Truncated domes in a detectable warning surface shall have a center-to-center spacing of 2.3 inches (58 mm) minimum and 2.4 inches (61 mm) maximum, and a base-to-base spacing of 0.65 inch...
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11B-705.1.1.2 Dome spacing
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11B-703.7.2.2 International Symbol of TTY
The International Symbol of TTY shall comply with Figure 11B-703.7.2.2....
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R208 Detectable Warning Surfaces (Section-by-Section Analysis)
R208 Detectable Warning Surfaces (Section-by-Section Analysis) Detectable warning surfaces consist of small truncated domes built in or applied to a walking surface that are detectable...
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11B-705.1.1.2 Dome spacing
Truncated domes in a detectable warning surface shall have a center-to-center spacing of 2.3 inches (58 mm) minimum and 2.4 inches (61 mm) maximum, and a base-to-base spacing of 0.65 inch...
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TTY Use
Some foreign carriers opposed TTY requirements on the grounds that TTY access is technically infeasible in many countries....
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11B-705.1.1.2 Dome spacing
Truncated domes in a detectable warning surface shall have a center-to-center spacing of 2.3 inches (58 mm) minimum and 2.4 inches (61 mm) maximum, and a base-to-base spacing of 0.65 inch...
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Scoping for Text Telephones (Preamble, Section-by-Section Analysis)
- Scoping for TDD's or text telephones was increased. One TDD or text telephone, for speech and hearing impaired persons, must be provided at locations with 4, rather than 6, pay...
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Floor Requirement: ADA Standard Section 217.4.2
Section 217.4.2 covers scoping requirements in the current ADA Standards for TTYs on the floor of public and private buildings.
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11B-217.4.2 Floor requirement
TTYs in public buildings shall be provided in accordance with Section 11B-217.4.2.1. TTYs in private buildings shall be provided in accordance with Section 11B-217.4.2.2....
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11B-247.1.2.1 Platform edges
Platform boarding edges shall have detectable warnings complying with Sections 11B-705.1.1 and 11B-705.1.2.1....
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11B-216.9.2 Directional signs
Directional signs indicating the location of the nearest public TTY shall be provided at all banks of public pay telephones not containing a public TTY....
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Platform Edges: ADA Standard Section 705.2
Detectable warning surfaces at platform boarding edges shall be 24 inches (610 mm) wide and shall extend the full length of the public use areas of the platform....
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11B-705.1.2.1 Platform edges
Detectable warning surfaces at platform boarding edges shall be 24 inches (610 mm) wide and shall extend the full length of the public use areas of the platform....
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Text Telephones (TTYs) (Advisory Guidance)
Text Telephones (TTYs) 20. A TTY also provides direct two-way typed conversations....
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F216.9.2 Directional Signs
Directional signs indicating the location of the nearest public TTY shall be provided at all banks of public pay telephones not containing a public TTY....
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216.9.2 Directional Signs
Directional signs indicating the location of the nearest public TTY shall be provided at all banks of public pay telephones not containing a public TTY....
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11B-216.9.2 Directional signs
Directional signs indicating the location of the nearest public TTY shall be provided at all banks of public pay telephones not containing a public TTY....
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11B-216.9.2 Directional signs
Directional signs indicating the location of the nearest public TTY shall be provided at all banks of public pay telephones not containing a public TTY....
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216.9.2 Directional Signs
Directional signs indicating the location of the nearest public TTY shall be provided at all banks of public pay telephones not containing a public TTY....
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Contrast
Detectable warnings are required to contrast visually from adjacent walking surfaces, either light-on dark or dark-on-light....
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11B-705.1.1.3.2
11B-705.1.1.3.2 Detectable warning surfaces shall provide a 70 percent minimum visual contrast with adjacent walking surfaces....
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11B-705.1.1.3.2
Detectable warning surfaces shall provide a 70 percent minimum visual contrast with adjacent walking surfaces....
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SafetyStepTD Powerbond Detectable Warning Mat Video
This is an instructional video on how to install the SafetyStepTD Powerbond Detectable Warning Mat. ...
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Costs to Provide Detectable Warning Surfaces on Curb Ramps (Section-by-Section Analysis)
Costs to Provide Detectable Warning Surfaces on Curb Ramps (Section-by-Section Analysis) Detectable warning surfaces are available in a variety of materials....