While the dynamic coefficient of friction during walking varies in a complex and non-uniform way, the static coefficient of friction, which can be measured in several ways, provides a close...
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I. Slip Resistant Surface—Aisles, Steps, Floor Areas Where People Walk, Floor Areas in Securement Locations, Lift Platforms, Ramps
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Technical Bulletin: Ground and Floor Surfaces
The landmark Americans with Disabilities Act (ADA), enacted on July 26, 1990, provides comprehensive civil rights protections to individuals with disabilities in the areas of...
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A4.5.1 General
While the dynamic coefficient of friction during walking varies in a complex and non-uniform way, the static coefficient of friction, which can be measured in several ways, provides a close...
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How is slip resistance measured?
Consider, for example, an icy surface with a negligible coefficient of friction....
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What values are recommended for ground and floor surfaces along an accessible route?
Correlating these values with a single static coefficient of friction (the relationship is complex and non-linear) is inexact and involves some approximation in order to facilitate simplified...
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Horizontal Alignment
This point is represented by the coefficient of friction used in the minimum design radius equations of AASHTO....
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What materials may satisfy ADAAG requirements?
If there is a choice between flooring materials otherwise suitable for a particular application, we recommend choosing the material with the higher coefficient of friction, particularly...
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Stopping Sight Distance
The distance required for a user to come to a complete stop, stopping sight distance, is a function of the user's perception and brake reaction time, initial speed, the coefficient of friction...
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Extent of Application: ADA Standard Section 202.3.2
Section 202.3.2 covers the extent of application of Section 202.3
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Calculation of Percentages: ADA Standard Section 104.2
Section 104.2 of the ADA Standards covers the most current information on the calculation of percentages in the ADA Standards.
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What is the minimum level of slip resistance required by the standards?
The standards require ground and floor surfaces to be slip resistant, but they do not specify a minimum level of slip resistance or coefficient of friction. ...
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Means of Egress: ADA Standard Section 216.4
Section 216.4 covers scoping requirements in the current ADA Standards for signs for means of egress.
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Areas of Refuge: ADA Standard Section 216.4.2
Section 216.4.2 covers scoping requirements in the current ADA Standards for signs at areas of refuge.
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A4.5.1 GENERAL
Slip resistance is based on the frictional force necessary to keep a shoe heel or crutch tip from slipping on a walking surface under the conditions of use likely to be found on the surface...
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Position of Grab Bars: ADA Standard Section 609.4
Section 609.4 covers the current ADA Standards for the position of grab bars.
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Lines of Sight and Dispersion: ADA Standard Section 221.2.3
Section 221.2.3 covers scoping requirements in the current ADA Standards for lines of sight and dispersion of wheelchair spaces in assembly areas.
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Accessible Means of Egress: ADA Standard Section 207
Section 207 covers scoping requirements in the most current ADA Standards for accessible means of egress.
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Turning Radius
minimum design curve radius can be calculated by using the following formula: where: R = Curve radius (ft) V = Design speed (mi/h) e = Rate of superelevation (percent) f = Coefficient...
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What surface characteristics are required of an accessible route?
A slip-resistant surface provides sufficient frictional counterforce to the forces exerted in walking to permit safe ambulation....
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Effect on Removal of Barriers in Existing Facilities: ADA Standard Section 101.2
Section 101.2 of the ADA Standards covers the effects of the removal of barriers in existing facilities.
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Inside Dimensions of Elevator Cars: ADA Standard Section 409.4.1
Section 409.4.1 covers the current ADA Standards for the inside dimensions of private residence elevator cars.
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Designations and Indicators of Car Controls: ADA Standard Section 407.4.7
Section 407.4.7 covers the current ADA Standards for designations and indicators of elevator car controls.
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302 Floor or Ground Surfaces
Slip-resistance is based on the frictional force necessary to keep a shoe heel or crutch tip from slipping on a walking surface under conditions likely to be found on the surface....
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Designations and Indicators of Car Controls: ADA Standard Section 408.4.7
Section 408.4.7 covers the current ADA Standards for designations and indicators of car controls in limited-use/limited-application elevators.