If we assume a large building with multiple elevators, what would be the name of a group of elevators?
Consider a group all those in close vicinity to each other, in the same hall but not necessary with the same amount of locations (stories). If a wide building is considered, it's perfectly possible to have for example 2 elevators at the North side and 2 elevators at the South side of the building. North and South would be considered their own group (if the distance between them is large enough).
Example usage:
We're walking towards the Northern group of elevators.
Two out of three elevators from the Southern group of elevators broke down.