Here is my kooky idea:

What about permanant zip lines attached at floors divisable by 10 to buildings and structures in the general area? They could set it up so there is no more than a 25 degree angle on them. Then, stock 300 or so harnesss on each floor of the building. Then, people could simple step into their harnesses and "slide" down the zip lines to nearby buildings...


My friend at work thought about making some sort of inflatable emergency slide. I told him the slides would melt on the upper floors from the fires, and I don't think you could "slide" down 100 stories...