It seems like that might knock you over, but maybe there's a fun workaround (or just seats I guess).
"Future employees might move around landscrapers on elevators that zoom back and forth laterally, not only up and down, she notes. That technology already exists in Germany, where ThyssenKrupp has recently sold the first elevator that can move up, down, sideways and diagonally—controlled by magnetic levitation—to a residential building in Berlin."
Somewhere I saw a prototype of a multi-belt system as well. You get on a shorter one at normal speed, and you can either transition to one moving twice as fast as the first, or you can step off completely. The speed difference from stationary to slow is the same as from slow to fast - you just accelerate by shifting belts.