Fireman's Pole With Stairs Combo

I saw this great picture of a spiral staircase with a slide around it and noticed that it seemed too small to really be useful for an adult. What's really required is a fireman's pole, although that is a safety nightmare, especially for small children. Since spiral staircases are problematic to get approved in many areas owing to their narrow treads near the pole, I decided to design one using regular right angle stairs with landings. It doesn't take too much imagination to see how it would translate to a spiral stair. I assumed a story height of nine feet, which can be accommodated nicely in fifteen steps. These stairs could be extended up multiple floors if desired, with the pole extending all the way to the bottom floor. A more practical, if less entertaining, use for the central area would be as a wheelchair lift.