<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-19T12:53:44Z</responseDate><request verb="GetRecord" identifier="oai:dspace.mit.edu:1721.1/97944" metadataPrefix="dim">https://dspace.mit.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:dspace.mit.edu:1721.1/97944</identifier><datestamp>2022-01-13T07:55:14Z</datestamp><setSpec>com_1721.1_7582</setSpec><setSpec>com_1721.1_7581</setSpec><setSpec>col_1721.1_131023</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">Hamsa Balakrishnan.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Fornés Martinez, Hèctor</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="other" lang="en_US">Massachusetts Institute of Technology. Department of Aeronautics and Astronautics.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Department of Aeronautics and Astronautics</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Engineering Systems Division</dim:field>
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   <dim:field mdschema="dc" element="date" qualifier="accessioned">2015-07-31T18:18:31Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="available">2015-07-31T18:18:31Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="copyright" lang="en_US">2015</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">2015</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/1721.1/97944</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="oclc" lang="en_US">914803803</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis: S.M. in Technology and Policy, Massachusetts Institute of Technology, Engineering Systems Division, 2015.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">This electronic version was submitted by the student author.  The certified thesis is available in the Institute Archives and Special Collections.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Cataloged from student-submitted PDF version of thesis.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references (pages 138-141).</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract" lang="en_US">Implementations of surface traffic management strategies at congested airports have the potential to yield significant benefits, but must account for the constraints and objectives of multiple stakeholders. This thesis considers the implementation of pushback control policies at LaGuardia Airport in New York. This class of control policies regulate departure pushback rates by holding aircraft at their gates during congested periods, in a manner that maintains the departure throughput of the airport while reducing the taxi-out time. Such a time reduction leads to reductions in fuel burn and emissions. The main contribution of this thesis is the consideration of gate-holding limits at the gate which aim at including operational benefit-cost analysis in addition to the pushback control. The main consequence of those gate holds are gate conflicts and take-off order swaps, which are analyzed in detail throughout this thesis. The results show that taxi-out savings are a nonlinear and increasing function of gate-holding limit, and thus, more benefits are expected from longer gate conflict limits. However, the non-linear component creates opportunities for additional benefits with marginal cost increases. On the cost side, gate-holding times are the biggest component, but are commensurate with the benefits. One held minute translates to one saved minute in taxi-out; this finding holds true regardless of the gate-holding limit. Departure order swaps and gate conflicts increase as stricter limits are imposed on the gate-holding times, but not significantly. The benefits and costs are shown to be approximately equivalent to the share of the airlines departures at LaGuardia, demonstrating a fair allocation strategy.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by Hector Fornes Martinez.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">S.M. in Technology and Policy</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">S.M.</dim:field>
   <dim:field mdschema="dc" element="format" qualifier="extent" lang="en_US">141 pages</dim:field>
   <dim:field mdschema="dc" element="language" qualifier="iso" lang="en_US">eng</dim:field>
   <dim:field mdschema="dc" element="publisher" lang="en_US">Massachusetts Institute of Technology</dim:field>
   <dim:field mdschema="dc" element="rights" lang="en_US">M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.</dim:field>
   <dim:field mdschema="dc" element="rights" qualifier="uri" lang="en_US">http://dspace.mit.edu/handle/1721.1/7582</dim:field>
   <dim:field mdschema="dc" element="subject" lang="en_US">Engineering Systems Division.</dim:field>
   <dim:field mdschema="dc" element="subject" lang="en_US">Technology and Policy Program.</dim:field>
   <dim:field mdschema="dc" element="subject" lang="en_US">Aeronautics and Astronautics.</dim:field>
   <dim:field mdschema="dc" element="title" lang="en_US">Analysis of potential implementations of pushback control at LaGuardia Airport</dim:field>
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   	&lt;Title>Analysis of potential implementations of pushback control at LaGuardia Airport&lt;/Title>
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   	&lt;PublicationDate>2015&lt;/PublicationDate>
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        	&lt;DisplayName>Fornés Martinez, Hèctor&lt;/DisplayName>
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   	&lt;Abstract>Implementations of surface traffic management strategies at congested airports have the potential to yield significant benefits, but must account for the constraints and objectives of multiple stakeholders. This thesis considers the implementation of pushback control policies at LaGuardia Airport in New York. This class of control policies regulate departure pushback rates by holding aircraft at their gates during congested periods, in a manner that maintains the departure throughput of the airport while reducing the taxi-out time. Such a time reduction leads to reductions in fuel burn and emissions. The main contribution of this thesis is the consideration of gate-holding limits at the gate which aim at including operational benefit-cost analysis in addition to the pushback control. The main consequence of those gate holds are gate conflicts and take-off order swaps, which are analyzed in detail throughout this thesis. The results show that taxi-out savings are a nonlinear and increasing function of gate-holding limit, and thus, more benefits are expected from longer gate conflict limits. However, the non-linear component creates opportunities for additional benefits with marginal cost increases. On the cost side, gate-holding times are the biggest component, but are commensurate with the benefits. One held minute translates to one saved minute in taxi-out; this finding holds true regardless of the gate-holding limit. Departure order swaps and gate conflicts increase as stricter limits are imposed on the gate-holding times, but not significantly. The benefits and costs are shown to be approximately equivalent to the share of the airlines departures at LaGuardia, demonstrating a fair allocation strategy.&lt;/Abstract>
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