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Navigating Disruptions: Examining Weather-Induced Road Closures and Structural Vulnerabilities in North Carolina's Road Network
Navigating Disruptions: Examining Weather-Induced Road Closures and Structural Vulnerabili...
Navigating Disruptions: Examining Weather-Induced Road Closures and Structural Vulnerabilities in North Carolina's Road Network

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211153038
ISBN  
9798346868590
DDC  
910
저자명  
Cardwell, Julia.
서명/저자  
Navigating Disruptions: Examining Weather-Induced Road Closures and Structural Vulnerabilities in North Carolinas Road Network
발행사항  
[Sl] : The University of North Carolina at Chapel Hill, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
112 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-06, Section: B.
주기사항  
Advisor: Konrad, Charles;Delamater, Paul.
학위논문주기  
Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2024.
초록/해제  
요약Weather-related road closures have the potential to disrupt society in significant ways. Existing academic literature has already shown that impacts from weather-related road closures can be extreme and affect aspects of societal function like passenger travel and access to essential services. By modifying existing graph theory approaches to analyzing network function to more realistically represent passenger travel, this dissertation examines the function of the North Carolina road network with an interest in impacts caused by weather-related road closures. Using an 8-year archive of historical weather-related road closures across the state, results in Chapter 2 indicate that the state has experienced both acute and cumulative impacts to free-flow travel time from these closures-with rural areas in the state emerging as the most impacted regions. Using a 100-year modeled flood event, Chapter 3 examines road segment-level routing change to local hospitals in rural areas and determines that flood events dramatically change network flow on non-closed roads-increasing concentration on lower-order roads and prioritizing alternative paths not seen in the pre-flood scenario. Finally, Chapter 4 proposes a simple metric to track redundancy (the availability of alternative routes) and applies it to rural census block groups across the state. The results indicate that even among rural areas, which are homogenized in the literature on road network function, there is high variability in redundancy. In total, this dissertation contributes to existing literature by maintaining an analytical focus on rural areas and a methodological focus on improving existing metrics for analyzing road network function using graph theory.
일반주제명  
Geography
일반주제명  
Applied mathematics
일반주제명  
Climate change
키워드  
Graph theory
키워드  
Weather-related road closures
키워드  
Rural areas
키워드  
Road network function
기타저자  
The University of North Carolina at Chapel Hill Geography
기본자료저록  
Dissertations Abstracts International. 86-06B.
전자적 위치 및 접속  
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■035    ▼a(MiAaPQ)AAI31638348
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a910
■1001  ▼aCardwell,  Julia.
■24510▼aNavigating  Disruptions:  Examining  Weather-Induced  Road  Closures  and  Structural  Vulnerabilities  in  North  Carolina's  Road  Network
■260    ▼a[Sl]▼bThe  University  of  North  Carolina  at  Chapel  Hill▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a112  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-06,  Section:  B.
■500    ▼aAdvisor:  Konrad,  Charles;Delamater,  Paul.
■5021  ▼aThesis  (Ph.D.)--The  University  of  North  Carolina  at  Chapel  Hill,  2024.
■520    ▼aWeather-related  road  closures  have  the  potential  to  disrupt  society  in  significant  ways.  Existing  academic  literature  has  already  shown  that  impacts  from  weather-related  road  closures  can  be  extreme  and  affect  aspects  of  societal  function  like  passenger  travel  and  access  to  essential  services.  By  modifying  existing  graph  theory  approaches  to  analyzing  network  function  to  more  realistically  represent  passenger  travel,  this  dissertation  examines  the  function  of  the  North  Carolina  road  network  with  an  interest  in  impacts  caused  by  weather-related  road  closures.  Using  an  8-year  archive  of  historical  weather-related  road  closures  across  the  state,  results  in  Chapter  2  indicate  that  the  state  has  experienced  both  acute  and  cumulative  impacts  to  free-flow  travel  time  from  these  closures-with  rural  areas  in  the  state  emerging  as  the  most  impacted  regions.  Using  a  100-year  modeled  flood  event,  Chapter  3  examines  road  segment-level  routing  change  to  local  hospitals  in  rural  areas  and  determines  that  flood  events  dramatically  change  network  flow  on  non-closed  roads-increasing  concentration  on  lower-order  roads  and  prioritizing  alternative  paths  not  seen  in  the  pre-flood  scenario.  Finally,  Chapter  4  proposes  a  simple  metric  to  track  redundancy  (the  availability  of  alternative  routes)  and  applies  it  to  rural  census  block  groups  across  the  state.  The  results  indicate  that  even  among  rural  areas,  which  are  homogenized  in  the  literature  on  road  network  function,  there  is  high  variability  in  redundancy.  In  total,  this  dissertation  contributes  to  existing  literature  by  maintaining  an  analytical  focus  on  rural  areas  and  a  methodological  focus  on  improving  existing  metrics  for  analyzing  road  network  function  using  graph  theory.
■590    ▼aSchool  code:  0153.
■650  4▼aGeography
■650  4▼aApplied  mathematics
■650  4▼aClimate  change
■653    ▼aGraph  theory
■653    ▼aWeather-related  road  closures
■653    ▼aRural  areas
■653    ▼aRoad  network  function
■690    ▼a0366
■690    ▼a0404
■690    ▼a0364
■71020▼aThe  University  of  North  Carolina  at  Chapel  Hill▼bGeography.
■7730  ▼tDissertations  Abstracts  International▼g86-06B.
■790    ▼a0153
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164737▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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