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Home > Intersection Safety > Resources
Low-Cost Safety Enhancements for Stop-Controlled and Signalized Intersections
Downloadable Version
PDF [905 KB]
Office of Safety
Federal Highway Administration
May 2009
Table of Contents
Introduction Stop-Controlled Intersections
Signalized Intersections
Lighting at Unlit or Poorly Lit Intersections
High-Frictions Surfaces
Speed Reduction Countermeasures on High Speed Approaches to Intersections
Multiple Countermeasures Applied at the Same Intersection The Systematic Approach – Concept Systematic Deployment – The Process Summary
List of Tables
Table 1: Crash Reduction Factors, Typical Crash Thresholds, Additional Application Factors, and Estimated Implementation Cost Ranges for Countermeasures at Stop-Controlled Intersections
Table 2: Crash Reduction Factors, Typical Crash Thresholds, Additional Application Factors, and Estimated Implementation Cost Ranges for Countermeasures at J-Turn Stop-Controlled Intersections
Table 3: Crash Reduction Factors, Typical Crash Thresholds, Additional Application Factors, and Estimated Implementation Cost Ranges for Countermeasures at Signalized Intersections
Table 4: Crash Reduction Factors, Typical Crash Thresholds, Additional Application Factors, and Estimated Implementation Cost Ranges for Lighting Countermeasures at Unlit or Poorly Lit Intersections
Table 5: Crash Reduction Factors, Typical Crash Thresholds, Additional Application Factors, and Estimated Implementation Cost Ranges for Skid Resistance Countermeasures at Intersections with High Rates of Low-Friction Crashes
Table 6: Crash Reduction Factors, Typical Crash Thresholds, Additional Application Factors, and Estimated Implementation Cost Ranges for Countermeasures at Stop-Controlled Intersections with High-Speed Approaches
Table 7: Example of a Typical State Distribution of Crashes at Rural State Stop-Controlled Intersections (5 Years Crash Data)
Table 8: Example of Typical State Crash Severity for Various Intersection Types
List of Figures
Figure 1: Examples of Basic Low-Cost Countermeasures for Stop-Controlled Intersections – Double Up Oversize Warning Signs, Double STOP Signs, Traffic Island on Stop Approach (if feasible), Street Name Signs, Stop Bars, and Double Warning Arrow at the Stem of T-Intersections
Figure 2: Turn Restrictions at Multi-Lane Highways
Figure 3: Example Intersection with Basic 12 inch Lens, Back Plates and a Signal Head per Lane
Figure 4: New Design for Intersection Lighting Layout
Figure 5: New Design for Wide Roadway Intersection Lighting Layout
Figure 6: Lane Narrowing Using Rumble Strips
Figure 7: Intersection Categories for Low-Cost Countermeasure Consideration
For More Information:
Ed Rice
Intersection Safety Team Leader
FHWA Office of Safety
202.366.9064
ed.rice@dot.gov
U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Ave., SE
Washington, DC 20590
Toll-Free "Help Line" 866-367-7487
FHWA-SA-09-020
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Program Contact
Ed Rice
ed.rice@dot.gov
202-366-9064
What's New
Presentation: Intersection Safety
Example Intersection Safety Implementation Plan
Intersection Safety Implementation Plan Workshop
Example Data Analysis Package and Straw Man Outline
Intersection Safety Implementation Plan Process
Report on the National Agenda for Intersection Safety
Intersection Safety Needs Identification Report
Highlights
FHWA Guidance Memo Contains Provisions to Improve Intersection Safety
Presentation: Safety at Unsignalized Intersections
Presentation: Safety Aspects of Roundabouts
Presentation: Unsignalized Intersection Safety Strategies (NCHRP Report 500, Vol. 5)
Presentation: Signalized Intersection Safety Strategies (NCHRP Report 500, Vol. 12)
Presentation: Safety at Signalized Intersections
Presentation: Red Light Running
Strategic Intersection Safety Program Guide
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