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Truck Cycle Time <br />Exchange = 0.60 min. <br />• Load = A04530 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 />" = yy0N53 min. <br />" 1.00 min. <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.(Yo) res.(%) res.(%) (fpm) (min) <br />1 1400 -4.00 3.00 -1.00 3360 0.63 <br />Haul time a 0.63 min. <br />Return route ------ <br />1 1400 4.00 3.00 7.00 2743 0.72 <br />i • <br /> <br />*lst & last seg. adj. for accel./decel. Return time = 0.72 min. <br />Total Truc k Cycle Time = 3.48 min. <br />Loader Unit Prod.= 394.91 LCY/Hr -Adj. <br />s wr nr w. n. ... v s for efficiency= 327.78 <br />nr ti ti 4 wr wr v v LCY/Hr <br />Truck Unit Prod.= 128.12 LCY/Hr - Adj. for efficiency= 106.34 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 319.01 LCY/Hr <br />Net Hourly Truck/Loader Team Production 319.01 LCY/Hr <br />Net Hourly Multiple T/L Team Production 319.01 LCY/Hr <br />B COST: <br />Fleet size <br />Unit Cost <br />1 T/L Team(s) <br />$1.296 /LCY <br />Total Job Time: 15.17 Hours <br />Total Job Cost: $6,273 <br />