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percentage of truck traffic on each segment and the calculated TI for <br /> each segment. <br /> Each of the roadway segments shown is projected to have a With- <br /> Project traffic index higher than the Existing traffic index. Data on <br /> the existing structural cross-sections for these roadway segments is not <br /> readily available, so no determination has been made of the existing <br /> effective traffic index for each segment. <br /> Mitigation Measure. Any improvements needed to the structural <br /> section of Austin Road between Mariposa Road and Arch Road due to project <br /> truck loading should be funded by the applicant. Pavement repair should <br /> be conducted when needed. <br /> TABLE 3.7 <br /> TRAFFIC INDEX CALCULATION <br /> Existing With-Project <br /> Daily Truck Daily Truck <br /> Roadway Segment Traffic % TI(a) Traffic % TI(a) <br /> Mariposa e/o Austin 5,100 8 7.9 5,190 10 8.2 <br /> Mariposa w/o Austin 5,450 9 8.1 5,560 10 8.3 <br /> Austin s/o Mariposa 860 5 5.8 1,050 19 7.4 <br /> Austin s/o Arch 530 11 6. 1 540 13 6.3 <br /> Arch w/o Austin 520 6 5.5 610 17 6.7 <br /> Arch w/o Newcastle 1,650 6 6.5 1,740 10 7.2 <br /> (a)TI calculations are from 10-year Traffic Index chart used by the San <br /> Joaquin County Public Works Department. <br /> Source: Holland, 1987. <br /> The applicant should contribute to the cost of any pavement repair <br /> needed on Mariposa Road and Arch Road in the immediate vicinity of Austin <br /> Road that would be partially due to project trucks. <br /> 3-35 <br /> 101-32.R3 4/10/89 <br />