assisting handicapped pedestrians through work zones: meeting the ada requirements
DESCRIPTION
Assisting Handicapped Pedestrians Through Work Zones: Meeting the ADA Requirements. Brooke R. Ullman, P.E. Texas Transportation Institute. Pedestrians with disabilities. Mobility disabilities Visual disabilities. Visually Impaired Pedestrians. What can cause problems?. - PowerPoint PPT PresentationTRANSCRIPT
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Assisting Handicapped Pedestrians Through Work
Zones: Meeting the ADA Requirements
Brooke R. Ullman, P.E.Texas Transportation Institute
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Pedestrians with disabilities
Mobility disabilities Visual disabilities
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Transportation Operations Group
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Visually Impaired Pedestrians
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What can cause problems? Unexpected closure on “normal” route Non-detectable route markings/delineation Lack of barriers Signs within a pathway
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3/11/2009Accessible Design for the Blind 5
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Free of hazardous protruding objects?
3/11/2009Accessible Design for the Blind 7
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Route information in usable formats?
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Transportation Operations Group
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Information Formats
Barrier and/or Audible information to provide alternate route
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MUTCD Guidance MUTCD 6D.01
“The most desirable way to provide information to pedestrians with visual disabilities that is equivalent to visual signage for notification of sidewalk closures is a speech message provided by an audible information device.”
MUTCD 6F.13“An audible information device is needed when the
detectable barricade or barrier for an alternate channelized route is not continuous.”
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Audible Information Study
Sponsored by TxDOT Evaluation of information
components Message Types
› Alternate Route› Warning
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Audible Information Recommendations Clearly State Intended Path
› “Use Opposite Side of the Street”› “Sidewalk Is Open”› “In Street”
Use Blocks or Landmarks to Identify Travel Distance
Critical Elements› Initial Turning or Crossing Instruction› Distance to Follow Alternate Path
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Driveways Influence Navigation Ability Street Names Not Critical Path Details are Reassuring
Recommendations (con’t)
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Barrier Information Detectable pathway edge Detectable channelizing devices
W heream I?
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Not a good start…
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Mobility Impaired
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What can cause problems? Inconsistent or unpassable surfaces No accessible route at closure Disconnect in accessibility Path width
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Wide enough for passage?
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Improvements
Following slides show some improved examples› Ramps› Accessible paths
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Another view
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Conclusions Visually Impaired
› “Equivalent to Visual Signage” Barrier Audible
Mobility Impaired› Continuity
Access Surfaces
Not an after thought!
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Resources and Information MUTCD Part 6 Draft Public Rights-of-Way Accessibility
Guidelines › US Access Board Technical Assistance at (800) 872-2253 or [email protected]
TTI Research on Pedestrians in Work Zones› http://tti.tamu.edu/documents/0-5237-P1.pdf› http://tti.tamu.edu/documents/0-5237-1.pdf
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Questions / Discussion
Thanks to Lois Thibault, US Access Board, and Janet Barlow, Accessible Design for the Blind, for many of the photos used.
Brooke Ullman [email protected]
Gerald (Jerry) Ullman [email protected]