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<br /> <br />Page | 18 <br /> <br />Pavement Management Technical Assistance (P-TAP) Round 24 <br />Table 2 shows the City’s current road network pavement condition categories. Approximately 71.5% <br />of the City’s road network has a PCI of 70 or better. <br /> <br />Table 2. Current Pavement Condition Categories <br />Current Condition Categories Current <br />Condition I - Good to Excellent (PCI 70 - 100) 71.5% <br />Condition II/III - At Risk to Fair (PCI 50 - 69) 23.0% <br />Condition IV - Poor (PCI 25 - 49) 5.4% <br />Condition V - Failed to Very Poor (PCI 0 - 24) 0.1% <br /> <br />Maintenance and Rehabilitation Strategies <br /> <br />The City’s current maintenance activities vary from project to project; each maintenance activity is <br />based on the section’s functional classification (Arterial, Collector, and Residential), surface type, and <br />PCI. Figure 7 illustrates a general pavement life cycle curve. The curve shows that pavements <br />deteriorate only 40 percent in quality in the first 75 percent of their life; this deterioration <br />subsequently accelerates rapidly, resulting in another 40 percent drop in quality in the next 12 percent <br />of life. Therefore, investing in preventative maintenance in streets classified as “Good Condition” (70 <br />and above) can save the city a significant amount of money in rehabilitation and reconstruction8 costs <br />in the future. Depending on the condition of the existing street, the appropriate roadway <br />rehabilitation treatment method will be selected to regain strength to the existing pavement. Types <br />of pavement rehabilitation are described below. MTC recommends that the City continue its <br />preventative maintenance efforts to utilize the recommended cost-effective treatments such as crack <br />and slurry seals. City staff has reviewed the maintenance strategies, and AMS has updated the <br />StreetSaver pavement management system. Part of the update was to review and revise the system <br />unit costs. These unit costs are used to calculate total funding and budget need calculation. These <br /> <br />8 Reconstruction is equivalent to a new pavement structure where it involves removal and replacement of the existing <br />pavement structure. <br />Page 186 of 228