Use of roadway attributes in hot spot identification and analysis.

Details

• Creators:
  Schultz, Grant G. ; Bassett, David R. ; Saito, Mitsuru ; Reese, C. Shane
• Corporate Creators:
  Brigham Young University. Dept. of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Accident Analysis Accident Prone Locations Countermeasures Data Analysis Highway Design Highway Safety Statistical Analysis
• Publication/ Report Number:
  UT- 15.10
• Resource Type:
  Tech Report
• Geographical Coverage:
  Utah
• Corporate Publisher:
  Utah. Dept. of Transportation
• Abstract:
  This research focuses on the addition of roadway attributes in the selection and analysis of ―hot spots.‖ This
  
  is in conjunction with the framework for highway safety mitigation in Utah with its six primary steps: network
  
  screening, diagnosis, countermeasure selection, economic appraisal, project prioritization, and effectiveness
  
  evaluation. The addition of roadway attributes was included as part of the network screening, diagnosis, and
  
  countermeasure selection, which are included in the methodology titled ―Hot Spot Identification and Analysis‖ in
  
  UDOT Report No. UT-13.15. Included in this research was the documentation of the steps and process for data
  
  preparation and model use for the step of network screening and the creation of report forms for the steps of
  
  diagnosis and countermeasure selection.
  
  The addition of roadway attributes is required at numerous points in the process. Methods were developed
  
  to locate and evaluate the usefulness of available data. Procedures and systemization were created to convert raw
  
  data into new roadway attributes, such as grade and vertical sag/crest curve location. For the roadway attributes to
  
  be useful in selection and analysis, methods were developed to combine and associate the attributes to crashes on
  
  problem segments and problem spots. The methodology for ―Hot Spot Identification and Analysis‖ was enhanced to
  
  include steps for inclusion and defining of the roadway attributes. These methods and procedures were used to help
  
  in the identification of safety hot spots to be analyzed and countermeasures selected. Examples of how the methods
  
  are to function are given with sites from Utah’s state roadway network.
  
  
• Format:
  PDF
• Funding:
  14-8287
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:c4da128edac558fd54d7837ce4f42fbfa783d6e3b7a3ed99cce725e2cab63f9f
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29693/dot_29693_DS1.pdf
• File Type:
  [PDF - 18.37 MB ]