GM1 to AMC6 ATS.TR.210(c)(2)(i) Operation of air traffic control service

• ED Decision 2020/008/R found in: ATM/ANS Provision of Services (2017/373) (Mar 2025)

GM1 to AMC6 ATS.TR.210(c)(2)(i) Operation of air traffic control service ED Decision 2020/008/R LONGITUDINAL SEPARATION MINIMA WITH MACH NUMBER TECHNIQUE BASED ON DISTANCE USING RNAV — APPLICATION (a) Separation should be established by maintaining not less than the specified distance between aircraft positions as reported by reference to RNAV equipment. Direct controller-pilot communications should be maintained, while such separation is used. Where high-frequency or general-purpose extended-range VHF air-ground communication channels are used for area control service and are worked by air-ground communicators, suitable arrangements should be made to permit direct controller-pilot communications, or monitoring by the air traffic controller of all air-ground communications. (b) To assist pilots to readily provide the required RNAV distance information, such position reports should, wherever possible, be referenced to a common waypoint ahead of both aircraft. (c) RNAV distance-based separation may be applied between RNAV-equipped aircraft when operating on designated RNAV routes or on ATS routes defined by VOR. (d) To facilitate application of the procedure where a considerable change of level is involved, a descending aircraft may be cleared to some convenient level above the lower aircraft, or a climbing aircraft to some convenient level below the higher aircraft, to permit a further check on the separation that will be obtained while vertical separation does not exist. GM1 to AMC6 ATS.TR.210(c)(2)(i) Operation of air traffic control service ED Decision 2020/008/R LONGITUDINAL SEPARATION MINIMA WITH MACH NUMBER TECHNIQUE BASED ON DISTANCE USING RNAV — APPLICATION (a)       Separation should be established by maintaining not less than the specified distance between aircraft positions as reported by reference to RNAV equipment. Direct controller-pilot communications should be maintained, while such separation is used. Where high-frequency or general-purpose extended-range VHF air-ground communication channels are used for area control service and are worked by air-ground communicators, suitable arrangements should be made to permit direct controller-pilot communications, or monitoring by the air traffic controller of all air-ground communications. (b)       To assist pilots to readily provide the required RNAV distance information, such position reports should, wherever possible, be referenced to a common waypoint ahead of both aircraft. (c)       RNAV distance-based separation may be applied between RNAV-equipped aircraft when operating on designated RNAV routes or on ATS routes defined by VOR. (d)       To facilitate application of the procedure where a considerable change of level is involved, a descending aircraft may be cleared to some convenient level above the lower aircraft, or a climbing aircraft to some convenient level below the higher aircraft, to permit a further check on the separation that will be obtained while vertical separation does not exist.