Speed Modification Factors for Speed Management within the Safe System Approach

Safe speeds and safe roads are critical components in safety outcomes within the Safe System Approach and particularly in the context of developing self-enforcing and self-explaining roads. This research considers speed management in terms of speed reductions and potential reductions in injury severity based on current and future system operations to allow for an improved speed management understanding in terms of measurable safety outcomes. The research shall further the Federal Highway Administration's (FHWA’s) Safe System Approach for speed management by helping state departments of transportation (DOTs) and other transportation agencies understand the practices necessary to set and achieve safer speeds. In summary, the research shall focus on applications of speed management and the full scope of its application in planning, design, operations, and communication/public outreach. The objective of this research is to develop a guide with tools and case studies to assist in broad applications of speed management within the Safe System Approach.

• Record URL:
  • http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=5876
• Supplemental Notes:
  • Contract to a Performing Organization has not yet been awarded.

Language

• English

Project

• Status: Proposed
• Funding: $725,000.00
• Contract Numbers:

  Project 17-143

• 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:

  Barcena, Roberto

• Start Date: 20250526
• Expected Completion Date: 0
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Injury severity; Speed control; Speed limits; Traffic speed
• Identifier Terms: Safe System Approach
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 01956837
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 17-143
• Files: TRB, RIP
• Created Date: May 29 2025 1:17PM