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Towards the Implementation of a Geotechnical Asset Management Program in Georgia
Towards the Implementation of a Geotechnical Asset Management Program in Georgia
Towards the Implementation of a Geotechnical Asset Management Program in Georgia

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105522
ISBN  
9798263339050
DDC  
620
저자명  
Gonzalez, Jose M.Torres.
서명/저자  
Towards the Implementation of a Geotechnical Asset Management Program in Georgia
발행사항  
[Sl] : Georgia Institute of Technology, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
349 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Macedo, Jorge;Burns, Susan E.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
초록/해제  
요약The state of Georgia has been managing transportation assets following costeffective operation, maintenance, and inspection protocols to achieve the goals and objectives defined in Georgia's Transportation Asset Management Plan (TAMP), which aligns state practices with federal objectives to enhance and preserve U.S. infrastructure. Georgia transportation corridors consist of various asset classes, such as pavements, bridges, culverts, retaining walls, and slopes, to name a few. The Georgia Department of Transportation (GDOT) manages bridges and pavements through its respective divisions, which, under recent TAMP policies, periodically assess the state of the assets and establish long-term life cycle strategies based on factors such as criticality, deterioration, and financial constraints. However, geotechnical assets (e.g., retaining walls, slopes, embankments, etc.) have been overlooked, rarely tracked, and not subjected to similar standards, although their potential failure may lead to significant traveler delay, property damage, and safety concerns for surrounding communities. Because of this interdependence, the need to manage geotechnical assets under similar or improved strategies is necessary to maintain federally required statewide levels of safety and service in transportation corridors.This research seeks to enable a new geotechnical asset management (GAM) program in Georgia by developing a structured framework and a GIS-based computational system for implementing it in sequential phases. The proposed framework and system are developed based on the guidance in the National Cooperative Highway Research Program (NCHRP, 2019a) "Geotechnical Asset Management for Transportation Agencies - Research Report 903" but also considers inventory, inspection, and risk-based managementpractices successfully implemented in U.S. transportation agencies when required. The developed GIS-based computational system fosters the proposed GAM framework for Georgia and enables inventory, risk-based inspections, and decision-making processes to efficiently allocate funding depending on asset deterioration and safety and mobility risks. Furthermore, consistent with the recommended approach in the NCHRP (2019a) and FHWA (2017) reports, the value of a lean start, which can be continuously refined, is emphasized. The geotechnical assets to be considered were defined in consultation with the Geotechnical Bureau of the Office of Materials and Testing (OMAT) at GDOT, including retaining walls, slopes, embankments, and bridge foundations. They have been selected as they are critical pieces of the infrastructure that provide mobility, safety, costeffectiveness, and economic viability of the overall transportation system in Georgia.The proposed GAM framework comprises a six-step methodological sequence: Definition and Acceptance Criteria, Inventory, Inspection, Risk Analysis, Results, and Evaluation and Refinement. In the Definition step, relevant geotechnical features for different geotechnical assets are considered, separating them into mandatory and optional based on the ease of collecting them and their relative importance for the state. In the Inventory step, this work facilitates (1) inventory during design, which includes the inventory of geotechnical assets in upcoming construction projects; (2) as-built inventory, considering the inventory of assets right after construction; and (3) inventory of existing assets. The Inspection step focuses on assessing the asset condition, identifying vulnerable surrounding assets, and assigning maintenance inspections and the periodicity based on the qualitative evaluation of failure consequences and deterioration. Subsequently, in the Risk Analysis step, the Level of Risk (LOR) is calculated as a result of the inherent risksassociated with safety and mobility failure consequences on the portion of the analyzed corridor. Lastly, in the Results and Evaluation steps, GAM metrics should be presented to facilitate decision-making processes for selecting optimal operation and maintenance strategies, allocating funds, and refining strategies to enhance the GAM program and improve ongoing workflow steps.
일반주제명  
Construction
일반주제명  
Failure
일반주제명  
Photogrammetry
일반주제명  
Funding
일반주제명  
Decision making
일반주제명  
Roads & highways
일반주제명  
Transportation planning
일반주제명  
Design
일반주제명  
Bridges
일반주제명  
Transportation
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aGonzalez,  Jose  M.Torres.
■24510▼aTowards  the  Implementation  of  a  Geotechnical  Asset  Management  Program  in  Georgia
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2024
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■300    ▼a349  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Macedo,  Jorge;Burns,  Susan  E.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2024.
