AOP12 — Improve runway and airfield safety with ATC clearances monitoring

Improve runway and airfield safety with ATC clearances monitoring (i.e.: 'Airport safety nets' in PCP terminology) consists of the detection and alerting of conflicting ATC clearances to aircraft and deviation of vehicles and aircraft from their instructions, procedures or routing which may potentially put the vehicles and aircraft at risk of a collision.

The scope of this objective includes the Runway and Airfield Surface Movement area. ATC support tools at the aerodrome shall provide the detection of Conflicting ATC Clearances as well as deviations from ATC instructions, procedures or routes and shall be performed by the ATC system based on the knowledge of data including the clearances given to aircraft and vehicles by the air traffic controller, the assigned runway and holding point. The air traffic controller shall input all clearances given to aircraft or vehicles into the ATC system using a digital system, such as the EFS. Different types of conflicting clearances shall be identified (for example Line-Up vs. Take-Off). Some may only be based on the air traffic controller input; others may in addition use other data such as A-SMGCS surveillance data. 'Airport Safety Nets' tools shall alert air traffic controllers when aircraft and vehicles deviate from ATC instructions, procedures or routes. The detection of Conflicting ATC Clearances shall aim to provide an early prediction of situations that if not corrected would end up in hazardous situations that would be detected in turn by the runway incursion monitoring system (RIMS) if in operation. A-SMGCS level 2 (covered by ESSIP Objective AOP04.2) is seen as a pre-requisite for the deployment of Airport Safety Nets.

Note: Safety nets have been defined for and through regulation/specifications for other environments and RWY environment partly. If the term 'Airport safety net' is not consistent with those definitions, it will however be used in this objective for consistency with PCP terminology, Actually, this objective is affecting the safety nets and controller support tools envelopes. A-SMGCS Level 2 is a RWY safety net and provides alerts on hazardous situations on the RWY, regardless of whether the a/c have been cleared or not by ATC, which fits perfectly on the safety nets umbrella.

Note: An action has been launched with the SJU to clarify the operational scope of the functionality as well as to improve the consistency of the terminology.

NOTE FOR MILITARY AUTHORITIES: It is the responsibility of each Military Authority to review this ESSIP 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 MIL Authorities.

Air Navigation Service Provider / Airport Operator / Airspace Users


Applicability Area(s) and Timescales

Applicability Area (PCP Airports):
See list of Airports in ESSIP Plan - Annex D
(As in PCP Regulation for S-AF2.5)
Timescales From By Applicable to
Initial operational capability 01-01-2015 Applicability Area (PCP Airports)
Full operational capability 31-12-2020 Applicability Area (PCP Airports)

Links to PCP ATM Sub-Functionalities


Applicable legislation
Regulation (EU) No 716/2014 on the establishment of the Pilot Common Project
Applicable ICAO Annexes and other references
Deployment Programme 2016
Family 2.1.2 - Electronic Flight Strips (EFS)
Family 2.5.1 - Airport Safety Nets associated with A-SMGCS (Level 2)
Operating Environments

Expected Performance Benefits

Improved situational awareness of all actors.
Enhanced through optimal use of airside and landside facilities and services, better use of airport and ATFM slots.
Operational efficiency
More efficient airside and landside operations management resulting reduced fuel burn.
Cost efficiency
Reduced noise and emissions due to limiting engine ground running time due to better timed operations.
  Code Title From By Related Enablers
ASP01 Install required 'Airport Safety Nets'
  • 01-01-2015
  • 31-12-2020
ASP02 Train aerodrome control staff on the functionality of 'Airport Safety Nets'
  • 01-01-2015
  • 31-12-2020
ASP03 Implement digital systems such as Electronic Flight Strips (EFS)
  • 01-01-2015
  • 31-12-2020
APO01 Train all relevant staff on the functionality of 'Airport Safety Nets'
  • 01-01-2015
  • 31-12-2020
USE01 Train Pilots on the functionality of 'Airport Safety Nets'
  • 01-01-2015
  • 31-12-2020
Code Dates
1999 99
2000 00
2001 01
2002 02
2003 03
2004 04
2005 05
2006 06
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2008 08
2009 09
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2011 11
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2013 13
2014 14
2015 15
2016 16
2017 17
2018 18
2019 19
2020 20
2021 21
2022 22
2023 23
2024 24
2025 25

Supporting Material

Title Related SLoAs

EUROCONTROL - Functional Requirements for A-SMGCS Implementation Level 2 - Edition 2.1 / 06/2010

APO01, ASP01, ASP02

EUROCONTROL - Integrated Tower Working Position Functional Requirements - V3.0 / 03/2009


SJU - SESAR Solution 02: Data Pack for airport safety nets for controllers

APO01, ASP01, ASP02, USE01

Consultation & Approval

Working Arrangement in charge
Airport Operations Team (AOT)
Outline description approved in
Latest objective review at expert level
Commitment Decision Body
Provisional Council (PC)
Objective approved/endorsed in
Latest change to objective approved/endorsed in