Exactly. Which means peaks and valleys in sound. That excavator and compactor get shut off when they’re not in use.
So at the end of a 12 hour shift…. They sit at a constant rev all day so the oils and hydraulics don’t get cold and stiff, it’s also terrible for seals to be constantly dried out from starts and stops.
You’re being disingenuous about the actual severity and longevity of construction projects and equipment.