Assisting Handicapped Pedestrians Through Work Zones: Meeting the ADA Requirements

Transportation Operations Group

TransportationInstitute

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? Unexpected closure on “normal” route Non-detectable route markings/delineation Lack of barriers Signs within a pathway

3/11/2009Accessible Design for the Blind 5

Free of hazardous protruding objects?

3/11/2009Accessible Design for the Blind 7

Route information in usable formats?

Information Formats

Barrier and/or Audible information to provide alternate route

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.”

Audible Information Study

Sponsored by TxDOT Evaluation of information

components Message Types

› Alternate Route› Warning

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

Driveways Influence Navigation Ability Street Names Not Critical Path Details are Reassuring

Recommendations (con’t)

Barrier Information Detectable pathway edge Detectable channelizing devices

W heream I?

Not a good start…

Mobility Impaired

What can cause problems? Inconsistent or unpassable surfaces No accessible route at closure Disconnect in accessibility Path width

Wide enough for passage?

Improvements

Following slides show some improved examples› Ramps› Accessible paths

Another view

Conclusions Visually Impaired

› “Equivalent to Visual Signage” Barrier Audible

Mobility Impaired› Continuity

Access Surfaces

Not an after thought!

Resources and Information MUTCD Part 6 Draft Public Rights-of-Way Accessibility

Guidelines › US Access Board Technical Assistance at (800) 872-2253 or row@access-board.gov

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

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 b-ullman@tamu.edu

Gerald (Jerry) Ullman g-ullman@tamu.edu

Assisting Handicapped Pedestrians Through Work Zones: Meeting the ADA Requirements

Documents

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· Web viewJAIN ZOROASTRIAN OTHER TOTAL BOYS--8-----08 GIRLS--0-----00 TOTAL 08 HANDICAPPED ORTHOPEADIC HANDICAPPED VISUAL HANDICAPPED HEARING HANDICAPPED AUTISTIC CHILDREN TOTAL