Enhancing Work Zone and Mobility III 2015...Work Zone Safety and Mobility The needs and control of...
Transcript of Enhancing Work Zone and Mobility III 2015...Work Zone Safety and Mobility The needs and control of...
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Enhancing Work Zone Safety and Mobility
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Opportunities to Enhance Safety and Mobility in Work Zones
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Work Zone Safety and Mobility
The needs and control of all road users (motorists, bicyclists, motorcyclists, transits, trucks, and pedestrians) within the highway, or on private roads open to public travel through 4 E’s.
�Look at it from the road users perspective�Provide a clear and defined path�Reduce the number of decisions
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Review Basic Questions
Is the information provided to all road users standardized (or consistent) throughout the work zone(s) so that it meets their expectations?
•Has critical information been spread out through the approach and work area so that all road users are not overloaded at any given time?••Have information needs been met to allow them to navigate safely through the work zone?
•Are all hazards in the work zone identified so that they are visible, and therefore avoidable, all road users ?
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Nominal and Substantive Safety
Nominal Safety – Advance Warning Sign + Advisory Speed Plaque
1st Step 2nd Step
Advance Warning Sign + Advisory Speed + Chevrons = “Safer” = Substantive Safety
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Coordination with Local State AgenciesEnforcement – Education – Engineering – EMSSpeed ManagementPositive GuidanceTraffic Control DevicesRe‐positioning temporary Traffic Control DevicesSignal conspicuous and timingMarkings – Removal and NewPavement – Condition, Contrast, Uneven
Enhancements Opportunities
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Lane Assignments and ContinuityExits and EntrancesTransitionsBarriers and End TreatmentsLightingTransit StopsPedestrian AccommodationsWrong Way MovementsMaintenance of existing roadway –Lighting/ Vegetation/Traffic Control Device/RLR camerasProject Staging – Start and CompletionsOpening of Completed Sections
Enhancements Opportunities
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Involved in the development of MOTParticipant in Pre‐construction and periodic meetings: On‐going informal communicationsEnforcement and Project LiaisonsContract provisions to provide extra enforcement support:Lanes closuresChange over of traffic signalsSelective Enforcement scheduling
Coordination with Enforcement
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Emergency Response
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Investigation of CrashNotification of Project StaffAssess IssueMake Modifications as appropriateDocumentationIdentify Systematic District Wide issuesHave a Written Policy/Process
Work Zone Crashes
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Proactive Enhancements
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Proactive Enhancements
Lane DropsLast U‐Turnaround before bridgeReplacing or additional signing, RPMs, markings, delineations
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Nighttime Positive Guidance
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Plans and Notes are open to interpretationConesTubular MarkersBarrelsBarricades: type I, II, and IIIWhich is best for the conditions, who pays.
Channelizing Devices
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Temporary Traffic Control Devices
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Temporary Pavement Marking
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MillingGrindingWater BlastingOverlay
Pavement Marking Removal
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Checked WeeklyRe‐time as conditions changeUse of detection systems
Micro waveVideoLoops
Traffic Signals
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New When to open sidewalks and crossings
ExistingCrosswalks and sidewalks closingMust provide alternative crossing and walkways
Pedestrian Accommodations
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Pedestrian Accommodations
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Pedestrian Accommodations
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OperationsStopsUsersProvide information and accessibility (ADA)Provide more and realistic details in the MOT
Transit
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Overhead Guide SignsProper alignmentProper message
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Develop uniform process/policy for providing signing of business.
Business Signing
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Business Signing