Recommendations on Standards for the Design of Medical Diagnostic Equipment for Adults with Disabilities, Advisory Committee Final Report

5.8.1 Wheelchair Spaces on Raised Platforms.

5.8.1.1 Clear Platform Size. The platform should be a minimum clear width of 32-inches and a minimum clear length of 40-inches.

5.8.1.2 Entry to Wheelchair Spaces on Raised Platforms.

5.8.1.2.1 Ramped Entry Slope. Raised platforms should have a ramp with slopes that do not exceed the following:

Rise 0 to 1 ½ inches – 1:2 Slope
Rise >1 ½ to 2 ½ inches – 1:8 Slope
Rise >2 ½ inches – 1:12 Slope

5.8.1.2.2 Single Ramped Entry – Edge Protection on the Platform and Platform Sides. A 2 inch high edge protection must be provided on the back of the platform, opposite the entry ramp and a minimum 2 inch high edge protection on the sides of the platform.

5.8.1.2.3 Double Ramped Entry – Edge Protection on the Platform Sides. A minimum 2 inch high edge protection must be provided on both sides of the platform for double ramped entry platforms.

5.8.1.2.4 Edge Protection on Platforms 1½ inches or less in Height. Edge protection is not required on platforms 1 ½ inches or less in height.