This is an interesting idea. What are the expected benefits? Off the top of my head:

* Saves on commute or travel time.

* Job sites no longer need to provide housing for workers.

* Allows the vehicles to stay in operation continuously, currently they shut down for breaks.

* With automation multiple vehicles could be operated at once.

The biggest benefits seem to be in resource extraction but I believe the vehicles there are already highly automated. At least the haul trucks.