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Scipediacontent moved page Draft Content 614677190 to Kulkarni 2011a

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Created page with " == Abstract == Initially planned GDP duration often turns out to be an underestimate or an overestimate of the actual GDP duration. This, in turn, results in avoidable airbo..."

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== Abstract ==

Initially planned GDP duration often turns out to be an underestimate or an overestimate of the actual GDP duration. This, in turn, results in avoidable airborne or ground delays in the system. Therefore, better models of actual duration have the potential of reducing delays in the system. The overall objective of this study is to develop such models based on logs of GDPs. In a previous report, we described descriptive models of Ground Delay Programs. These models were defined in terms of initial planned duration and in terms of categorical variables. These descriptive models are good at characterizing the historical errors in planned GDP durations. This paper focuses on developing predictive models of GDP duration. Traffic Management Initiatives (TMI) are logged by Air Traffic Control facilities with The National Traffic Management Log (NTML) which is a single system for automated recoding, coordination, and distribution of relevant information about TMIs throughout the National Airspace System. (Brickman, 2004 Yuditsky, 2007) We use 2008-2009 GDP data from the NTML database for the study reported in this paper. NTML information about a GDP includes the initial specification, possibly one or more revisions, and the cancellation. In the next section, we describe general characteristics of Ground Delay Programs. In the third section, we develop models of actual duration. In the fourth section, we compare predictive performance of these models. The final section is a conclusion.

== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.2514/6.2011-6824 http://dx.doi.org/10.2514/6.2011-6824]

* [http://pdfs.semanticscholar.org/8e1e/24caab35e8ac6fb4d54eac28287a0702046e.pdf http://pdfs.semanticscholar.org/8e1e/24caab35e8ac6fb4d54eac28287a0702046e.pdf]

* [http://arc.aiaa.org/doi/pdf/10.2514/6.2011-6824 http://arc.aiaa.org/doi/pdf/10.2514/6.2011-6824],
: [http://dx.doi.org/10.2514/6.2011-6824 http://dx.doi.org/10.2514/6.2011-6824]

* [https://ti.arc.nasa.gov/publications/3672/download https://ti.arc.nasa.gov/publications/3672/download],
: [https://ntrs.nasa.gov/search.jsp?R=20110018176 https://ntrs.nasa.gov/search.jsp?R=20110018176],
: [https://repository.exst.jaxa.jp/dspace/handle/a-is/245259 https://repository.exst.jaxa.jp/dspace/handle/a-is/245259],
: [https://academic.microsoft.com/#/detail/2060877290 https://academic.microsoft.com/#/detail/2060877290]

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Kulkarni 2011a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 614677190 to Kulkarni 2011a

Scipediacontent: Created page with " == Abstract == Initially planned GDP duration often turns out to be an underestimate or an overestimate of the actual GDP duration. This, in turn, results in avoidable airbo..."