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i <br /> Direct haul cost for the reduced collection fleet, asshownin <br /> Table 4-2, is estimated to be $442, 000 . Costs are categorized with <br /> respect to vehicle amortization, labor and operation and maintenance <br /> expenses. <br /> Transfer Vehicles: <br /> Transfer haul costs are presented in Table 4-3. Costs are categor- <br /> ized with respect to vehicle amortization, labor and O & M expenses. <br /> Assumptions used in determining tractor and trailer requirement are <br /> presented in Appendix A. <br /> Using top-loaded trailers, the annual haul cost is approximately <br /> $268, 300 . The annual haul cost for a rear-loaded trailer operation <br /> utilizing stationary compactors is approximately $274, 000 . <br /> TABLE 4-3 <br /> TRANSFER VEHICLE HAUL COSTS <br /> I _ Trailer Tvpe <br /> System Information <br /> Open Top Enclosed <br /> Payload (1) (tons) 17 18 <br /> Cycle Time (2) (hours) <br /> Trailers 1.13 1.51 <br /> Tractors 1.13 1.18 <br /> Vehicles Required (2) <br /> Trailers 5 6 <br /> Tractors 5 5 <br /> Annual Trips (3) 5,901 5,573 <br /> Annual Operating Hours (4) 6,668 6,576 <br /> Annual Miles (5) 128,642 121,491 <br /> System Haul Costs <br /> Salaries (6) @ $27,700/ea $110,800 $110,800 <br /> Vehicle Amortization(2) 67,900 76,400 <br /> Vehicle 0 & M(2) 89,600 86,800 <br /> Total $268,300 i $274,000 <br /> (1) Capacity (tons/trip) <br /> (2) Refer to Appendix A for discussion <br /> (3) Annual trips = (100,308 tons/yr)/payload <br /> (4) Annual operating hours = (trips/yr) (tractor cycle time) <br /> (5) Annual miles = (trips/year) (21.8 miles/trip) <br /> (6) Four drivers per system; one tractor held for spare <br /> - 23 - <br />