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with safe winter driving conditions prior to critical time periods. The most critical time periods are weekday morning and evening rush hours. The City will attempt to remove ice and snow from the City maintained collector and priority streets prior to rush hour periods. Normally, collector and priority streets are plowed first. Once the collector and priority areas are plowed and opened, the remaining streets in the residential, commercial, and industrial areas will be plowed and ice control applied. Snowfall greater than 6Ñ. Each plow route has a system of collector, priority, and secondary streets that link neighborhoods, major arterials, and facilities such as schools, health care facilities, etc. Depending upon the duration of any snowfall event, it may be necessary to continually clear priority streets in order to assure public safety. Once snowfall has ceased, priority streets within each route will be cleared before snow removal begins on secondary streets. Ice control measures will follow once streets are plowed full width. Each year the Public Works Department Street Maintenance Division reviews and makes changes as deemed necessary to a map (Exhibit A) showing the city maintained street system and snow plow routes. Equipment is assigned to each route based on availability and the effort required for the control of snow and ice. The routes will be periodically revised to correspond with the budgetary, equipment, and personnel resources available. Within each route, the collector and priority streets are defined along with streets and highways within the city limits that are maintained by other government agencies. Streets and highways within the community that are maintained by Ramsey County and the Minnesota Department of Transportation will be maintained under the county and state maintenance policies. Snow and ice removal operations will be conducted only when weather conditions do not endanger the safety of employees or equipment and operations are effective. Under severe conditions, limited visibility, or where weather patterns suggest additional ice and snow, streets may not be plowed Ðfull widthÑ and plowing in some areas may be delayed. Factors that may delay snow and ice control operations may include severe cold, significant winds, limited visibility, and rapid accumulation of snow. Parking Lots General winter maintenance requirements for parking lots have been established for different snow and ice events as follows: Freezing rain, sleet, black ice, and freeze thaw. These types of events are based on changing weather conditions. Critical parking lots will have ice control material applied as soon as practical as determined by the Street Maintenance Supervisor or Park Maintenance Supervisor. The remainder of winter use parking lots will be monitored for safe conditions and ice control application after all streets and critical lots have been completed. Snowfall of less than 2Ñ. Plowing may not be necessary and ice control procedures may be adequate to produce safe winter conditions. The Street Maintenance Supervisor and Park Supervisor will determine if snow depth or drifting will require plowing of parking lots. Snowfall greater than 2Ñ. Snow removal on critical parking lots will begin as soon as practical after snowfall has ended. These lots will be plowed simultaneously or immediately after street plowing is completed. All other winter use parking lots will be plowed as equipment and personnel become available after emergency plowing is completed. During extremely heavy snow events, critical parking lots maybe plowed before snowfall has ended to allow for emergency vehicle access and city business to be conducted. Each year the Public Works Department Street Maintenance Division and the Parks & Recreation Department Maintenance Division will review and make changes to a map showing city parking lots (Exhibit F), their priority level (critical or winter use) and department of responsibility. EQUIPMENT The City will acquire, maintain, repair, and replace equipment on a timely basis, as the CityÓs established budget will allow. To provide for utilization of equipment in a cost-effective manner, the City may use city Page 6 of 10 Qbhf!37!pg!263