6F.01 – Types of Devices

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6F.01 – Types of Devices Support: FHWA policy that work zone devices meet NCHRP Report 350 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
Transcript
6F.01 – Types of DevicesSupport:FHWA policy that work zone devices meet NCHRP Report 350Section 6F.02 General Characteristics of SignsNew table format, “Table 6F-1 Sizes of Temporary Traffic Control Signs” showing the sizes of temporary traffic control warning signs is addedSection 6F.03Sign PlacementSupport:“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.”Section 6F.14 Special Regulatory SignsSupport:signs to enhance speed enforcementSection 6F.15 Warning Sign Function, Design and ApplicationExit and Detour signs included in new Figure 6F-5Section 6F.15 Warning Sign Function, Design and ApplicationSpeed Reduction Signs design changed from Regulatory to Warning. Sign sizes removed from Figure Section 6F.40TURN OFF 2-WAY RADIO AND CELL PHONE Sign (W22-2) CELL added to sign message 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)Section 6F.45Double Reverse Curve Signs (W24 Series)Standard - # of lanes illustrated = # of thru lanes available6F.47Special Warning signsOption: may be used based on engineering judgment Guidance: conform with color, shape, alphabet and series general requirementsSection 6F.48 Advisory Speed Plaque (W13-1)Option – metric plaqueStandard – only used with Warning signsSection 6F.52END ROAD WORK Sign (G20-2)Guidance: place near end of termination areaSection 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 Section 6F.55Portable Changeable Message SignsGuidance:250mm/10in min450mm/18in minSection 6F.55Portable Changeable Message SignsGuidance3 Seconds Min per Phase Section 6F.55Portable Changeable Message SignsStandard5 ft Rural, 7 ft Urban to bottom of PCMSSection 6F.56Arrow PanelsGuidance:Lane closure for: multilane roadways, high speed, limited sight distance, unexpected conditions .Chevron Mode AddedSection 6F.56Arrow PanelsGuidance:Arrow panel at start of taperSection 6F.56Arrow PanelsUsed to:Close lanes –OKShift Traffic-NOFigure 6F.58Channelizing DevicesFigure 6F-7Lumber barricades have not passed NCHRP 350 crashworthiness testing.Section 6F.59ConesStandard added on cones greater than 36” in height Minimum of 4 retroreflective bandsPhase-in target compliance date 5 yearsSection 6F.63Type I, II, or III Barricades2nd Guidance paragraph replacing StandardBallast shall not protrude into Pedestrian PathSection 6F.66Longitudinal Channelizing BarricadesGuidance: should conform to the general characteristics established for the devices described in Chapter 6F re: - size - color - stripe pattern - retroreflectivity - placement.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
  • Section 6F.68Detectable Edging for PedestriansNew 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
  • Section 6F.69Temporary Raised IslandsStandard---Temp. Raised Islands at Pedestrian Crossings:Opening or shortened to provide at least 1500 mm (60 in) wide ped pathwaySection 6F.70Opposing Traffic Lane DividerStandard:DON’T placed across PEDESTRIAN CROSSINGSSection 6F.72Temporary Pavement MarkingsOption: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.35Section 6F.75Lighting DevicesGuidance:Max. spacing same as channelization devicesSections 6F.75Lighting DevicesOption---lights on maintenance vehicles for daylight maintenance operationsSection 6F.76 FloodlightsSupport:General work: 50 lux (5 ft-candles)Precision work: 216 lux (20 ft-candles)Section 6F.76Floodlights Standard Lighting Flagger Stations @ nightNo Disabling Glare for Workers / Road UsersSection 6F.78Warning LightsType D 360-degree Warning LightsSection 6F.80 Temporary Traffic Control SignalsGuidance---Use Engineering Judgment re: need for Ped signals or APS along Ped detourSection 6F.82 Crash CushionsStandard:Damaged crash cushions shall be promptly repaired or replaced.Section 6F.84Rumble StripsGuidance---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’
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