When there is a major snow storm the towns need heavy equipment to push the banks back, or cut down the number of streets one truck has to cover. Most plow trucks have a large district to cover, they hit the first road, then continue onto the next until their down with their route and start over again, by the time they get back to the start it's as if they never plowed it (heavy storm). Plymouth has 1 truck per district. I was in Abington and covered a large district, but had a truck and backhoe with me. Once you fall behind the trucks don't have the weight to push back the snow banks. Thats why you have to set the edge early with a truck and keep after it. When I returned to Plymouth I noticed 2 lane roads turned into one. However, Rt 80 in Plymouth is covered by the State and all the banks were pushed back using their heavier equipment.
Snow removal: when I worked in the North End and Southie I would push and pile the snow at corners of intersections until it stopped snowing then I'd load trucks for removal. Same thing I did in down town Rockland Thursday and Friday. In Abington same deal except we didn't remove the piles I just cut then down so little smart car drivers could see. So typically city streets, or main streets in towns have snow removal, in the burbs, intersections get cut down unless the town has the cash for removal. Pushing back the snow is a lot cheaper then having it loaded and trucked out. I did one bank lot and it cost $2000 for loading and trucking out.