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Copyright © 2011 Open Geospatial Consortium.
ES UC 3 unsubscription A subscriber cancels an active subscription for SAA schedule events at the Event Service.
ES UC 4 SAA definition subscription A subscription for updates of the subscriber file for airspace definitions is made. This
subscription is made on the SAA definition update channel corresponding to the SWIM Static Repository JMS topic.
ES UC 5 SAA definition notification The SAA Universally Unique Identifier UUID for a changed SAA definition is sent to the
subscriber. To obtain the details, the subscriber then submits a WFS query for the SAA definition using the SAA UUID.
ES UC 6a Event Service heartbeat subscription A subscription for periodic heartbeat notifications is made. This subscription is made on the SAA
heartbeat channel.
ES UC 6b Event Service heartbeat notification The subscriber receives an Event Service heartbeat notification, indicating the Event Service is
still in operation.
6.3 Commercial Flight Scenario
This scenario describes a domestic commercial flight from KORD to KLAX that uses: SAA Web Feature Service WFS for flight planning by retrieving relevant SAAs based on a
spatial-temporal filter. The flight crew visually inspects the route on their enroute chart, checking SAA reservations along the route and their activation times. Airspaces are color coded according
to activation times, to facilitate planning.
SAA Event Service ES for monitoring of SAA status while en route. The flight crew receives notification of SAA activation that may impact their flight plan.
WFS for flight re-planning while en route. The flight crew modifies their flight plan, using the WFS to identify SAA locations and scheduled activation, as they did in the initial flight planning
stage.
6.3.1 Flight Planning
Dispatch personnel plans a flight from KORD to KLAX by first generating a route from departure to destination, then checking restrictions along the route, which involves checking for airspaces that are
active at the time the aircraft would pass them. The optimized flight route is then released as part of an electronic briefing package for the cockpit crew. WFS UC 3
SAA on flight path: ADA EAST MOA, ADA WEST MOA - FL70-B180 Scheduling agency: McConnel AFB, 184th Tactical Fighter Group
Controlling agency: ZKC Kansas City ARTCC
6.3.2 Flight Preparation
The cockpit crew loads the briefing package into their cockpit systems. To get familiar with the route, they visually inspect the route on their enroute chart, which involves checking SAA
reservations along the route and their activation times. WFS UC 2, ES UC 1a2a
Copyright © 2011 Open Geospatial Consortium.
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6.3.3 Flight Conduction
During the course of the flight, the activation schedule for an airspace on the route is changed. The Dispatch Office is notified by the ARTCC, and radios the change to the flight. The crew checks the
new activation schedule and location of the airspace and finds that it does not directly affect the flight. ES UC 1b2b
6.3.4 In-Flight Replanning
Severe weather is encountered and the flight has to be diverted. For planning a diversion route, the crew uses the client application, which displays on the enroute chart all SAAs, represented
differently e.g., colored depending of their activation time e.g., currently active becomes active in 248 hrs. The crew plans a diversion route avoiding active airspaces. WFS UC 1, ES UC 3, ES
UC 1a2a
6.3.5 After Flight
The subscription is removed. ES UC 3
6.4 Web Registry Service Demonstrations