...Which would be an odd location for guest quarters, but perhaps a logical one for a dungeon and torture chamber. We never really learn which fate awaits the captive.
At least these should somehow signal the waiting passenger how long it will take for the next cabin to arrive.
Perhaps this is further proof that waiting is not a feature in a system of this sort? In a properly user-friendly system, the user standing in the corridor does not need to know anything about the movement of the lifts, any more than the passenger of a bus needs to know about the flow of fuel in the engine of the bus.