Guidance on the 2010 ADA Standards for Accessible Design

Analysis and Com menta ry on the 201 0 A DAStandards extensions that comply with 4.9.4(2) of the 1991 Standards should meet or exceed the requirements of the 2010 Standards. Commenters noted that the 2010 Standards will require handrail gripping surfaces with a circular cross section to have an outside diameter of 2 inches, and that this requirement would impose a physical barrier to individuals with disabilities who need the handrail for stability and support while accessing stairs. The requirement permits an outside diameter of 1 ¼ inches to 2 inches. This range allows flexibility in meeting the needs of individuals with disabilities and designers and architects. The Department is not aware of any data indicating that an outside diameter of 2 inches would pose any adverse impairment to use by individuals with disabilities. Handrails Along Walkways. The 1991 Standards do not contain any technical requirement for handrails provided along walkways that are not ramps. Section 403.6 of the 2010 Standards specifies that where handrails are provided along walkways that are not ramps, they shall comply with certain technical requirements. The change is expected to have minimal impact. Department of Justice Guidance on the 2010 Standards: Titles II and III - 165