Boost Your Business - Chapter 11 - Stairs
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Boost Your Business - Chapter 11 - Stairs
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Exterior Routes
routes coincides with general circulation paths. 11B-206.2.1 Exception 3 Clear width of walking surface. 11B-403.5.1 Contrasting...
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Exterior Routes
routes coincides with general circulation paths. 11B-206.2.1 Exception 3 Clear width of walking surface. 11B-403.5.1 Contrasting...
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Access Board: Informational and Directional Sign Requirements
This video is part of a longer animation produced by the U.S. Access Board. View the animation video in its entirety on the Access Board's website...
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2.8 Effects of Luminance Contrast on Visual Detection and Conspicuity of Detectable Warnings
Contrast was calculated for each combination of detectable warning and sidewalk using the following formula: Contrast = (R1 - R2) / R2 X 100% Where: R1 is the reflectance factor...
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11B-502.3.3 Marking
The area within the blue borderlines shall be marked with hatched lines a maximum of 36 inches (914 mm) on center in a color contrasting with that of the aisle surface, preferably blue or...
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Access Board: Signs
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Identification: ADA Standard Section 802.4.2
Consider identifying such seats with signs that contrast (light-on-dark or dark-on-light) and that are also photo luminescent....
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2.1 Participants’ Vision
Participants’ contrast sensitivity was tested with a Pelli-Robson Contrast Sensitivity chart....
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11B-503.3.3 Marking
The area within the borderlines shall be marked with hatched lines a maximum of 36 inches (914 mm) on center in a color contrasting with that of the aisle surface....
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Tread Surface: ADA Standard Section 504.4
Section 504.4 covers the current ADA Standards for the tread surfaces on stairways.
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Interpreting the Interactions
Now, if we ask: What is the actual distribution of contrast sensitivity in people who have visual acuity loss? Here you can see a normal contrast sensitivity is about 1.3....
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Web Accessibility 101: Using Adobe Edge Inspect
demonstrates the use of Adobe Edge Inspect for mobile accessibility testing, including how to install Edge Inspect, checking the Document Object Model (DOM) and testing for proper color contrast...
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Non-Tactile Signage
Non-Tactile Signage The legibility of printed characters is a function of the viewing distance, character height and proportion, font, and the color contrast between character and background...
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Panel 3: Impacts on Vision – Glare, Contrast, Color (Gregory Knoop, AIA, Moderator)
Note: Transcripts for this Panel were not available. These edited Proceedings are based on notes by JEW and TOS)
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Issue 5: Can a new chapter be written with a structure for PBS P100 that is performance based and does not disaggregate lighting design by professional disciplines (i.e., integrates subject matter in Chapters 2, 3, 5, and 6)?
Contrast and color contrast may have priority of illuminance. Prescriptive and performance subsections should be considered....
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Display Screens
background or dark characters on a light background” to “with a minimum luminosity-contrast-ratio of 3:1.”...
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2.9 Models to Predict Visual Detection and High Conspicuity Ratings
PS8 = 17* Ln(Contrast) + 20.3 + (7.3 if color is red or yellow)....
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Watermarks
Use a watermark that has high contrast with the text so that it does not interfere with the reading of the text....
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Signs
They must also meet specific requirements for mounting location, color contrast, and non-glare surface....
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Identification [4.3.11.5]
as directional signage at inaccessible exits and instructions on using the space, are subject to requirements for character proportion (4.30.2) and height (4.30.3) and sign finish and contrast...
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Appendix B: Overview of Federal Regulations and Guidance for Detectable Warnings
The appendix to the ADAAG (A4.29) recommends that detectable warnings contrast visually with adjoining surfaces: The material used to provide contrast should contrast by at least 70 percent...
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11B-812.7.2 Marking
The color of the borderlines, hatched lines, and letters shall contrast with that of the surface of the access aisle....
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Executive Summary
Although providing moderately high luminance contrast, these combinations were detected less often than would be predicted from their luminance contrast....
