There were numerous reasons that multiple areas were shutdown during that November snowstorm and a lot of people do not understand that. It was not just NYC. It was happening in Jersey too. People left for work in the morning and saw 0 - 2" of snow in the forecast. So they got into their car and drove to work. If the forecast would have said 3" - 6" of snow, a lot (Maybe thousands) of those people in small cars would have taken public transportation or car pooled. So right off the bat you have more cars on the road than you normally would during a snowstorm. Another issue is MTA buses perform horribly with any accumulating snow. Any more than 2 or 3 inches they need chains on the tires. Not much in Manhattan, but a lot of the other boroughs have a lot of hills and buses became stranded in the road, unable to get up the hills. That also added to the traffic jams of every day rush hour. IMO, those are two of the biggest factors. Could the DSNY have pre-salted roads and have had more plows on standby? Probably. But when you get 1"-2" an hour rates during rush hour in major metropolitan areas, it will be almost impossible to keep up with.