Do tactical controllers have responsibility for delivery of this plan, subject to the main priority of safety?
Yes, the RBT in the plan is the trajectory that the ANSP has agreed to facilitate, so delivery-to-plan must be a responsibility of the tactical controller. [It is not clear at this time how much visibility of the overall plan the controller needs. When there is deviation from the plan, this will be recognised by the system which will analyse the situation and may or may not require the controller to take remedial actions.
