Economics of Shipyard Painting Phase III Earlier Recognition of Cost Variances.

摘要

Typically, Paint Shop supervision does not have tools available to compare shop performance to the budget nearly the end of a contract. The lack of information required for recognizing causes of low productivity results in cost overruns that cannot be explained. The purpose of this study was to develop a system for a Paint Department which could provide shop supervision with timely information concerning cost performance. Three areas were investigated in Phase III: Lost Time, Abnormal Conditions, and Hotwork Identification. Lost Time occurs when a worker is physically ready to perform the work defined by the work order, but must wait for some event to occur before work can be started. Abnormal conditions are those factors which hamper productivity and drive costs. Hotwork Identification was found to be important in quantifying the amount of rework resulting from hotwork not completed before blast and paint.