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:
  • Highway design
  • Accident prone locations
  • Accident analysis
  • Data analysis
  • Statistical analysis
  • Highway safety
  • Countermeasures
• 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.
  More +
• Format:
  PDF
• Funding:
  14-8287
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29693/dot_29693_DS1.pdf
• File Type:
  [PDF - 18.37 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:c4da128edac558fd54d7837ce4f42fbfa783d6e3b7a3ed99cce725e2cab63f9f