Plan and section views define the dimensional configuration of truncated domes used for detectable warnings on accessible walking surfaces. The plan view establishes a 0.90-inch base diameter, a 0.45-inch top diameter, and a center-to-center spacing of 2.35 inches apart. The section view specifies a dome height of 0.20 inches and tapered edges where exposed. An accompanying note outlines the requirement for a continuous detectable warning at boundaries where walks cross or adjoin vehicular ways without curbs or railings.
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