What should be considered when selecting a slope ratio for ramps?

When selecting a slope ratio for ramps, accessibility is the most crucial factor to consider. A ramp's slope directly affects how easily individuals, especially those with disabilities or limited mobility, can use it. The Americans with Disabilities Act (ADA) provides specific guidelines regarding slope ratios to ensure that ramps are safe and accessible for everyone. Typically, a ratio of 1:12 is recommended, meaning that for every inch of vertical rise, there should be at least 12 inches of ramp run. This guideline helps to ensure that the ramp is not too steep, which could pose safety risks and make it difficult for users to navigate.

In contrast, while the availability of materials, cost efficiency, and speed of construction are also important considerations in construction projects, they do not hold the same level of priority as accessibility when it comes to ramp design. Ensuring that a ramp is compliant with accessibility standards is paramount so that it serves its intended purpose effectively. Therefore, focusing on accessibility first guarantees that the ramp can be used safely by the widest range of users.