New Technology That Could Cut Public Restroom Wait Times
forbes.com
forbes.com
With this, you could look at a map with simple %'s and see not only average usage - but the exact occupation rate right now. You could then see that the Hall A's restroom is only at 50% capacity and head over there.
A similar technology could be employed for seating and room occupancy as well, telling you better break rooms or where all the crowds are. Wouldn't it be awesome if you knew your coworker was in her cubicle, even if she wasn't on the computer? Or if you're a building manager, you could note the number of people who use certain restrooms, hallways and meeting rooms and adjust accordingly to redirect traffic elsewhere.
Essentially, these sorts of things are what traffic engineers have been doing for a long time - but applied to people instead of cars.
This doesn't really clarify what happens with a stall that's out of order or in an, ahem, "unusable" state. In fact it sounds more confusing because now the person that was first wants to become first again and wait for another usable stall to open...