What does the run-rise ratio typically apply to?

The run-rise ratio is a crucial concept that applies to slopes, particularly softscape slopes, where it is used to describe the steepness or grade of the slope. This ratio reflects the relationship between the horizontal distance (run) and the vertical distance (rise) of the slope, which is important in landscaping and site design where soil stability, drainage, and safe accessibility are considerations.

In softscapes, understanding the run-rise ratio helps landscape architects design slopes that are not only visually appealing but also functional and safe. This is especially relevant for areas that may need to support plant growth or manage water runoff effectively.

While the other options may involve certain design principles, they do not specifically relate to the concept of run-rise, which is primarily concerned with sloped surfaces typical of landscaping contexts. For example, commercial structures may have considerations related to building codes and accessibility standards, but they do not directly engage with run-rise ratios in the same way as slopes in softscape design.