Guards on forced OT were sleeping.
I said for 10 yrs. as a union rep that forced OT is the same as drinking.
Reaction time lowered, less productivity, people sleep, etc. You wouldn't tolerate drinking but it's fine to have 16-18 hour zombies there.
Truck drivers have federally mandated H.O.S (hours of service)
I'm in the 70/8 guidelines. No more than 70 hours within 8 days, once I reach 70 hours I have to take a 34 hour reset. I usually hit 70 hours in 5 days though, sometimes 6
I can be on duty 14 hours a day and only 11 of those hours can be actual drive time, then I have to go off duty for 10 hours before I can go back on duty again
I have to take a 30 minute break within 8 hours of going on duty
I think it's a good rule.
No doubt I could drive longer, but I'm sure my reaction times and awareness would start going downhill.