A knowledge of the allowance made (if any) for controller intervention in the formulation of a particular separation standard logically provides the basis by which the applicability of that standard to any given airspace and ATC system may be assessed. New separation standards should specify comprehensively what performance assumptions have been made about the time required for the controller to recognise and intervene in the collision risk assessment.
IFATCA Policy is:The Controller Intervention Buffer be defined as: The time required for the Air Traffic Controller to intervene ensuring that a collision would be averted in the event that a separation standard being applied breaks down. This will include an allowance:
A Controller Intervention Buffer should be included in the development and specification of any separation minima where controller intervention is used as a risk mitigator. |
| See: WP 82 – Geneva 2001 |
IFATCA Policy is:ATC systems should be developed with the capability to monitor relevant Controller Intervention Capability (CIC) parameters and warn controllers when they fall outside the values used in determining separation standards in use so that alternative standards can be applied. |
| See: WP 87 – Cancun 2002
See also: WP 84 – Buenos Aires 2003 |
Last Update: September 29, 2020