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Pages 63-66

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From page 63...
... Metrics for Assessing the Impact of Procedures | 61 Metrics for Assessing the Impact of Procedures10 There are numerous metrics to assess the impacts of PBN procedures on the airport, the local community, aircraft operators, and other stakeholders. Selection of metrics depends upon the primary stakeholders and their objectives for the PBN initiative.
From page 64...
... 62 | UNDERSTANDING THE AIRPORT'S ROLE IN PERFORMANCE-BASED NAVIGATION METRIC DESCRIPTION Flight Efficiency • Average gate-to-gate times or distances are the average of the elapsed times of flights between departing from origin airport gate and arriving to destination airport gate (Federal Aviation Administration 2013g)
From page 65...
... Metrics for Assessing the Impact of Procedures | 63 The details and considerations regarding these metrics to assess the impacts of PBN procedures at an airport are described as follows: • Regarding capacity, the average hourly operations can be computed to track airport capacity and any changes due to PBN procedures. • Regarding flight efficiency, PBN procedures can help to reduce the flight time and distance in the terminal airspace.
From page 66...
... 64 | UNDERSTANDING THE AIRPORT'S ROLE IN PERFORMANCE-BASED NAVIGATION of people exposed to noise in individual DNL bands with the PBN procedures versus the conventional procedures. Regarding the detailed evaluation of noise of aircraft flying PBN procedures, which may not be categorically excluded or have already been implemented, detailed noise assessment may be performed using computer models approved by the FAA.

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