6F.01 – Types of Devices - PowerPoint PPT Presentation

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6F.01 – Types of Devices

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  1. 6F.01 – Types of Devices Support: FHWA policy that work zone devices meet NCHRP Report 350

  2. Section 6F.02 General Characteristics of Signs New table format, “Table 6F-1 Sizes of Temporary Traffic Control Signs” showing the sizes of temporary traffic control warning signs is added

  3. Section 6F.03Sign Placement Support: “If alterations are made to specific traffic control device supports that have been successfully crash tested in accordance with NCHRP Report 350, the altered supports might not be considered to be crashworthy.”

  4. Section 6F.14 Special Regulatory Signs Support: signs to enhance speed enforcement

  5. Section 6F.15 Warning Sign Function, Design and Application Exit and Detour signs included in new Figure 6F-5

  6. Section 6F.15 Warning Sign Function, Design and Application Speed Reduction Signs design changed from Regulatory to Warning. Sign sizes removed from Figure

  7. Section 6F.40TURN OFF 2-WAY RADIO AND CELL PHONE Sign (W22-2) CELL added to sign message

  8. Section 6F.42 Shoulder Signs (W8-4, W8-9, W8-9a) Option: Shoulder drop-offs < 75mm (3”) Guidance: Shoulder drop-offs > 75 mm (3 in)

  9. Section 6F.45Double Reverse Curve Signs (W24 Series) Standard - # of lanes illustrated = # of thru lanes available

  10. 6F.47Special Warning signs Option: may be used based on engineering judgment Guidance: conform with color, shape, alphabet and series general requirements

  11. Section 6F.48 Advisory Speed Plaque (W13-1) Option – metric plaque Standard – only used with Warning signs

  12. Section 6F.52END ROAD WORK Sign (G20-2) Guidance: place near end of termination area

  13. Section 6F.53Detour Signs and Markers (M4-8, M4-8a, M4-8b, M4-9, M4-9a, M4-9b, M4-9c, and M4-10) Option: Fluorescent pink for Incident management

  14. Section 6F.55Portable Changeable Message Signs Guidance: 250mm/10in min 450mm/18in min

  15. Section 6F.55Portable Changeable Message Signs Guidance 3 Seconds Min per Phase

  16. Section 6F.55Portable Changeable Message Signs Standard 5 ft Rural, 7 ft Urban to bottom of PCMS

  17. Section 6F.56Arrow Panels Guidance: Lane closure for: multilane roadways, high speed, limited sight distance, unexpected conditions . Chevron Mode Added

  18. Section 6F.56Arrow Panels Guidance: Arrow panel at start of taper

  19. Section 6F.56Arrow Panels Used to: Close lanes –OK Shift Traffic- NO

  20. Figure 6F.58Channelizing Devices Figure 6F-7 Lumber barricades have not passed NCHRP 350 crashworthiness testing.

  21. Section 6F.59Cones Standard added on cones greater than 36” in height Minimum of 4 retroreflective bands Phase-in target compliance date 5 years

  22. Section 6F.63Type I, II, or III Barricades 2nd Guidance paragraph replacing Standard Ballast shall not protrude into Pedestrian Path

  23. Section 6F.66Longitudinal Channelizing Barricades Guidance: should conform to the general characteristics established for the devices described in Chapter 6F re: - size - color - stripe pattern - retroreflectivity - placement.

  24. Section 6F.67Other Channelizing Devices. New Section added • Optional device • Guidance: conform to other Sections in Chapter 6F re: • Size • Color • Stripe Pattern • Retroreflectivity • Placement

  25. Section 6F.68Detectable Edging for Pedestrians New Section added: Guidance: • Protrude min. 150 mm (6 in) above surface at top • Bottom of edging max. 62 mm (2.5 in) above surface • Continuous except gaps for turning or crossing

  26. Section 6F.69Temporary Raised Islands Standard---Temp. Raised Islands at Pedestrian Crossings: Opening or shortened to provide at least 1500 mm (60 in) wide ped pathway

  27. Section 6F.70Opposing Traffic Lane Divider Standard: DON’T placed across PEDESTRIAN CROSSINGS

  28. Section 6F.72Temporary Pavement Markings Option: Half-cycle lengths w/ min. 0.6 m (2 ft) stripes may be used on roadways w/ severe curvature for centerlines in passing zones and for lane lines. For temporary situations of 3 calendar days or less, for a 2- or 3-lane road, no-passing zones may be identified by: Guidance: if used, place as per Sections 2B.29, 2B.30, 2C.35

  29. Section 6F.75Lighting Devices Guidance: Max. spacing same as channelization devices

  30. Sections 6F.75Lighting Devices Option---lights on maintenance vehicles for daylight maintenance operations

  31. Section 6F.76 Floodlights Support: General work: 50 lux (5 ft-candles) Precision work: 216 lux (20 ft-candles)

  32. Section 6F.76Floodlights Standard Lighting Flagger Stations @ night No Disabling Glare for Workers / Road Users

  33. Section 6F.78Warning Lights Type D 360-degree Warning Lights

  34. Section 6F.80 Temporary Traffic Control Signals Guidance---Use Engineering Judgment re: need for Ped signals or APS along Ped detour

  35. Section 6F.82 Crash Cushions Standard: Damaged crash cushions shall be promptly repaired or replaced.

  36. Section 6F.84Rumble Strips Guidance---transverse rumble strips on roadway: • Not through ped crossings or on bike routes • Min. 1.2 m (4 ft) clear path at edge of roadway used by bikes 4’