how does planning engineer calculate project task duration using man hours methodology
Being Planning Engineer it is very necessary To estimate Project Duration and this Concept understanding is going to help you in every career stage either to pass Job interviews or to calculate Construction Project Duration. Estimation of each Construction Task duration will help the Planning engineer to evaluate Project Scheduling quality. Construction Industry has devised a Man-hours methodology to facilitate Planning Engineers, Schedulers, and Project Managers to calculate Project realistic duration.
- Which task will be executed in which time window of the Project Plan?
- How much Duration will be required?
- How many resources need to arrange for that task?
- How to follow the Critical Path?
How to Calculate Project Task Durations?
Construction Activities Duration Estimation is Complete Process
STEPS TO Estimate Project DURATION
While defining the Project scope of work we start to break own of project details from top to down
Whereas estimating Project Duration is Down to Top Process
1. Estimate the productive hours per day:
consideration that how many working hours per day are actively counted excluding breaks and nonproductive time.
- For Example If Your Working hours per day are 8 and it also includes Lunch Tea and prayer time then you must consider this nonproductive time and take 7 or 6.5 hours into the estimation.
2. Determine Working Crew:
Civil Engineering Scope Of Work
Task Brick Masonry
- Crew
- Foreman
- Labor
- Mason
- Scaffolder
Electrical Engineering Scope of Work
CABLES, CABLE TERMINATION & GLADDING
- Electrician
- Rigger
- Foreman
- Scaffolder
- Helper
Mechanical Engineering Scope of Work
Fabrication
- Forman
- Welder
- Fabricator
- Rigger
- Helper
- Fitter
Painter
3. Progress Phylum
You can also download this sheet from this sheet 1 link sheet 2 link to help you
- Progress Phylum sheet preparation will help you to understand that while performing certain task what are my full time resources and what resources I need partially or for any certain time period
- This Sheet will convert required effort into weightages as shown in sheet
No | Resources | % |
|---|---|---|
1 | Foreman | 5 |
2 | Mason | 30% |
3 | Helper | 57% |
4 | Scafolder | 8% |
Total | 100% |
4. Man hour and Productivity
- Man-hours
- Productivity
- Man-Hours
It is yardstick for measurement of effort. For instance, 4 Man-hour will conclude any of the following:
- 1 man working for 4 hours
- 2 men working for 2 hours
- 4 men working for 1 hour
- Standard Man-hours
It is estimated effort per unit needed to perform a job in terms of man-hours.
- Earned Man-hours
It is Quantum of work executed in terms of standard man-hours.
- Project / Budgeted Man-hours
Total number of man-hours required to execute a project.
- Actual Man-hours
It is the man-hours actually utilized to Complete Project.
- Productivity
- Work quantum that will be performed in unit time
Master Project Management with Primavera p6
5. WORK QUANTUM and Man hour
- 1- Look into Man hour sheet that how many hours required to execute unit work quantum.
- For Example 1 Ton Fabrication = 110 M hrs
- 2- Work Quantum 500 Ton
- 3- Total Required Man hours = 110*500 = 55000 M hrs
6-Convert Man hours into Working Days
- Working Hours per day 10 Hours
- Duration = Total Man hours/working hours per day
- 55000/10 = 5500 Days
- Enhance Crew from 1 Ton to 10 Ton Per day
- It will take now 550 Days that’s also big-time window for any project t single activity
- Make it 100 Ton Fabrication per day and get your fabrication done in 55 days
Waqas Ahmad
Catogries
Related Posts
Courses List
- 1 : Planning Engineer/Construction Management Using Primavers P6
- 2 : Plant Shutdown Management using Primavera 6
- 3 : Delay Analysis and Claims Management Using Primavera P6
- 4 : Microsoft Project
- 5 : Journey From Excell to Excellence
Admission Open
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.