Five Common Accessibility Mistakes Made During the Design Process

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The Americans with Disabilities Act (ADA) was enacted on a federal level in 1990 to ensure equal access to public spaces for individuals with disabilities. International Building Code (IBC) also has a set of codes with an International Code Council (ICC) standard that spells out specifications to make sites, facilities, buildings, and elements accessible to and usable by people with disabilities.

Architects in conjunction with accessibility experts play a crucial role in creating spaces that comply with both the ADA’s federally mandated regulations and IBC’s guidelines. IBC regulations, which are typically adopted per state, contain scoping provisions for accessibility utilizing ICC A117.1, Accessible and Usable Buildings and Facilities, as the referenced standard to technical provisions.

Although these state and federal regulations and guidelines are firmly in place, many critical spatial elements are overlooked during the design process which can result in non-compliant spaces. The following are five accessibility mistakes that are often made during the design process.

Five Common Accessibility Mistakes In the Design ProcessInsufficient Clearance Space
One of the most common accessibility mistakes is not providing enough clearance space for people with mobility aids such as wheelchairs, walkers, or crutches. Accessibility guidelines specify the minimum width required for doors, hallways, and pathways, as well as the necessary maneuvering clearances around key fixtures like water closets. “This is critical to comply within the design of the space because insufficient clearance space can make it difficult for people with mobility aids to navigate and utilize the common spaces that can be accessed and used by everyone else,” explains TERPconsulting accessibility consultant Jason Beck, AET.

Inaccessible Entrances
Designing entrances that are inaccessible to people with disabilities is another common mistake, according to Jason. She explains that accessibility guidelines specify the requirements for entrances, which include the minimum number of required entrances, clear width, maneuvering clearances, maximum slope, and providing an accessible route from public right-of-ways and parking facilities to the building entrances. “Architects must ensure that entrances are accessible to people with disabilities and that there is also an accessible route to the entrance,” advises Jason.

Improperly Designed RestroomsFive Common Accessibility Mistakes In the Design Process
Restrooms are another critical space that must be designed with careful consideration for people with disabilities, including those who use wheelchairs or have limited mobility in mind. “I encounter the most mistakes in bathroom designs,” explains Jason. “Often designs do not provide enough clearance around a water closet to allow for someone in a wheelchair to maneuver into the space and transfer to the toilet. Also, it’s common to find improper placement of grab bars, soap dispensers, paper towel dispensers, and other accessories out of reach for someone in a wheelchair.”

Accessibility Mistakes 5Leeway on Specifying Tolerances
Another accessibility design consideration concerns providing judicious leeway for construction tolerances. Consideration of practical tolerances in the field will ensure adequate space and not push it to the maximum if a range is provided in the code. For example, the range is the constructed tolerance if toilets are required to have the center line 16” minimum to 18” maximum from the adjacent wall. “If a range is given, and the contractor decides to build it to the 18” maximum but is at 18-½”, it does not comply and will have to be moved. The architect should specify a number within the range rather than provide the minimum or maximum number,” advises Jason.

Five Common Accessibility Mistakes In the Design ProcessImproperly Designed Ramps
Ramps are essential to accessible design and provide an alternative to stairs for people with mobility impairments. It’s critical that ramps are properly designed and meet the accessibility requirements for slope, width, top and bottom landings, changes in direction, and surface texture. “The most common mistakes I see are ramps that are too steep or too narrow,” explains Jason. “Another mistake I see a lot of is not providing intermittent landings on long ramps. It is often difficult for people using wheelchairs or walkers to navigate long steep ramps, so providing a flat landing for a brief rest is helpful.”

Together, architects and accessibility specialists play an essential role in creating spaces that comply with accessibility regulations and standards. “By avoiding mistakes during the design process, we can help create spaces that are accessible to everyone, regardless of their abilities, and save projects from incurring code violations that can be costly to fix with regard to both time and money,” explains Jason. It’s crucial to stay informed about the latest accessibility guidelines and consult with an accessibility expert to ensure that a project’s design meets the needs of all individuals and is code compliant.

To find out if your project complies with accessibility regulations, contact TERPconsulting accessibility consultant Jason Beck.

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