elements Improved Access to Optimum Flight Levels through Climb/Descent Procedures using ADS-B Elements: In trail procedure(itp) using ADS-B To be reflected in ANRF 10
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