Time to learn about realistic evacuation possibilities. I’ve been invited to present ideas to my company’s security and facilities departments.
I’ve found a number of devices:
Evac+Chair
Evacu-Trac
Carrydown CD7
LifeSlider
I’m working on a criteria list:
Cost
Storage required
Ease of use
Training required
What else?

Well, for what it’s worth, I think No. 3 looks the most comfortable (for the rider, at least).