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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
Jeffrey Shaw
jeffrey.shaw@dot.gov
708-283-3524
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