Wheelchair ramp

Ramps permit wheelchair users, as well as people pushing strollers, carts, or other wheeled objects, to more easily access a building, or navigate between areas of different height.

[2][3] In general, reduced incline rises are easier for wheelchair users to traverse and are safer in icy climates.

[4] In many countries, wheelchair ramps and other features to facilitate universal access are required by building code when constructing new facilities which are open to the public.

Additionally, ADA limits the longest single span of ramp, prior to a rest or turn platform, to 30 feet (9.14 m).

The maximum permissible gradient is 1:12 [...], with the occasional exception in the case of short, steeper ramps when refitting existing buildings.

"[7] In Hong Kong, wheelchair ramps may not exceed a 1:12 slope, except in some situations under the Barrier Free Access (BFA) terms.