01-22-07 Item 2B, Five Year CIP Update

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City of Arden Hills Budget Analysis Report May 04, 2006 Page 6 Budget Needs and Scenarjos The data collected from the PCI surveys was correlated to other City-supplied information such as pavement age, functional class, and historical budget expenditures to serve as the basis for multi-year budget projections. The following pages describe the general process that GoodPointe Technology followed to develop the budget needs and scenarios for the City of Arden Hills. Introduction Once the pavement network has been defined and each section has been inspected, the condition of the overall network condition without maintenance or rehabilitation can be determined by projecting the PCI into the future. Pavement sections are selected for maintenance and rehabilitation during a multi-year analysis period if they meet the decision criteria established based on PCI, functional class and surface type. When they are identified for maintenance or rehabilitation, a network-level budget planning maintenance strategy for pavements of that condition is used to determine the funds needed for that section. Those funding needs are totaled for each year of the analysis period to determine budget needs. The first step is to identify the best maintenance strategy for each pavement surface type - pavement condition group and develop decision trees. This requires a long-term life cycle cost analysis of typical pavements from each group in different condition categories. The following three general maintenance categories have been correlated to the respective PCI ranges to provide a realistic maintenance and rehabilitation treatment assignment. Seal Coat At the high end of this range, pavements may have little or no distress. At the low end of this range pavements may require intensive local repairs and/or seal coats. A pavement in this category may be generally described as "good" to "excellent" with a PCI between 65 and 85. Overlay Pavements have a significant level of distress that mayor may not be load-related. A pavement in this category may be generally described as "poor" to "fair" with a PCI between 25 and 65. Reconstruct Pavements have extensive amounts of distress. A pavement in this category may be generally described as "very poor" to "failed" with a PCI between 0 and 30. Pavement Management Decision Tree Each pavement section was analyzed according to its predefined global and local strategy and processed through the following pavement management decision tree.