Dear Planners,
As i know and i use, direct crew is the person who is directly giving progress to activity (carpenter doing formwork, rebar crew, piping crew etc). and indirect crew is person who is helping that activity (to direct crew) to give progress (scafholder, crane operator, manlift operator etc.)
I have a question. Think that, we have piping works at +10.00 high. You can execute this work in 2 ways; 1st you can install scaffhold 2nd you can use manlift(?). If we use scaffhold we can execute work more faster and less direct crew will work. The question is this; if indirect crew is helping direct crew to execute the activity like scaffhold and etc, do you assume indirect mh while you are calculating performance factor?
Exampe: 1000 meter small bore piping total [estimated unit manhour is 5 mh/m]
400 meters installed with 25 direct crew and 10 indirect crew in 8 days [10 hours per day work ]
Earned manhour is : 400 x 5 = 2000 mh.
Spent is : 25 x 10 x 8 [direct] + 10 x 10 x 8 [indirect] = 2000 + 800 = 2800 mh.
Performance factor : 2000 / 2800 = 0.71. Do you calculate like this or you do not calculate indirect hours?