Detection and alerting of conflicting ATC clearances (CATC) to mobiles (aircraft and vehicles) and non-conformance to procedures and clearances (CMAC) for traffic on the movement area. These functionalities will improve runway and airfield safety by providing early detection of hazardous situations that may potentially put the vehicles and aircraft at risk of collision.

CMAC and CATC shall be performed by the ATC system based on 'A-SMGCS Surveillance' (former A-SMGCS Level 1), the clearances, given to mobiles by the controller and known constraints such as the assigned runway, holding point, the route of the mobile and the aircraft type.

The controller shall input all clearances given to aircraft or vehicles into the ATC system using an Electronic Clearance Input (ECI) means such as the Electronic Flight Strip (EFS).

Different types of CATC shall be identified (for example Line-Up vs. Take-Off). Some may only be based on the controller input; others may in addition use other data such as 'A-SMGCS Surveillance' data.

CMAC shall alert controllers when aircraft and vehicles deviate from ATC instructions, procedures. 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 Monitoring and Conflict Alerting (RMCA) if in operation.

RMCA (former A-SMGCS Level 2), CATC and CMAC are the three functionalities of the 'A-SMGCS Airport Safety Support' service.

RMCA (covered by Implementation Objective AOP04.2) is seen as a pre-requisite for the deployment of the complete A-SMGCS 'Airport Safety Support' Service.

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. RMCA 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 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.

Edition

2022

Stakeholders

Air Navigation Service Provider / Airport Operator / Airspace Users

Type

PCP

Scope

Airport

Status

Removed