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Draft Temporary Pedestrian Access Route (TPAR) Guidance

Draft Temporary Pedestrian Access Route (TPAR) Guidance. Ken E. Johnson, PE Mn/DOT Office of Traffic, Safety and Technology ken.johnson@state.mn.us 651-234-7386. Draft TPAR Guidance. Located in your folder. Alternatively:

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Draft Temporary Pedestrian Access Route (TPAR) Guidance

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  1. Draft Temporary Pedestrian Access Route (TPAR) Guidance Ken E. Johnson, PE Mn/DOT Office of Traffic, Safety and Technology ken.johnson@state.mn.us 651-234-7386

  2. Draft TPAR Guidance Located in your folder Alternatively: http://www.dot.state.mn.us/trafficeng/workzone/ADA/DRAFT-TPARGuidelines.pdf

  3. What’s in the TPAR Guidance? Mn/DOT ADA Implementation Plan - PROWAG is primary guidance for accessible facility design on Mn/DOT projects

  4. PROWAG/ADAAG Standards

  5. 2009 Federal MUTCD • Published by US DOT, FHWA • Contains standards for all traffic control devices on all public roads • All states must adopt • Goes through Federal rule-making therefore has the weight of law • All roads open to public travel must comply

  6. 2009 Federal MUTCD • Chapter 6D – Pedestrian and Worker Safety • If the Temporary Traffic Control (TTC) zone affects the movement of pedestrians, adequate pedestrian access and walkways shall be provided. If the TTC zone affects an accessible and detectable pedestrian facility, the accessibility and detectabilityshall be maintained along the alternate pedestrian route.

  7. Draft TPAR Guidance Identifies and compiles various standards for components within an “ADA compliant” facility.

  8. When should the TPAR Guidance be used? Length of impact? Size of impact? Unattended Vs. Attended

  9. TPAR Devices • Could be constructed on site • Approved Products List • Need to develop criteria to fairly evaluate • TPAR Devices possible categories • Temporary Walkway Surface • Detectible Edging • Handrail • Temporary Ramp Panels • Detectible Warning • Audible Message Device

  10. Non-TPAR Devices • Approved Products List • Pedestrian Channelizing Devices Possible Categories • Guiderail • Pedestrian Signs • Longitudinal Channelizer

  11. Approved Products List • Feedback on devices in demonstration area • Today’s audience • Focus groups • Trainers and Pedestrians with Disabilities • Help Mn/DOT develop criteria to evaluate devices fairly

  12. TPAR Walkways and Ramp Sections • May consist of a combination of: • Existing surfaces • Improved surfaces • Or portable devices covering existing surfaces • Remain free of tripping hazards or other objects • Criteria in guidance document • Surface, transition joints, width, passing spaces, grades, ramps, landings, turning areas, detectible edging, and edge protection.

  13. TPAR Handrail vs. non-TPAR Guiderail • Handrails required for steep grades along walkways • Provide required support • Guiderails provide visual and tactile guidance to all pedestrians • Do not provide support features of a handrail • Criteria in guidance document

  14. Pedestrian Channelizers • May or may not be TPAR • Detectible Edging • Temporary Traffic Control (TTC) Barricades • Longitudinal Channelizers • Handrails • Guiderails • Temporary Traffic Barriers • Pavement Markings

  15. Other TPAR Devices • Curb ramps • Criteria summarized into document • Grades, landings, detectable edging, side slopes, gutter water flow, detectable warnings, and handrails. • Detectable warnings • Informational devices • Audible message devices • One manufacturer that we’re aware of • Encourage development in this area

  16. TPAR Walkway, Curb Ramp and Detectible Warning Example

  17. TPAR Clear Area and Intrusion Protection • Longitudinal barrier may be needed to separate pedestrian and vehicular traffic • TPAR free of intruding objects (as in diagram)

  18. TPAR Clear Area and Intrusion Protection

  19. Please answer questions in Section B: TPAR Design Guidance Questions???

  20. TPAR Curb Ramps • Should meet standards for TPAR Walkways • Grades: • 12:1 to 10:1 max slope for max 6” rise • 10:1 to 8:1 max slope for max 3” rise • Landings – minimum 48” clear, level area near top and bottom of ramp • Continue detectible edging if on approach to ramp

  21. TPAR Curb Ramps • Side slopes of ramp • 3:1 or flatter into existing gutter (except with detectable edging or edge protection) • 10:1 or flatter cut into upper walkway • Do not restrict gutter water flow • Detectable warnings: only leading into traffic area • Handrails not required unless: • Part of TPAR Walkway requiring handrails • Exceeds 6” rise and 72” length standards

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