.
contracting with another airline or carrier to carry some of the payload
.
contacting the local distribution center to determine if they can carry some of the payload, via truck, to another city for transport
Conclusions and Commentary
This system works well for the package carriers. It is the package carriers belief that the sweep aircraft is a “nuisance” to air traffic controllers because of it’s loitering behavior while waiting for assignment.
2.3 Inefficiencies Summary
The explicit inefficiencies documented appear to fall into the following general categories:
.
Incomplete information (e.g., intent behind flight plan change)
.
Poor timeliness, quality, or format of information
.
Poor information transfer
.
Lack of cooperation in meeting different stakeholder re-routing goals
.
Inadequate equipage
.
Conservative separation standards
.
Lack of ability of ATC to accommodate dynamic replanning
.
Invariable routes and procedures
These inefficiencies were not always explicitly tied to driving economic problems, that is, delays, inefficient fuel usage, etc., but it was clear to us that schedule-related economics were the main airline or operator drivers to which these inefficiencies were associated.
The last three items, expressed by the package carrier operator and in the ARTCC scenario, are related to the mainstream issues of Free Flight. The other inefficiencies relate more directly to CDM types of issues. These latter inefficiencies, which are the ones that will be focused on in our analysis, fall into two general categories: those due to stakeholders who have a vested interest in the process not being involved in the decision making; and those due to the decision makers not having the best information on which to make their decisions. Table 2 illustrates these inefficiencies. For many current day scenarios and airlines, the bottom right quadrant is representative of the biggest category of inefficiencies in the flight planning process, especially for en route strategic replanning.
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