Page 18 - Industrial Process Plant Construction Estimating and Man Hour Analysis
P. 18

Introduction xxxiii





               TABLE 2 Definitions for productivity analysis—cont’d
               Productivity  The amount of work performed in a given period. Usually measured
                            in units of work per man- hour, man-month, or man-year.
               Actual time  The time reported for work, which includes delays, idle time, and
                            inefficiency, as well as efficient effort.
               Productivity  A unit rate of production; the total amount produced in a given period
               rate         divided by the number of hours, months, or years.




                Code of accounts; tracking system for diesel power plant, fire water
             system (Tables 3 and 4)

               TABLE 3 Illustration of portion of job cost by cost code and type for erection
               of fire water system
                                          Budget
               Cost code      Phase code description   Craft       MH
               Fire water system (A14) estimate
               000000         Fire hose equipment      IW          130
               000000         Hose cabinet             IW          30
               000000         Fire water hydrant       IW          260
               000000         Extinguisher             IW          80
               000000         Mobile foam unit         IW          40
                              Direct craft man-hours               540




               TABLE 4 Illustration of portion of tracking report for erection of a fire water
               system
                          Phase code                  Percent    Productivity
               Cost code  description  Budget  Actual  complete  (A/E)
               Fire water system (A14) estimate
               000000     Fire hose   130     125     100.00%    1.04
                          equipment
               000000     Hose        30      31      100.00%    0.97
                          cabinet
                                                                     Continued
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