Requirements in 4.4 are based on standard cane techniques used by people with vision impairments. There are two principal techniques: the touch technique and the diagonal technique....
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Protruding Objects [4.4]
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Wall-Mounted Objects
Proper cane and service animal techniques allow people to walk along a corridor or path without bumping into walls....
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Common Questions (Protruding Objects)
Common Questions
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Location Above Detectable Elements
Objects located above elements that are within can sweep can protrude 4” maximum from the leading edge of such elements provided that any required reach or clear floor space is not...
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A4.4.1 GENERAL
The two principal cane techniques are the touch technique, where the cane arcs from side to side and touches points outside both shoulders; and the diagonal technique, where the cane is...
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A4.4.1 General
The two principal cane techniques are the touch technique, where the cane arcs from side to side and touches points outside both shoulders; and the diagonal technique, where the cane is...
- NFB: Free White Cane Program
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Care and Feeding of the Long White Cane: Instructions in Cane Travel for Blind People by Thomas Bickford
For information on cane travel, Thomas Bickford has written a guide for those who are unsure about how to use a cane....
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Vertical Clearance [§307.4]
Barriers must have leading edges no higher than 27” so that they are within cane sweep. Fixed planters, benches, and other elements can be used instead of guardrails....
- National Federation of the Blind - Free White Cane Program
- How Blind People Use a White Cane Video with Tommy Edison
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11B-705.1.1.4 Resiliency
Detectable warning surfaces shall differ from adjoining surfaces in resiliency or sound-on-cane contact....
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II. Tips and Techniques
[See subsections ...]
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Measuring Techniques
Measuring Techniques The Body Size Descriptors These measurements serve as basic population descriptors and are applied in the design of workspaces and the physical environment, as...
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11B-308.1.1 Electrical switches
Controls and switches intended to be used by the occupant of a room or area to control lighting and receptacle outlets, appliances or cooling, heating and ventilating equipment,...
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11B-308.1.2 Electrical receptacle outlets
Electrical receptacle outlets on branch circuits of 30 amperes or less and communication system receptacles shall comply with Section 11B-308 except the low reach shall be measured...
- Accessible Pittsburgh: White Cane Day
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Protrusion Limits: ADA Standard Section 307.2
Section 307.2 covers the current ADA Standards for protrusion limits.
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11B-307.2 Protrusion limits
When a cane is used and the element is in the detectable range, it gives a person sufficient time to detect the element with the cane before there is body contact....
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404.1 General
This provision applies to conversion techniques, such as encoding, signal compression, and format transformation....
- Halsey Taylor Cane Touch Apron for HAC ADA Series
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Very interesting insight
This short video uses humor to explain how a person is blind may interact with the street-side walking environment. 'Video game' points for successes and deductions for problems add...
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Very interesting insight
I agree, Dean. I've used it in training sessions - it's a great way to communicate the idea of what is required and necessary, no matter the location or the language.