Estimated completion time

GOOD PLANNING CLIVE, THAT’S THE ANSWER TO THIS QUESTION AND OF COURSE THE OTHER SUMMARISED BIT BIT FROM SAKAMURA... FROM MALASIYA.



OR THE VERY SUMMARISED: EXPERIENCE & EXPOSURE - WHICH WILL SHOULD GIVE YOU ALL THE RATES & TIMESCALES NEEDED TO COME UP TO COME UP WITH AN ESTIMATE.

Here here clive

i think client always imposed completion of the project during tender stage and normally the contractor will schedule the projet to complee within the time imposed by the client in that way chances to win the job is higher. in reality during construction contractor realizes that the time given is too short and endup of applying for eot.

so any comment?

regards

hi,



Sometimes it sad to say that by the time a planner goes to work on a schedule, the planned start and finish date is already approved in the contract. There’s no way he can do about it but to maximize as much as possible the alloted duration based on the contract.



Regards,



Rolyn

EXPERIENCE .............. AND EXPOSURE ........

Hi Clive,



In the planning engineering way, the approach in estimated completion time is reasonable.



In reality, client do have the final say on the project completion time.



Some project duration during the tender stage maybe unrealistic, but at the end of the day, what project duration agree and stipulated in the contract is an obligation of the contracting parties.



Cheers

Hi Mr Zhang,

If u were contractor, 100% agreed, but for client maybe they have to think The best date to Come out with the product. The best date is when the product price at that time rising Up.

the completion time highly depends on the requirements of the client( time & budget),so there is no such a formula

use production rate per square meter and apply to the design u can get:

a. estimated resource

b. estimated manhours

c. estimated cost

d. estimated scedule



this production rate, u can extract from previous project and to get good productivity, u have to analyse closeup report(lesson learn)...if u have.

Steve,



As for highrise building:

1) Get the productivity for one floor i.e. for structural works. Use this productivity rate and calculate the overall structural completion date.

2) Check when the contarctor can start the M&E and Architectural Works. The contractor shall be able to complete the work approximately six months after the structural completion date (depend on size of the project).

3) Then calculate the duration for External Works, Final Cleaning and Hand Over.



HTH.

Hi Steve,



May I suggest: A) Strategy + Practicality + A lot of Prayers....



You said Estimated... that’s a GUESS...



If you want it accurate...You measure it. Use any machine.





regards,



Edgar

Hi Steve,



There is no such things as simple formula in arriving at estimated completion time.



The danger of using simple formula is the consequence of your professional reputation.



In my younger days, i did hear a lot of old folks guessing the estimated completion time base on their previous projects experience and interpolating those experiences with the projects at hands. They just remains guess. There is no substitute to hard work and engineering approach to arrive at estimated completion time.



I hope this will help you going somewhere



Cheers,



Charlie

I had a quick look at the APM’s EV Guidlines and it gives the following equation:



Forecast Completion (In weeks from original project start) = Original Completion/SPI.



It’s also worth looking at Appendix D of that document.



I make no comment on the validity of these formulae.

Haliho,

The reason for the risc analisys that nobody can be sure. Formerly the fortune tellers did the job but we became modern and the planners got this thankless task. Steve, an advice. Use as much Finish to Start connection as You are able and when the project ongoing and whenever You get the resources and the workplace go paralel. In that case, MAYBE (it is a big maybe) You can get the originally estimated dates (or a more or less near one).

Best Regards

Katalin