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Scraper Worksheet Cont’d Task # 008 Page 2 of 2 <br /> <br />CIRCES Cost Estimating Software <br /> <br /> <br /> <br /> <br />Cycle Time: Scraper Loading Time: 1.00 Minutes <br />Maneuver and Spread Time: 0.60 Minutes Job Condition Correction: Site Altitude: 5200 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 Travel Time: <br /> Road Condition: Hard, smooth, stabilized, surfaced, watered, maintained 2.0 <br />Haul Route: <br />Seg # Haul Distance (Ft) Grade <br />(%) <br />Roll. Res <br />(%) <br />Total Res <br />(%) <br />Velocity <br />(fpm) <br />Travel Time (min) <br />1 4000.00 1.00 2.00 3.00 2800 1.71 Haul Time: 1.71 minutes Return Route: <br />Seg # Haul Distance (Ft) Grade <br />(%) <br />Roll. Res <br />(%) <br />Total Res <br />(%) <br />Velocity <br />(fpm) <br />Travel Time (min) <br />1 4000.00 -1.00 2.00 1.00 2963 1.47 Return Time: 1.47 minutes Total Scraper team cycle time: 4.78 minutes <br />Adjusted for job conditions: 604.27 LCY/Hour <br />Selected Number of Scrapers: 6 Scraper(s) <br />Adjusted single scraper team (unit) hourly production: 1,812.80 LCY/Hour <br />Adjusted multiple scraper team (fleet) hourly production: 1,812.80 LCY/Hour Unadjusted unit production/hour: 728.03 LCY/Hour <br />Optimal Number of Scrapers per push dozer: <br /> <br />JOB TIME AND COST Fleet size: 1 Team(s) Total job time: 22.07 Hours <br /> <br />Unit cost: <br /> <br />$2.543 <br /> <br />/LCY <br /> <br />Total job cost: <br /> <br />$101,732 <br />