when you are studying architecture is really important to understanding safety of stairs in building construction because people use stairways in their everyday activities. there is a lot type of stairs that we motions there such as run, quarter and  turn, winding, circular, and spiral stairs. But even there are different they have so much safe code and rules that are similar any kind of stairs made must be conventional so that other architects can clearly read your section cuts and plan also have to be label and have the same measures for the enough people tp fit in. we also learn the rise that have to be a min numers. In conclusion, for all the designer stairs just can be on way PERFECT.