ADA Ramp Texture ... Painful.
ADA Ramp Texture ... Painful.
(OP)
See also thread163-39768: Texture of ADA Ramps
I guess it's all settled now, but I'd like to strangle the bureaucrat who sat at a desk and dreamed up the truncated dome 'detectable warning' for visually handicapped people.
My point is that the domes are easily detectable to anyone with a healing bone, by means of the jarring and resultant pain that accrues from traveling over the damn domes in a typical wheelchair.
As happened to me many times over the course of a month last year.
The dome dimensions and spacing seem optimized to make steering between the bumps impossible. Indeed, steering at all is impossible while also attempting to exert enough force to lever one's wheels over the damn multiple speed bumps.
I.e., the domes are optimally designed to completely stop passage of a self-propelled wheelchair, and to exert great pain on the occupant of a typical chair powered by other means.
To whom would I complain, and request that development efforts _and_ _testing_ be resumed?
I guess it's all settled now, but I'd like to strangle the bureaucrat who sat at a desk and dreamed up the truncated dome 'detectable warning' for visually handicapped people.
My point is that the domes are easily detectable to anyone with a healing bone, by means of the jarring and resultant pain that accrues from traveling over the damn domes in a typical wheelchair.
As happened to me many times over the course of a month last year.
The dome dimensions and spacing seem optimized to make steering between the bumps impossible. Indeed, steering at all is impossible while also attempting to exert enough force to lever one's wheels over the damn multiple speed bumps.
I.e., the domes are optimally designed to completely stop passage of a self-propelled wheelchair, and to exert great pain on the occupant of a typical chair powered by other means.
To whom would I complain, and request that development efforts _and_ _testing_ be resumed?
Mike Halloran
Pembroke Pines, FL, USA





RE: ADA Ramp Texture ... Painful.
RE: ADA Ramp Texture ... Painful.
RE: ADA Ramp Texture ... Painful.
According to the Guidance document for the 2010 standards,
{
Detectable Warnings. Detectable warnings
provide a distinctively textured surface of
truncated domes. The 1991 Standards at
sections 4.1.3(15), 4.7.7, 4.29.2, 4.29.5,
4.29.6, and 10.3.1(8) require detectable
warnings at curb ramps, hazardous vehicular
areas, reflecting pools, and transit platform
edges. The 2010 Standards at sections
218, 810.5, 705.1, and 705.2 only require
detectable warnings at transit platform edges.
The technical specifications for the diameter
and spacing of the truncated domes have
also been changed. The 2010 Standards
also delete the requirement for the material
used to contrast in resiliency or sound-on-
cane contact from adjoining walking surfaces
at interior locations.
The 2010 Standards apply to detectable
warnings on developed sites. They do not
apply to the public right-of-way. Scoping
for detectable warnings at all locations
other than transit platform edges has
been eliminated from the 2010 Standards.
However, because detectable warnings
have been shown to significantly benefit
individuals with disabilities at transit platform
edges, the 2010 Standards provide scoping
and technical requirements for detectable
warnings at transit platform edges.
}
The accursed bumps are now only required on the edges of transit platforms, as the document claims a significant benefit there. I do not understand the benefit myself, as the damn bumps constitute a tripping hazard, and the last place I'd want a tripping hazard is on the edge of a train/subway/bus/transit platform.
Now we need to find the accursed bureaucrats who were responsible for the original requirement and put them to work removing all the extant bumps that are no longer required. Manually. At their own expense.
Thanks again for the help.
Mike Halloran
Pembroke Pines, FL, USA
RE: ADA Ramp Texture ... Painful.
The landings on existing curb ramps are not truncated domes; they're pretty much full domes, so maybe you're referring to those?
TTFN

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RE: ADA Ramp Texture ... Painful.
The red bricks with truncated half-domes are nearly as bad as the near-full domes, from the perspective of a wheelchair.
Mike Halloran
Pembroke Pines, FL, USA
RE: ADA Ramp Texture ... Painful.
The truncated dome specification is unchanged from the 1991 ADA Design Guidelines:
TTFN

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RE: ADA Ramp Texture ... Painful.
RE: ADA Ramp Texture ... Painful.
RE: ADA Ramp Texture ... Painful.
RE: ADA Ramp Texture ... Painful.
http://tinyurl.com/kpvqhcy
RE: ADA Ramp Texture ... Painful.
The chance of getting any Federal agency to _stop_ demanding something is approximately zilch.
Mike Halloran
Pembroke Pines, FL, USA