Elevator Buttons: Fubar!

Reader Nick Puglisi sent in this photo of the mind-boggling buttons in the elevator at his office.  This particular elevator is already a little challenging, since it has both front and back doors - but whoever designed the button layout just used that as a starting point for an opus of confusion.  I'll let Nick take it from here:

Two things involved in this picture.

1) The close (and open) symbols for front and rear are differentiated by a line in the middle of the close symbol, but it's not clear why that line means front.  

2) The braille is exactly the same for both buttons, so I looked up the braille alphabet and the translation is "Close". But it again, doesn't indicate which door will be closed.   

 It's the same with the "Open" buttons. So, what happens when someone says "hold that door" (meaning the rear door) and a blind person in the elevator finds the button that says "open," only it's for the front. They would look like a jerk when the rear door closes on the person trying to catch the elevator.   

 I'm sure it's a pretty infrequent occurrence, and I would wager that blind people have to deal with that type of problem a lot. But still.

I think he's made as much sense of this "design" as is possible - and for everyone else in that building, you're on your own from here on out!
[Thanks, Nick!]