How often do people travel between non-ground floors though? In my own experience, whether it's a residential or an office building, 99% of elevator usage is a) someone going down to the ground floor, and b) someone going up from the ground floor. There are some exceptions like hotels that have amenities on different floors though.
The first elevator "algorithm", if you can even call it that, that I've ever encountered and that seems intuitive to me, is what Soviet relay logic elevators did. If it's not in use and someone calls it, it goes there. If it's in use, it will collect the calls on its way down (and ignore them on the way up, these had no up/down call buttons). It's surprisingly effective for apartment buildings.
I was confused by this "LOOK" algo... I'm American and I've lived all over the place, and I'm not familiar with elevators that pick you up on the way up if you pushed the down button. As far as my experience, they only pick you up on the way back down. To the extent that if I did hit the down button and got in and it went up, I'd think I'd gotten in the wrong elevator or there had been a mistake.
grishka · · focus · HN ↗
The first elevator "algorithm", if you can even call it that, that I've ever encountered and that seems intuitive to me, is what Soviet relay logic elevators did. If it's not in use and someone calls it, it goes there. If it's in use, it will collect the calls on its way down (and ignore them on the way up, these had no up/down call buttons). It's surprisingly effective for apartment buildings.
noduerme · · focus · HN ↗