■520    ▼aThe  state  of  Georgia  has  been  managing  transportation  assets  following  costeffective  operation,  maintenance,  and  inspection  protocols  to  achieve  the  goals  and  objectives  defined  in  Georgia's  Transportation  Asset  Management  Plan  (TAMP),  which  aligns  state  practices  with  federal  objectives  to  enhance  and  preserve  U.S.  infrastructure.  Georgia  transportation  corridors  consist  of  various  asset  classes,  such  as  pavements,  bridges,  culverts,  retaining  walls,  and  slopes,  to  name  a  few.  The  Georgia  Department  of  Transportation  (GDOT)  manages  bridges  and  pavements  through  its  respective  divisions,  which,  under  recent  TAMP  policies,  periodically  assess  the  state  of  the  assets  and  establish  long-term  life  cycle  strategies  based  on  factors  such  as  criticality,  deterioration,  and  financial  constraints.  However,  geotechnical  assets  (e.g.,  retaining  walls,  slopes,  embankments,  etc.)  have  been  overlooked,  rarely  tracked,  and  not  subjected  to  similar  standards,  although  their  potential  failure  may  lead  to  significant  traveler  delay,  property  damage,  and  safety  concerns  for  surrounding  communities.  Because  of  this  interdependence,  the  need  to  manage  geotechnical  assets  under  similar  or  improved  strategies  is  necessary  to  maintain  federally  required  statewide  levels  of  safety  and  service  in  transportation  corridors.This  research  seeks  to  enable  a  new  geotechnical  asset  management  (GAM)  program  in  Georgia  by  developing  a  structured  framework  and  a  GIS-based  computational  system  for  implementing  it  in  sequential  phases.  The  proposed  framework  and  system  are  developed  based  on  the  guidance  in  the  National  Cooperative  Highway  Research  Program  (NCHRP,  2019a)  "Geotechnical  Asset  Management  for  Transportation  Agencies  -  Research  Report  903"  but  also  considers  inventory,  inspection,  and  risk-based  managementpractices  successfully  implemented  in  U.S.  transportation  agencies  when  required.  The  developed  GIS-based  computational  system  fosters  the  proposed  GAM  framework  for  Georgia  and  enables  inventory,  risk-based  inspections,  and  decision-making  processes  to  efficiently  allocate  funding  depending  on  asset  deterioration  and  safety  and  mobility  risks.  Furthermore,  consistent  with  the  recommended  approach  in  the  NCHRP  (2019a)  and  FHWA  (2017)  reports,  the  value  of  a  lean  start,  which  can  be  continuously  refined,  is  emphasized.  The  geotechnical  assets  to  be  considered  were  defined  in  consultation  with  the  Geotechnical  Bureau  of  the  Office  of  Materials  and  Testing  (OMAT)  at  GDOT,  including  retaining  walls,  slopes,  embankments,  and  bridge  foundations.  They  have  been  selected  as  they  are  critical  pieces  of  the  infrastructure  that  provide  mobility,  safety,  costeffectiveness,  and  economic  viability  of  the  overall  transportation  system  in  Georgia.The  proposed  GAM  framework  comprises  a  six-step  methodological  sequence:  Definition  and  Acceptance  Criteria,  Inventory,  Inspection,  Risk  Analysis,  Results,  and  Evaluation  and  Refinement.  In  the  Definition  step,  relevant  geotechnical  features  for  different  geotechnical  assets  are  considered,  separating  them  into  mandatory  and  optional  based  on  the  ease  of  collecting  them  and  their  relative  importance  for  the  state.  In  the  Inventory  step,  this  work  facilitates  (1)  inventory  during  design,  which  includes  the  inventory  of  geotechnical  assets  in  upcoming  construction  projects;  (2)  as-built  inventory,  considering  the  inventory  of  assets  right  after  construction;  and  (3)  inventory  of  existing  assets.  The  Inspection  step  focuses  on  assessing  the  asset  condition,  identifying  vulnerable  surrounding  assets,  and  assigning  maintenance  inspections  and  the  periodicity  based  on  the  qualitative  evaluation  of  failure  consequences  and  deterioration.  Subsequently,  in  the  Risk  Analysis  step,  the  Level  of  Risk  (LOR)  is  calculated  as  a  result  of  the  inherent  risksassociated  with  safety  and  mobility  failure  consequences  on  the  portion  of  the  analyzed  corridor.  Lastly,  in  the  Results  and  Evaluation  steps,  GAM  metrics  should  be  presented  to  facilitate  decision-making  processes  for  selecting  optimal  operation  and  maintenance  strategies,  allocating  funds,  and  refining  strategies  to  enhance  the  GAM  program  and  improve  ongoing  workflow  steps.
■590    ▼aSchool  code:  0078.
■650  4▼aConstruction
■650  4▼aFailure
■650  4▼aPhotogrammetry
■650  4▼aFunding
■650  4▼aDecision  making
■650  4▼aRoads  &  highways
■650  4▼aTransportation  planning
■650  4▼aDesign
■650  4▼aBridges
■650  4▼aTransportation
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■690    ▼a0800
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■690    ▼a0454
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■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360418▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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