Travel costs associated with flood closures of state highways near Centralia/Chehalis, Washington.

Details

• Creators:
  Hallenbeck, Mark E. ; Goodchild, Anne ; Drescher, Jerome
• Corporate Creators:
  Washington State Transportation Center
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Detours Direct Costs Floods Highways Sensitivity Analysis Street Closure Travel Costs Travel Time Vehicle Miles Of Travel
• Publication/ Report Number:
  WA-RD 832.1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Washington
• Corporate Publisher:
  Washington (State). Department of Transportation. Research Office
• Abstract:
  This report discusses the travel costs associated with the closure of roads in the greater
  
  Centralia/Chehalis, Washington region due to 100-year flood conditions starting on the Chehalis River. The costs
  
  were computed for roadway closures on I-5, US 12, and SR 6, and are based on estimated road closure durations
  
  supplied by WSDOT. The computed costs are only those directly related to travel that would otherwise have
  
  occurred on the roads affected by the flooding closures. The computed costs do not include the economic losses
  
  associated with delayed delivery of goods or services, losses in economic activity attributable to travelers being
  
  unable to reach their intended destinations, or economic losses associated with the loss of goods because they
  
  could not be delivered. The reported costs do include the added costs of time and vehicle mileage associated with
  
  available detour routes. Costs were also estimated for each trip that will be abandoned. That is, this study
  
  estimated the number of trips that will not be made as a result of road closures.
  
  The researchers also conducted a sensitivity analysis of the findings for the I-5 cost computation.
  
  Sensitivity tests were conducted for the value of time, the speeds and level of congestion assumed to occur on the
  
  routes used for detours, the values associated with trips that are not made via the expected detours, the
  
  percentage of personal trips made for work/business purposes versus those being made for personal reasons, the
  
  fraction of cars and trucks willing to detour, the effects of flood closure during the weekend or the summer, and
  
  growth in traffic volumes on I-5.
  
  
• Format:
  PDF
• Funding:
  Agreement T1461, Task 07
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:8097f21baff3347cbe3539213733f07166bfd5ea79947a2906e459c942ea68366a2041ecc87a7c8f96a228118a27c4a2022c80dff9fc9ec08293e427588447f7
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28159/dot_28159_DS1.pdf
• File Type:
  [PDF - 772.03 KB ]