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<br />Truck Cycle Time <br />Exchange = 0.60 min. <br />Load - y2~120 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 />" = 2.12 min. <br />= 1.00 min. <br />Road cond. descr.:Rutted dirt road, little/no maint., 1-2" tire penetration <br />Haul route <br />Road Length Grade Rolling Total Velocity Travel time* <br />seg. # (ft) res.(%) res.(%) res.(%) (fpm) (min) <br />1 2400 0.00 5.00 5.00 1695 1.56 <br />Haul time = 1.56 min. <br />Return route ------ <br />1 2400 0.00 5.00 5.00 3200 0.97 <br />n <br />U <br />*lst & last seg. adj. for accel./decel. Return time = 0.97 <br />Total Truck Cycle Time = 6.25 <br />Loader Unit Prod.= 234.38 LCY/Hr - Adj. for efficiency= 194.53 <br />Truck Unit Prod.= 101.93 LCY/Hr -Adj. for efficiency= 84.60 <br />Optimal number of trucks per loading unit : 2 <br />Selected number of trucks per loading unit: <br />Hourly truck team production <br />Net Hourly Truck/Loader Team Production <br />Net Hourly Multiple T/L Team Production <br />B COST: <br />Fleet size 1 T/L Team(s) Total Job Time: <br />Unit Cost 50.908 /LCY Total Job Cost: <br />169.20 <br />169.20 <br />169.20 <br />min. <br />min. <br />LCY/Hr <br />LCY/Hr <br />2 <br />LCY/Hr <br />LCY/Hr <br />LCY/Hr <br />10.95 Hours <br />51,682 <br />