Manhour Expenditure Curves Engineering

MANHOURS

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REPORT PERIOD "

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REPORT PERIOD "

TOTAl ACTUAL

REVISED ESTIMATE

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PROCESS ACTUAL PROCESS DESIGN PLAN

REVISED ESTIMATE

POTENTIAL

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ORIGINAL PIPING PLAN

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PROCESS ACTUAL PROCESS DESIGN PLAN

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TIME

(PROJECT DURATION)

PROJECT

DATE

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Figure 7-14. Construction Indirect Labor Manhours.

Figure 7-14. Construction Indirect Labor Manhours.

escalated in month 13. A significant overrun was evident at that time. The hourly rate is also shown to be overrunning.

Indirect labor covers hourly paid labor not directly involved in the construction of permanent facilities; indirect activities covers all non-productive and lost time and can include the following:

• Erection of temporary buildings, roads, etc.

• Erection and maintenance of temporary utility systems

• Site cleanup during and after construction

• Materials handling and preservation (warehouse operation)

• Scaffolding

• Equipment maintenance

• Lost time (weather, union allowances, training, etc.)

• Welder proficiency tests and other training programs

• Tea breaks, walking time, waiting time, etc.

This same technique can, of course, be used for direct labor manhours.

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