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Scraper Worksheet Cont’d Task # 02A Page 2 of 2 <br /> <br />CIRCES Cost Estimating Software <br /> <br /> <br /> <br />Cycle Time: <br />Scraper Loading Time: 1.00 Minutes <br />Maneuver and Spread Time: 0.60 Minutes <br />Job Condition Correction: Site Altitude: 6300 feet <br /> Scraper Push Dozer Source <br />Altitude Adj: 1.000 1.000 (CAT HB) <br />Job Efficiency: 0.830 0.830 (CAT HB) <br /> <br />Net Correction: <br /> <br />0.830 <br /> <br />0.830 <br />Travel Time: <br /> Road Condition: Firm, smooth, rolling, dirt/lt. surfaced, watered, maintained 3.0 <br />Haul Route: <br />Seg # Haul Distance (Ft) Grade <br />(%) <br />Roll. Res <br />(%) <br />Total Res <br />(%) <br />Velocity (fpm) Travel Time <br />(min) <br />1 850.00 4.00 3.00 7.00 1362 0.70 <br />Haul Time: 0.70 minutes <br />Return Route: <br />Seg # Haul Distance (Ft) Grade <br />(%) <br />Roll. Res <br />(%) <br />Total Res <br />(%) <br />Velocity (fpm) Travel Time <br />(min) <br />1 850.00 -4.00 3.00 -1.00 2972 0.36 <br />Return Time: 0.36 minutes <br />Total Scraper team cycle time: 2.66 minutes <br />Adjusted for job conditions: 1,085.86 LCY/Hour <br />Selected Number of Scrapers: 2 Scraper(s) <br />Adjusted single scraper team (unit) hourly production: 1,085.86 LCY/Hour <br />Adjusted multiple scraper team (fleet) hourly production: 2,171.73 LCY/Hour <br />Unadjusted unit production/hour: 1,308.27 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br /> <br />JOB TIME AND COST <br />Fleet size: 2 Team(s) Total job time: 138.12 Hours <br /> <br />Unit cost: <br /> <br />$1.298 <br /> <br />/LCY <br /> <br />Total job cost: <br /> <br />$389,278 <br />