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Shsp INTERSECTION EMPHASIS AREA

Shsp INTERSECTION EMPHASIS AREA. Emphasis Area Definition. The term intersection crash is defined as a crash which occurs just before, just after or inside the limits where two or more highways join or cross. Emphasis Area Goals.

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Shsp INTERSECTION EMPHASIS AREA

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  1. Shsp INTERSECTION EMPHASIS AREA

  2. Emphasis Area Definition • The term intersection crash is defined as a crash which occurs just before, just after or inside the limits where two or more highways join or cross.

  3. Emphasis Area Goals • To reduce the number of annual roadway intersection fatalities by 10 per year by December 31, 2014 • To reduce the number of annual roadway intersection crashes involving incapacitating injuries by 100 per year by December 31, 2014

  4. Intersection Emphasis Area Objectives • To implement cost-effective countermeasures at acceptable deployment levels to achieve the planned reduction in intersection fatalities and incapacitating injury crashes • To advance new strategies and concepts that support reductions in intersection fatalities and incapacitating injuries • Program projects from current year Intersection Emphasis List

  5. Implement Flashing Yellow Arrow where applicable CMF – 0.806 (CMFs for Changing Left Turn Phasing Paper 12-2521)

  6. Implement retroreflective backplates CMF = 0.85 (CMF Clearinghouse)

  7. Implement High Friction Surface on applicable intersection approaches where applicable CMF ~ 78% for rear-end, wet road crashes (CMF Clearinghouse)

  8. Improve management of access near signalized/unsignalized intersections

  9. Improve management of access near signalized/unsignalized intersections

  10. Intersection Re-alignment

  11. Local Engineering Strategies?

  12. Develop standard signs and markings layout to be used by field personnel

  13. Implement use of supplemental signal heads where applicable

  14. Implement use of supplemental signal heads where applicable

  15. Signal Head visibility

  16. Signal Head Visibility

  17. Provide Dashed Markings (Extended Left Edgelines) for Major-Road Continuity Across the Median Opening at Divided Highway Intersections

  18. Guide motorists more effectively through complex intersections

  19. Guide motorists more effectively through complex intersections

  20. Innovative Signs and Markings to assist drivers in judging available gaps

  21. Before-Intersection Signing

  22. After-Intersection Signing

  23. Clearance Intervals

  24. Clearance Intervals

  25. Clearance Intervals

  26. Speaking of clearance intervals…….. • Check side street delay • Check min. green time • Check gap • Check LTT • Uploading/Downloading Timing • Check Pedestrian Timing

  27. Signal Inspection

  28. Resources • Signal Timing Manual - http://ops.fhwa.dot.gov/arterial_mgmt/tstmanual.htm • Signalized Intersections: Informational Guide - http://www.fhwa.dot.gov/publications/research/safety/04091/index.cfm • ITE Handbook • KYTC Traffic Operations Guidance Manual • NCHRP Report 731

  29. Questions?

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