How often do the streets get plowed?

Streets get plowed in the following order.  Main streets and Roads and hills are considered top priority.  Collector streets such as Union Ave, Nelson Avenue, the Boulevard, Park Street are second priority.  On average it take 5 and half hours after the snow storm ends to clean up the entire city.  During the snow storm depending on how severe it is dead ends and side roads should see a snow plow pass through approximately  every 3 hours.