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<br /> <br />Page | 12 <br /> <br />Pavement Management Technical Assistance (P-TAP) Round 24 <br />Table 1. City Network Summary Statistics <br />Functional <br />Classification <br />Total <br />Sections <br />Total <br />Center <br />Miles <br />Total Lane <br />Miles <br />Total Area <br />(SF) PCI <br />Arterial 95 28.62 116.39 10,053,533 70 <br />Collector 289 72.99 175.55 16,502,206 77 <br />Residential/Local 957 107.73 215.57 19,659,972 81 <br /> 1,341.00 209.34 507.51 46,215,711 <br /> <br /> <br />Pavement Condition Assessment <br /> <br />A pavement surface assessment is completed by identifying surface distresses within each pavement <br />management section. Inspections entail evaluating a representative sample (10% of the area), <br />identifying different pavement surface distresses (8 distress types), measuring severities (low, <br />medium, and heavy), and quantifying them. Figure 2 is an example of eight different surface distress <br />types. Inspectors use StreetSaver as a tool to calculate the condition of each management section. <br />StreetSaver is an industry-standard (modified ASTM 6433) software used to generate a pavement <br />rating known as a PCI (Pavement Condition Index). A PCI rating is a numerical value between 0 and <br />100, with 0 being a failed road and 100 being a brand-new street (Figure 3). The PCI is calculated using <br />the StreetSaver system algorithms that MTC developed. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Page 180 of 228