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Efficiency Metric |
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The aim of the INTEGRA Efficiency metric is to be a standard metric for use in any real-time simulation. This metric quantifies the efficiency of trajectories flown within a given ATM system, where an ATM system represents either a control sector, a flight-information region, or is defined geographically in terms of an airspace volume or flight phase (i.e. aircraft in take-off, climbing, en-route, descending or landing phases). It compares the planned aircraft trajectories against the actual trajectories flown and determines the deviation of the actual trajectory against the planned trajectory to calculate an overall efficiency.
Efficiency can be calculated from a number of viewpoints, e.g. fuel burn, emissions (CO2, NO etc.), engine maintenance costs and crew costs.
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It is important to remember that the INTEGRA Efficiency metric will provide a measure of the total ATM system efficiency. The results obtained for individual sector efficiency have to be seen in context of the complete gate to gate philosophy for ATM operations. The consequence of optimizing an aircraft’s trajectory by giving a direct route through one sector and into an adjacent sector may well lead to a shorter route in the first sector which will show increased efficiency, however, the direct route may cause an increase in route length in the subsequent sector which will have a detrimental effect on that sectors efficiency.
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The INTEGRA Efficiency Metric is documented in the following:
| Detailed Specification of ATM System Efficiency Metric
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| Software Development Documentation of ATM System Efficiency Metric
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| Efficiency Algorithm Assessment
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Last validation: 18/01/2005
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