Re:Where to wait for an elevator (2010)
by deathanatos on Wednesday July 06, 2022 @04:21PM
(#32006299)
I didn't think elevators permitted scenario 1 to occur at all; I thought they refused to allow selecting floors not in the direction of travel.
(I don't usually board elevators traveling in the wrong direction, ofc., so, I'm not that sure.)
Re:Where to wait for an elevator (2010)
by zerocrates on Wednesday July 06, 2022 @04:37PM
(#32006495)
I haven't done it in a while but my recollection is that if you press a "wrong-direction" floor it will just go there after having completed all the previously-selected stops.
Re:Where to wait for an elevator (2010)
by scrumbledober on Wednesday July 06, 2022 @05:42PM
(#32007181)
not just previously selected but it will wait until there are no stops in the current direction, then switch directions and go in the reverse order
Re:Where to wait for an elevator (2010)
by zerocrates on Wednesday July 06, 2022 @06:04PM
(#32007406)
Yeah I wasn't sure what will happen if more people add in stops in the "right" direction afterwards, I don't think I've ever been in that situation, but that makes sense.
Re:Where to wait for an elevator (2010)
by spogbiper on Wednesday July 06, 2022 @04:39PM
(#32006518)
The one in my building will allow you to select any floor at any time. it always goes to the last stop in the current direction before reversing as far as i have noticed
I've experienced both kinds of elevators. Some don't let you select a floor that's in the wrong direction, so you can notice you entered the wrong elevator and get back out.
Rather than testing these scenarios, couldn't one simply just(tm) not allow deselection in these scenarios?
Then you’d have to test that. And it would still be confusing to users that deselecting only sometimes works.
Re:Where to wait for an elevator (2010)
by bobthepanda on Wednesday July 06, 2022 @05:31PM
(#32007075)
Right.
HN is not representative of the average person, or even a standard cross section of society. A elevator has to be legible to an 8 year old child, an 80 year old retiree, someone who is blind, a person who is deaf, etc.
When designing for such a broad audience, KISS (keep it simple, stupid)
1. When the currently targeted floor is deselected and the remaining selected floors are all in the other direction: Then the elevator would have to either reverse course without stopping — a situation which otherwise doesn’t occur and would be unexpected and possibly dangerous for the passengers — or stop on a non-selected floor before changing direction, which would be confusing as well.
2. The deselected floor was the only selected floor: The elevator would then have to choose a floor to stop on by itself — e.g. the next one it can safely stop on — which is also a situation that doesn’t otherwise occur. In addition, deselecting the only selected floor doesn’t seem to be a practical use case.
So instead of having to define, implement and test a behavior for those odd situations, it’s safer and less costly to just disallow deselection.