current aircraft status gather status information flight status: . position . lateral path . altitude . speed . payload . fuel on board . mechanical . performance . passengers . crew . connections . arrival times . priority
Goals Constraints Functions Information
enforce route decision communicate route choice rationale route information and rationale
Tables B: Relationships between constraints, functions, and information requirements that are relevant for each identified goal
It should be noted that there are many overlaps in constraints, functions, and information requirements between goals. These overlaps will determine those areas where pilots, controllers, and airline operations personnel will require shared information.
Function Allocations
The next step is to allocate the functions identified in Tables B to the various levels of control, and their associated personnel, based on the relationships between the functions in Tables B and their goals, and between the goals and their associated levels of concern in Table
A. For example, if the function “avoid traffic delays” is associated with the goal to “save crew costs”, and this goal in turn is applicable to the “fleet control” level of concern, then the airline operations personnel will be assigned the function of “avoid traffic delays”. This same function may also be assigned to other personnel, but the specific information requirements associated with the function may differ from level to level.
Individual aircraft functions are assigned to the flight deck and are the responsibility of the flight crew. Area control functions are assigned to the air traffic controller, traffic flow management, and other regulatory personnel whose job is to manage the flow of traffic across fleets. Fleet level control functions are assigned to the airlines operations personnel whose job is to manage resources within fleets. Where functions are assigned to multiple parties, a shared responsibility exists. In these cases, preference should generally be given to airline operations personnel for fleet management issues, controllers for area management issues, and flight crews for flight deck level issues. Therefore, numbers are assigned to each function to indicate primary, secondary, or tertiary responsibility, except for those functions without constraints (these functions involve assessing options rather than managing constraints; an example is to check company route options).
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