Limits of Protruding Objects
[US Access Board]
When most people think about accessible design, the first thing that comes to mind is designing for people in wheelchairs. However, there’s a lot more to it than that. Requirements in federal, state, and local accessibility laws and codes account for a wide range of disabilities, including vision impairments. One of the most important design considerations for people with vision impairments is eliminating projections into the circulation path. Objects projecting from walls or other fixed elements can pose a hazard if they do not meet certain requirements. Any object that extends more than 4 inches into the circulation path between 27 and 80 inches above the finished floor is considered a protruding object
and must be protected by a fixed cane detectable barrier installed below the object.
There are many ways to provide adequate protection at protruding objects and our accessibility consultants are always keeping an eye out for accessible design solutions that look like they were an intentional part of the design, rather than an afterthought. Here are just a few of the more successful and aesthetically pleasing examples of cane detectable barriers that we have come across…