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On the last row of Table 4-10 is the calculation for having a single truck service every household <br />in Eagan. The relational factor of fuel efficiency is 30,651 divided by 14,123, or 2.16. This <br />means it takes 216% more fuel to service all of the households by several vehicles than would be <br />necessary for a single vehicle to service all of the households. The difference over one year is <br />calculated to be a savings of 16,528 gallons of fuel. This is lower than calculated from field <br />observations because one hauler was reported to have a more significant market share (62.5%) <br />than was observed in the actual Eagan field observations. <br />Duluth <br />In the city of Duluth, the average actual distance per household in Table 4-11 shows a distance of <br />112 feet. Comparing that to the field trial fuel consumption graph in Figure 4-5 below, it shows <br />a fuel consumption rate per household of 1.9 ounces, if serving households at the actual <br />distances. Table 4-11 provides the data from the field observations in Duluth. In comparing the <br />averaged observed distances in Table 4-11 for Duluth, 275 feet, the corresponding consumption <br />is 4.3 ounces per household, at averaged observed distances. By dividing the actual consumption <br />of 4.3 ounces by the ideal consumption of 1.9 shows a consumption factor of 2.26. This <br />consumption factor demonstrates that 226% more fuel was consumed by servicing only the <br />observed households in Duluth than what would have been consumed if every household were <br />serviced by that vehicle. <br />Figure 4-5 Fuel Consumption - City of Duluth <br />N <br />O <br />CL <br />5 <br />O <br />y 4 <br />CL <br />d <br />3 <br />y <br />C <br />O <br />U <br />a� <br />2 <br />3 <br />LL <br />0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 <br />LO o 0 Ln 0 Ln CDLO CDLO 0 Lr) 0 <br />N N co co V V Ln U1 (O (O f-- <br />Distance between Stops (ft.) <br />116 •Foth Infrastructure & Environment, LLC R - Analysis of Waste Collection Service Arrangements.doc <br />June 2009 <br />