What is the slope ratio of the specified ramp?

The slope ratio for ramps is crucial for ensuring accessibility and compliance with guidelines such as those outlined in the Americans with Disabilities Act (ADA). A slope ratio of 1:16 indicates that for every one unit of vertical rise, there are sixteen horizontal units. This provides a gradual incline that is easier and safer for individuals using wheelchairs or other mobility devices.

A 1:16 slope is considered a good balance between functionality and safety, allowing for longer ramps without compromising usability. Ramps that follow this slope ratio are less likely to cause fatigue for users and reduce the risk of accidents that might occur on steeper ramps.

In comparison, the other slope ratios present a steeper incline, which might lead to difficulties for users with disabilities. While a 1:12 slope is often permitted for shorter ramps, its use is generally limited to specific contexts or necessary situations, and steeper slopes can be more taxing or even hazardous. Thus, the choice of 1:16 represents the ideal recommendation for accessibility.