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Scraper Worksheet Cont’d Task # 03A Page 2 of 2 <br /> <br />CIRCES Cost Estimating Software <br /> <br /> <br /> <br />Cycle Time: <br />Scraper Loading Time: 0.90 Minutes <br />Maneuver and Spread Time: 0.60 Minutes <br />Job Condition Correction: Site Altitude: 4700 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 1250.00 5.00 3.00 8.00 1381 0.97 <br />Haul Time: 0.97 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 1250.00 -5.00 3.00 -2.00 2938 0.50 <br />Return Time: 0.50 minutes <br />Total Scraper team cycle time: 2.97 minutes <br />Adjusted for job conditions: 632.14 LCY/Hour <br />Selected Number of Scrapers: 2 Scraper(s) <br />Adjusted single scraper team (unit) hourly production: 632.14 LCY/Hour <br />Adjusted multiple scraper team (fleet) hourly production: 1,264.28 LCY/Hour <br />Unadjusted unit production/hour: 761.62 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: 27.68 Hours <br /> <br />Unit cost: <br /> <br />$1.122 <br /> <br />/LCY <br /> <br />Total job cost: <br /> <br />$39,276 <br />