Example Intersection Safety Implementation Plan

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FHWA Office of Safety logo reads: 'Safe roads for a safer future – Investment in roadway safety saves lives.'

July 2009

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Table of Contents

Executive Summary

Background

The Intersection Safety Goal

Key First Steps

Implementation

  1. Sign and Marking Improvements – State Stop-Controlled Intersections

  2. J-Turn Modifications on High-Speed Divided Arterials – State Stop-Controlled Intersections

  3. Basic Set of Sign and Marking Improvements – Local Stop-Controlled Intersections

  4. Signal and Sign Improvements – State Signalized Intersections

  5. Signal and Sign Improvements – Local Signalized Intersections

  6. New or Upgraded Lighting – State Rural Intersections

  7. High-Friction Surface – State Intersections

  8. Enforcement-Assisted Lights

  9. Corridor 3E Improvements on High-Speed Arterials with Very High Frequencies of Severe Intersection Crashes

  10. Municipal-Wide 3E Improvements in Municipalities with High Frequencies of Severe Intersection Crashes

  11. Roundabouts

Production Performance Measures

Performance Standards – Program Effectiveness in Reducing Targeted Crashes

Summary

Appendix A. Intersections with Multiple Countermeasure Considerations

List of Tables

Table 1. State Intersection Fatalities

Table 2. Intersection Crashes, Fatalities, and Incapacitating Injuries for Signalized Intersections – 2003-2008

Table 3. Intersection Crashes, Fatalities, and Incapacitating Injuries, for Stop-Controlled Intersections – 2003-2008

Table 4. Summary of Intersection Crashes, Fatalities, and Incapacitating Injuries – 2003-2008

Table 5. Countermeasures, Costs, Deployment Levels, and Estimated Fatality Reductions

Table 6. Intersection Safety Countermeasures by Approach Type

Table 7. Basic Set of Sign and Marking Improvements – State Stop-Controlled Intersections

Table 8. Flashing Beacons – State Stop-Controlled Intersections

Table 9. Key Implementation Steps for Sign and Marking Improvements – State Stop-Controlled Intersections

Table 10. J-Turn Modifications on High-Speed Divided Arterials – State, Rural, Stop-Controlled Intersections

Table 11. Key Implementation Steps for J-Turn Modifications on High-Speed Divided Arterials – State Stop-Controlled Intersections

Table 12. Basic Set of Sign and Marking Improvements – Local Stop-Controlled Intersections

Table 13. Key Implementation Steps for Basic Set of Sign and Marking Improvements – Local Stop-Controlled Intersections

Table 14. Basic Set of Signal and Sign Improvements – State Signalized Intersections

Table 15. Change of Permitted and Protected Left-Turn Phase to Protected Only – State Signalized Intersections

Table 16. Advance Detection Control Systems – Isolated High-Speed State, Rural, Signalized Intersections

Table 17. Key Implementation Steps for Signal and Sign Improvements – State Signalized Intersections

Table 18. Key Implementation Steps for Advance Detection Control Systems Pilot – Isolated High-Speed State, Rural, Signalized Intersections

Table 19. Basic Set of Signal and Sign Improvements – Local Signalized Intersections

Table 20. Change of Permitted and Protected Left-Turn Phase to Protected Only – Local Signalized Intersections

Table 21. Key Implementation Steps for Signal and Sign Improvements - Local Signalized Intersections

Table 22. New or Upgraded Lighting – State Rural Intersections

Table 23. Key Implementation Steps for New or Upgraded Lighting – State Rural Intersections

Table 24. High-Friction Surface – State Intersections, 45 mph or Greater Speed Limit

Table 25. Key Implementation Steps for High-Friction Surface – State Intersections

Table 26. Enforcement-Assisted Lights – Candidate Cities

Table 27. Key Implementation Steps for Enforcement-Assisted Lights

Table 28. Corridor 3E Improvements on High-Speed Arterials with Very High Frequencies of Severe Intersection Crashes – Candidate Locations

Table 29. Key Implementation Steps for Corridor 3E Improvements on High-Speed Arterials with Very High Frequencies of Severe Intersection Crashes

Table 30. Municipal-Wide 3E Improvements in Municipalities with High Frequencies of Severe Intersection Crashes – Candidate Cities with the Highest Intersection Fatalities and Crashes

Table 31. Key Implementation Steps for Area-Wide City 3E Improvements

Table 32. Roundabouts – Threshold Levels for Determining Candidate Intersections

Table 33. Key Implementation Steps for Roundabouts

Table 34. Production Performance Measures

Table 35. Performance Measures

Table 36. Summary of Countermeasures, Deployment Levels, Costs, and Fatality Reductions

Table 37. Example – State Rural Stop-Controlled Intersections with Multiple Countermeasure Considerations

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. New Design for Intersection Lighting Layout (Single and Multi-Lane Approaches)

FHWA logo.
U.S. Department of Transportation
Federal Highway Administration
Office of Safety
1200 New Jersey Ave., SE
Washington, DC 20590

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