Assertion: elevator's passenger | /r/CapableOf | wait for elevator
Facets:
Source sentences:
text: There are many criteria we could consider: the number of passengers delivered to their destination, the time a passenger waits for an elevator to arrive, the time spent inside the elevator, the cost of the power consumed by the system, the wear and tear from moving and reversing directions, etc (or the resulting time and money spent on maintenance).
text: Let's assume we want to minimize two quantities: the time spent by passengers waiting for an elevator, and the distance traveled by the elevators (which effects both energy and maintenance costs).