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Scraper Worksheet Cont'd Task # 02A Page 2 of 2 <br />Cycle Time: <br />Scraper Loading Time: <br />Maneuver and Spread Time: <br />Job Condition Correction: <br />0.80 Minutes <br />0.60 Minutes <br />Site Altitude: 5800 feet <br /> Scraper Push Dozer Source <br />Altitude Ad': 1.000 NA CAT HB) <br />Job Efficiency: 0.830 NA (CAT HB) <br />Net Correction: 0.830 NA <br />Travel Time: <br />Road Condition: Rutted dirt, little maintenance, no water, 2" tire penetration 5.0 <br />Haul Route: <br />Seg # Haul Distance (Ft) Grade <br />(%) Roll. Res <br />% Total Res <br />(%) Velocity (fpm) Travel Time <br />(min) <br />1 650.00 0.00 5.00 5.00 1867 0.49 <br />2 850.00 15.00 5.00 20.00 424 1.82 <br />Haul Time: 2.31 minutes <br />Return Route- <br />Seg # Haul Distance (Ft) Grade <br />(%) Roll. Res <br />(%) Total Res <br />(% Velocity (fpm) Travel Time <br />(min) <br />1 850.00 -15.00 5.00 -10.00 2192 0.48 <br />2 650.00 0.00 5.00 5.00 2795 0.27 <br />Return Time: 0.75 minutes <br />Total Scraper team cycle time: 4.46 minutes <br />Adjusted for job conditions: 323.81 LCY/Hour <br />Selected Number of Scrapers: 4 Scraper(s) <br />Adjusted single scraper team (unit) hourly production: 1,295.25 LCY/Hour <br />Adjusted multiple scraper team (fleet) hourly production: 2,590.49 LCY/Hour <br /> <br />Unadjusted unit production/hour: 390.13 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br />JOB TIME AND COST <br />C <br />Fleet size: 2 <br />Unit cost: $0.876 <br />Team(s) Total job time: 39.21 Hours <br />/LCY Total job cost: $89,009.83 <br />CIRCES Cost Estimating Software