Note: This document or portion of document references a state or local code that aligns with the 2010 ADA Standards requirements.
11B-302.1 General.
Floor and ground surfaces shall be stable, firm, and slip resistant and shall comply with 11B-302.
Exceptions:
- Within animal containment areas, floor and ground surfaces shall not be required to be stable, firm, and slip resistant.
- Areas of sport activity shall not be required to comply with 11B-302.
Advisory 11B-302.1 General. A stable surface is one that remains unchanged by contaminants or applied force, so that when the contaminant or force is removed, the surface returns to its original condition. A firm surface resists deformation by either indentations or particles moving on its surface. A slip-resistant surface provides sufficient frictional counterforce to the forces exerted in walking to permit safe ambulation. ◼
Advisory 11B-302.1 General. Outdoor walking surfaces are often constructed of concrete or asphalt. Where permeable surfaces such as compacted decomposed granite or similar material are part of the
accessible route, stabilizing admixtures or binders can help to provide a firm, stable and slip-resistant surface. Such surfaces should be edged or otherwise contained to provide stability. The maintenance required to keep these surfaces firm and stable should be considered when selecting such materials.
Additional information regarding accessible exterior surfaces is available on the US Access Board website at http://www.access-board.gov/research/completed-research/accessible-exterior-surfaces. ◼
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