I had to laugh at alot of those comments, I used to work for the local authorithy on the "gritters" firstly no matter what time day or night we where called out we where STILL expected to turn in for our normal shift of 7.45 am till 4pm (unless the "grit" was still running). secondly 90% of the lorrys where "demountabale" bodies that during "normal" and summer work where used for tarmacdan or general haulage work. The other 10% of "permanant" mounted gritters would go to the Head office for complete overhaul and inspection. The "Demounts" would also be shipped down so to avoid and breakdown over the winter period. As for the drivers during the rest of the year we where deployed to other units for other work. e.g grass cutting, road surfacing, tarmacing etc etc. Hope this helps.