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The following graph identifies the trigger points (PCI) for each treatment based on Functional <br />Class. <br />Project Prioritization <br />Selecting streets or street segments for treatment is done through a process involving analysis, <br />testing, and staff experience. Using the data produced by MicroPaver, and combining this <br />information with estimated revenues allows staff to approximate backlogs and group potential <br />street segments for consideration for treatment under the Pavement Preservation Program. <br />Stbasis. Public Worksmain objective is to keep street <br />segments from slipping into the reconstruction category, which typically costs four to five times <br />more per lane mile than rehabilitation. By rehabilitating (overlaying) a street before it <br />significantly deteriorates, 15 to 20 years of useful life can be added to a street at a substantial <br />cost savings over reconstruction. Once a street has deteriorated to the point that it must be <br />reconstructed,the opportunity for preventive street maintenance (overlay) is lost. For these <br />reasons, streets that are categorized as overlay projects receive the highest priority for corrective <br />treatment. If at some point in the future there are additional funds available,or if the majority of <br />overlay projects have been addressed, reconstruction projects will be scheduled. <br />A prioritized list of 32 street repair projects to be funded by a local bond measure was approved <br />by Eugene voters in 2008. The list, approved by City Council, was developed by staff based on <br />citizen input, information about needed street rehabilitation and reconstruction from the <br />pavement management system, and equitable geographic distribution of projects throughout the <br />12 <br /> <br />