This sounds like it might work. Yes, avoiding collisions would be a problem. There won't be enough room in the building to have a separate tunnel for every floor, so you will have hundreds of people trying to jump into the same tunnel on different floors at the same time. There might be a way to solve this though.

Making it fireproof might also be a problem. If people can get into it on every floor, then the fire/smoke might also. "Fireproof" stairways have the same problem.

I wonder how many people would try to sneak in to it just for for a thrill.

The idea sounds interesting and applicable.

It is also important to teach people how to use it correctly and efficiently.

I would love to see this idea work. But i dont see people, especially old executives, jumping into a slide off the 70th floor. Someones gonna hit someone else at a high rate of speed. People panic, and will cram into it to fast, or someone wont jump properly, break his neck, sue the bldg.

OTOT, if every other floor had its own slide, it could slide you, not to the bottom, but to a safer floor instead. And if that wasn't safe, slide on to another safe floor. Maybe a stop every 10 floors or so. Then each floor could have its own slide, and no jamming. The exit points would have to be fire proof too, so no one lands in a flame on the exit. The sloop, man, would have to be like 60 or so degrees, which is fast, even in a spiral, and probably would get you moving too. Wow, this sounds like alot of fun!!

Hello,if I may suggest that for example you're on the seventieth floor that maybe the distance of the next building across might be shorter and a female docking end which would be maybe a floor lower for an inclined position maybe a beam???