Just set up terrestrial gps on a site and let the drone do that stuff.
It will be more accurate and reduce man hours.
We already have machines manufacturing a good portion of homes and buildings off site and then we slap that stuff together in no time flat.
Pouring floors on site doesn’t really makes sense anymore.
Nor does slapping walls together.
Just do that at some central factory and run the infrastructure for wiring, outlets, plumbing, etc at the factory and then hime run that stuff to IDF’s and risers, where it can all be joined to feed back to MDF’s, roofs and basements.
Many of the construction workers I’ve known are really not capable of doing anything else. It’s the last employment opportunities for people who can’t get through schooling or can’t stop drinking.
I don’t see a lot of construction workers retraining for something else. What else will there be that isn’t being done better by a computer?
So that’s what happened to all those “shovel ready” jobs.