Incorporating Human Factors Guidelines into Transportation Projects, Programs, and Practices

NCHRP Report 600: Human Factors Guidelines for Road Systems (HFG) serves as a reference to help transportation practitioners in the areas of safety, design, and operation. The HFG provides a greater understanding of road users’ capabilities and limitations and how these issues could be incorporated into transportation agencies' decision-making processes. A fourth edition of the HFG is currently under development as part of NCHRP Project 22-46, "Human Factors Guidelines for Road Systems, Proposed 4th Edition." This new edition seeks to further document the best-available research and practices regarding human factors and road user interactions in road safety analyses and design to optimize data-driven safety analysis and decision-making. Despite significant efforts to develop and support the use of the HFG, many practitioners are still unfamiliar with its benefits for improving the safety, design, and operation of transportation systems. As the transportation community continues to work toward a data-driven approach to zero traffic fatalities and serious injuries, it is necessary to promote widespread use and to better understand the benefits of the HFG. Understanding how road users interact with the roadway environment can provide significant insights to contribute to traffic safety and the overall reduction of fatalities and serious injuries. Furthermore, it is important to acknowledge that self-enforcing/self-explaining roads need to be created within the Safe System Approach (SSA). To achieve this goal, greater use and integration of the vital human factor knowledge in the HFG will be required. Research is needed to bridge the gap by developing an implementation plan and supporting documents to increase the use of the HFG in transportation projects, programs, and practices. The research should identify additional needs for the successful integration of the HFG into the decision-making processes of transportation agencies. The objective of this research is to develop an implementation plan for transportation practitioners to support the incorporation of the HFG into projects, programs, practices, and decision-making processes within transportation agencies. The implementation plan shall include: An application handbook focusing on safety, design, and operation practices, policies, and programs for integrating the HFG into the day-to-day responsibilities of departments of transportation (DOTs). The application handbook shall include references, real-world case studies, best practices, recommendations, and additional material providing resource needs, benefits, challenges, and other factors to consider when implementing the HFG, and A communication and outreach plan focusing on how to promote the benefits of the HFG to potential audiences, including peers, upper management, other stakeholders, and the general public.


  • English


  • Status: Proposed
  • Funding: $450000
  • Contract Numbers:

    Project 20-130

  • Sponsor Organizations:

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001

    American Association of State Highway and Transportation Officials (AASHTO)

    444 North Capitol Street, NW
    Washington, DC  United States  20001

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Zhao, Yi

  • Start Date: 20240513
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01889422
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-130
  • Files: TRB, RIP
  • Created Date: Jul 31 2023 4:26PM