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:
  • Highways
  • Floods
  • Street closure
  • Travel costs
  • Direct costs
  • Detours
  • Sensitivity analysis
  • 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.
  More +
• Format:
  PDF
• Funding:
  Agreement T1461, Task 07
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28159/dot_28159_DS1.pdf
• File Type:
  [PDF - 772.03 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:8097f21baff3347cbe3539213733f07166bfd5ea79947a2906e459c942ea68366a2041ecc87a7c8f96a228118a27c4a2022c80dff9fc9ec08293e427588447f7