Garden Maintenance in the communities

Our playground trip this morning turned into a watch-the-garden-maintenance-men working morning...(although there are none in this photo)

It is a quiet peaceful morning.A truck pulls up at about 9am. Usually a twin cab with a covered tray, pulling a trailer that would fit atleast one horse in it. I've also seen a sort of army style truck with a canvas covered back. There are usually two vehicles.
Then, you realise that the truck has dropped the gang off somewhere and driven in somewhere central to park, because the world explodes, in edgers, wipper snippers, about three different kinds of mowers, people with rakes, wheel barrows, etc.
As far as I can see, they throw labour at the job - at least 6 people this morning. They have a large collection of tools (about 5 wipper snippers on a special rack anyone?)/engines, and they sort of arrive, fill the air with noise, then move on after about 45 mins. They move across the community, from one end to the other, and leave the place spick and span. Not necessarily perfect, but definitely trim.
They come back the next day to do the detail work - edging around trees, putting down compost/barkchips, random wipper snippering etc.