AA + AD

AA + AD is the combined ground scope: Apron Arrival and Apron Departure in one view. Use it when a single _GND position works both sides.

Strips are organised into bays. A bay is either ACTIVE or LOCKED. Strips you do not own can only be acted on with REQ, except fully LOCKED strip types which cannot be requested.

Bay overview

Bay	Strip type	Notes
Messages	Messages	Free-text / coordination column.
Final	Arrival locked	Locked bay.
RWY ARR	TWY-ARR	Runway arrival segment. Can be REQ.
STAND	APN-ARR	Arrivals at gate/stand. Can be REQ.
TWY ARR	APN-ARR	Taxiing arrival after the runway; active. Transfer from GW by SI; move to STAND when parked.
TWY DEP-UPR	APN-TAXI-DEP	SI to ground west / splits.
TWY DEP-LWR	APN-TAXI-DEP	Aircraft cleared to the last hold-short before handoff; tower sees the right picture from here.
Startup	APN-PUSH	Strips arrive here after clearance when uncleared bays are active. Can be REQ in some cases.
Push back	APN-PUSH	Active. Release point chosen via pushback map; opens apron taxi map.
De-ice	APN-TAXI-DEP	Same strip family as TWY DEP; routing via hold-short links De-ice, TWY DEP-UPR, and TWY DEP-LWR.
SAS	Uncleared	Active when delivery is not covering this flow; locked if CLR DEL, DEL+SEQ, or SEQ PLN is online.
Norwegian	Uncleared	Same as SAS.
Others	Uncleared	Same uncleared behaviour as CLR DEL; sorted top-down.

Arrival side

• Final is locked; RWY ARR uses the TWY-ARR strip and may be REQ’d.
• TWY ARR and STAND: taxi on TWY ARR, park on STAND. STAND strips time out after a short period at the gate.

Departure side

• Others, SAS, Norwegian: uncleared departures awaiting clearance. Issuing a clearance sends the strip to Startup.
• Startup → Push back (release point chosen on pushback map) → De-ice / TWY DEP-UPR / TWY DEP-LWR via hold-short selections on the apron taxi map.

REQ and transfers

• Bays marked Can be REQ allow requesting a strip you do not own.
• APN-TAXI-DEP strips in TWY DEP qualify for SI transfer to the next controller (e.g. GW) per system rules.
• Manual moves are allowed between ACTIVE bays.

For clearance dialogue, PDC strip colours, and delivery workflow, see CLR DEL and Pre-departure clearance.