Enhancing NDOT's Traffic Safety Programs - Developing Nevada Specific Safety Performance Functions, Crash Reduction Factors, and Before-After Study Procedures

The release of the first-edition Highway Safety Manual (HSM) includes comprehensive and well-established procedures for conducting various traffic safety analyses. Incorporating these procedures into the Nevada Department of Transportation's (NDOT's) traffic safety program is essential for making cost-effective recommendations on safety improvement projects. Several critical issues have been identified within NDOT's current safety programs: (1) most HSM procedures are new to NDOT's safety engineers, thus timely staff training is necessary; (2) the HSM does not provide Nevada-specific Safety Performance Functions (SPF) and Crash Modification Factors (CMF); (3) the HSM procedures are data-extensive, and identification of the data needs in Nevada is critical; (4) there are multiple procedures that can be applied to a study; however, a clear recommendation on which procedure should be used is not defined in the HSM to meet NDOT's needs; (5) most procedures deal with large amount of data, and in most cases the analyses can only be carried out by using software tools. The objective of this research is to identify areas of critical needs for incorporating the HSM procedures into NDOT's traffic safety programs. These critical needs include development of Nevada-specific SPFs, CMFs, and before-after study procedures.


    • English


    • Status: Active
    • Funding: $181282.00
    • Contract Numbers:



    • Sponsor Organizations:

      Nevada Department of Transportation

      1263 South Stewart Street
      Carson City, NV  United States  89712

      Research and Innovative Technology Administration

      Department of Transportation
      1200 New Jersey Avneue, SE
      Washington, DC  United States  20590
    • Project Managers:

      Tian, Zong

    • Performing Organizations:

      Transportation Research Center

      University of Nevada, Las Vegas
      4505 Maryland Parkway, MS 4007
      Las Vegas, NV  United States  89154

      University of Nevada, Reno

      College of Engineering
      Reno, NV  United States  89557
    • Principal Investigators:

      Tian, Zong

    • Start Date: 20120701
    • Expected Completion Date: 0
    • Actual Completion Date: 20130630
    • Source Data: RiP Project 33412

    Subject/Index Terms

    Filing Info

    • Accession Number: 01470216
    • Record Type: Research project
    • Source Agency: Transportation Research Center
    • Contract Numbers: DTRT06-G-0034, P339-12-803
    • Files: UTC, RIP
    • Created Date: Jan 19 2013 1:01AM