Why are stairs used more than slopes?

Question

Stairs are harder to walk, and higher risk of injury than slopes (imagine falling from stairs versus falling from slope).

So why aren’t slopes used more commonly in buildings?

Even stairs-shaped escalators are more common than slope-shaped escalators.

**Edit:** By “slopes”, I mean “ramps”. Pardon my English.

In: 0

Answer 1

In winter, an icy set of stairs can still be navigable with time and careful footing. An icy slope of even a quarter grade that of stairs would be impossible for most adults and any heavy person to surmount without slipping back down.