I was standing and the luggage claim area in the Hong Kong International Airport, and being the optimized person that I am, I want to grab my bags as soon as they show up. So I was standing right where the bags are being dropped into the circular conveyor belt area.
After staring at the mechanism for a few minutes I noticed one thing, that the linear conveyor belt that drops the bags into the circular belt sometimes stops. There seems to be some sort of traffic monitoring going on. It seems to be looking for existence of baggage in the main belt and waits for a slot to drop it in if there are bags in the vicinity.
When I arrive in Vancouver, I noticed there is a similar system. Unfortunately there is also a guy working on the belt to smooth out the luggages. So obviously the system does not work as well.