4.
Modifying goals or plans is an iterative process that requires feedforward loops to predict the impact on other aircraft and traffic flow as a whole.
Monitoring
Dispatch Air Traffic Control Flight Crew
Re-planning [Goal setting]
Modifying
-- Primary involvement -- Secondary involvement
Assessing
-- Secondary involvement
53
[Re]Planning
-- Secondary involvement
Determining Actions
Dispatch Air Traffic Control Flight Crew
54
Modifying
Dispatch Air Traffic Control Flight Crew
-- Primary involvement
-- Secondary involvement
Figure 29 summarizes the flight replanning functions that are proposed for the flight deck, highlighting those that are new or expanded based on the re-allocation analysis. It should be pointed out that the primary replanning operational tasks of constraint resolution, path optimization, and alternate selection, will have to be much more sophisticated than on today’s aircraft in order to support greater dynamic flexibility in replanning (including strategic replanning to avoid traffic) and to support real-time negotiation and collaboration in making replanning decisions. Figure 29 also provides the mapping, at a general level, between information processing descriptions and operational descriptions of flight replanning sub-functions.
5.2 Flight Deck Information Requirements and Information Flow
Having determined the flight replanning functions and allocated them to stakeholders, the next step was to allocate information requirements. For the flight deck, information requirements were arranged according to information sources (Aircraft, AOC, ATC, and Environment), with some information being shared between multiple sources. This is shown in Figure 30.
This figure shows information requirements for the flight deck according to the source of the information or the stakeholder with responsibility for the associated function. The central focus of the figure is the region where the flight deck, AOC, and ATC all exercise control over the flight path (they each provide flight path information with the intent of determining the path to be flown). This, then, is an area where controlling interests can clash, and represents a possible source of inefficiencies because a stakeholder with one set of interests (such as flow management or separation assurance for ATC) can usurp the decisions of a stakeholder with another set of interests (such as schedule integrity for the AOC). For example, the controller may issue a re-routing clearance directly to an aircraft without regard for the fleet scheduling objectives of the AOC, preventing AOC from realizing the objectives that led to the original route plan. This depiction provides a convenient means of gathering the information requirements into a structured format and starting the development of a model of information flow. It also allows areas where conflicts or inefficiencies may arise to be identified. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：Airborne-Based Conflict Probe(47)
