The Idea is to add a kind of elevator for trucks, tractors and explorers (eventually one elevator for each Type, smth like "Vehicle Elevator lvl 1/2/3) that lets you quickly treverse huge cliffs and factory floors, which also can be recorded in a vehicles automation-menu.
The emphasis is more on being able to pass over cliffs, because within a factory, you could just use Item elevators, but the option to carry your truck-load (get it? eh? eh?(sry)) of items quickly to the top of your factory, from which it then could be distributed to the seperate machines, still would be nice.
Now, as said, the emphasis is on overcoming cliffs. The Elecator could be similar to a Truck-Station, in that you have to place it down, that being a top and bottom part that will be locked to one another, and provide it with power for it to run.
Let's say we're docked with a tractor to the bottom part of the elevator. The Vehicle locks in place and a pair of clamps lower themselves from the top part and pick up the tractor. When we then arrive at the top, the elevator then either puts some sort of floor underneath the vehicle or shifts sidewards, placing you on the ground or a foundation, which you hopefully built.
Same story for when you want to go down again, just the other way around.
Thanks for reading and have a nice day!