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AOP22 — Minimum pair separations based on RSP

Minimum Pair Separations Based on Required Surveillance Performance (RSP)” in support of a reduction of the in-trail minimum Radar Separation focus to provide a direct positive impact on runway throughput (capacity, efficiency and resilience).

The runway capacity and in particular the runway throughput resilience in moderate, strong and very strong headwind conditions on the straight-in approach to the runway landing threshold are improved thanks to the implementation of Minimum radar separations based upon required surveillance performance implying the application (by ATC) of a non-wake turbulence separation down to 2 NM for arrivals on final approach, based upon required surveillance performance.

This minimum radar separation could be applied when separation is not constrained by wake turbulence, either because of favourable weather conditions (e.g. cross wind) or simply when the pair-wise wake turbulence separation is less than the MRS.

NOTE: This is an "Initial" objective to provide advance notice to stakeholders. Some aspects of the objective require further validation.

NOTE: The SLoAs listed in this document should be addressed to air navigation service providers as well as to airport operators. This is due to the fact that some airports operate their own ground control units for specific areas of responsibility at the airport. Airport operators providing air traffic control services qualify as ANSPs and are therefore covered by the ASP SLoAs. It is up to each implementer to check and select what is relevant to them, depending on local areas of responsibilities

NOTE FOR MILITARY AUTHORITIES: It is the responsibility of each military authority to review this Objective IN ITS ENTIRETY and address each of the SLoAs that the military authority considers RELEVANT for itself. This has to be done on top and above of the review of "MIL" SLoAs which identify actions EXCLUSIVE to military authorities.

Air Navigation Service Provider / International Organisations and Regional Bodies


Related Elements

Applicability Area(s) and Timescales

Applicability Area:
See list of airports in MP Level 3 Implementation Plan - Annexes
(Not yet defined)
Timescales From By Applicable to
IOC used for Analytics functioning only - not for implementation planning 01-01-2020
FOC used for Analytics functioning only - not for implementation planning 31-12-2030

Links to SESAR Solutions

Links to PCP ATM Sub-Functionalities

ICAO Block Modules: No associated data


Applicable legislation
Applicable ICAO Annexes and other references
Deployment Programme 2022
Operating Environments

Expected Performance Benefits

Safety maintained while increasing capacity
Increased airport capacity
Operational efficiency
Cost efficiency
  Code Title From By Related Enablers
ASP01 Approach ATC system updated for Minimum Separation Based on Required Surveillance Performance (separation delivery)
ASP02 Develop ATC Procedure to apply spacing minimum down to 2 NM
ASP03 Safety Assessment
ASP04 Training
ASP05 System in use
INT01 Regulatory provisions for Minimum-Pair separations based on RSP (Required Surveillance Performance)
Code Dates
1999 99
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2025 25

Supporting Material

Title Related SLoAs

Consultation & Approval

Working Arrangement in charge
Outline description approved in
Latest objective review at expert level
Commitment Decision Body
Objective approved/endorsed in
Latest change to objective approved/endorsed in