The region typically has no more than five snow events in a season. Temperatures below the freezing level are typically brief, but there has been several prolonged events (5 days or greater) of below freezing temperature that results in icy conditions. Due to the hilly terrain of the City, even brief snow fall events can result in a significant congestion condition of the City’s transportation network. The City has identified snow routes based on the street function, traffic volume, and importance to the welfare of the general community. Priority is given to routes with higher volume travel roads, which connect major sections of the City and provide access for emergency fire, police, medical services, and school bus routes. There are four classifications of routes: First Priority, Second Priority, Low Priority, and nondesignated. To learn more about the City's priorities for snow and ice maintenance review the City's Snow and Ice Control Plan.