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Truck Cycle Time <br />Exchange = 0.60 min. <br />• Load = 44.1530 min. <br />Maneuver & dump' = 1.00 min. <br />Travel Time (haul & return): <br />Sheet 3 of 3 <br />Adj. for altitude = 0.60 min. <br />~~0~53 min. <br />= 1.00 min. <br />„,..,.„„ <br />Road cond. descr.:Firm, smooth, rolling dirt/lt. surfaced road, maintained <br />Haul route <br />Road Length Grade Rolling Total Velocity Travel time* <br />seg. # (ft) res.(%) res.(%) res.(%) {fpm) (min) <br />1 2000 -4.00 3.00 -1.00 3360 0.82 <br />Haul time = 0.81 min. <br />Return route ------ <br />1 2000 4.00 3.00 7.00 •2743 0.95 <br /> <br /> <br />*lst & last seg, adj. for accel./decel. Return time = 0.95 min. <br />Total Truc k Cycle Time = 3 88 min. <br />Loader Unit Prod.= 394.91 LCY/Hr -Adj. for efficiency= 327.78 LCY/Hr <br />Truck Unit Prod.= 114.99 LCY/Hr - Adj. for efficiency= 95.44 LCY/Hr <br />Optimal number of trucks per loading unit 3 <br />Selected number of trucks pe r loading unit: 3 <br />Hourly truck team production 286.33 LCY/Hr <br />Net Hourly Truck/Loader Team Production 286.33 LCY/Hr <br />Net Hourly Multiple T/L Team Production 286.33 LCY/Hr <br />~B-COST: <br />Fleet size <br />Unit Cost <br />1 T/L Team(s) <br />$1.437 /LCY <br />Total Job Time: 4.23 Hours <br />Total Job Cost: $1,738 <br />