Corridor-based forecasts of work-zone impacts for freeways.

Details

• Creators:
  Schroeder, Bastian J. ; Rouphail, Nagui M. ; Sajjadi, Soheil ; Fowler, Tyler J.
• Corporate Creators:
  North Carolina State University. Institute for Transportation Research & Education
• Corporate Contributors:
  North Carolina. Dept. of Transportation. Research and Analysis Group
• Subject/TRT Terms:
  • Work zones
  • Highway corridors
  • Highway facilities Freeway facility, Work zones, Operations, FREEVAL
• Publication/ Report Number:
  FHWA/NC/2010-08
• Resource Type:
  Tech Report
• Geographical Coverage:
  North Carolina
• Corporate Publisher:
  North Carolina. Department of Transportation. Research and Analysis Group
• Abstract:
  This project developed an analysis methodology and associated software implementation for the evaluation of ; significant work zone impacts on freeways in North Carolina. The FREEVAL-WZ software tool allows the analyst ; to predict the operational impacts of work zones, including impacts from capacity reductions, lane closures, reduced ; speed limits and traffic diversions. The research is based on the 2010 Highway Capacity Manual Freeway Facilities ; methodology and its companion FREEVAL-2010 computational engine. Through this project, the tool was ; enhanced to allow for work-zone specific impact assessment, customized to the needs of the NCDOT Traffic ; Management Unit. The tool includes a new planning-level feature that enables a quick assessment of work zone ; impacts, while still allowing for a more detailed operational analysis. The tool uses default values for work zone ; inputs specific for North Carolina conditions. However, all inputs can be adjusted by the user. Further, the ; methodology allows the analyst to calculate user cost impacts of the work zone. All calculations and algorithms in ; FREEVAL-WZ are consistent with the methodologies in the 2010 Highway Capacity Manual. The project included ; a significant field validation and model calibration efforts with operational data collected directly by NCDOT using ; field sensors. The data was used to compare predicted model performance to field operations and to develop default ; parameters for typical North Carolina work zone configurations. Project deliverables include a final report, the ; actual FREEVAL-WZ tool, and a software user manual.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23185/dot_23185_DS1.pdf
• File Type:
  [PDF - 25.30 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:6f1d2c1aa71f3f8e0246c3820384385e5e7df793c6c89dcffef03750dec090b6b065482acab5212426a4d5e9b75a7ce62adb4ab894197a8b8ca93ec20c7907ce