Delay Analysis Method in Assessment of Concurrent Delays

Hi Dimple

A simple question that requires a large thesis to answer - in fact there are many but mine is the most reliable..

In short the only available method that can be relied upon to show concurrency is a Time Impact Analysis where BOTH Employer and Contractor's delay are analysed correctly.

You must also input neutral tasks such as Weather & Force Majeur - remebering that some of these may be Insurance risks.

Then you have to consider which jurisdiction applies - Is it Winner Takes All or Apportionment.

Only for the brave hearted to put their expert reputation on the line.

Best regards

Mike Testro

Mike, can I ask you in relation to your comment about the TIA method of delay analysis to identify concurrent delay, are you meaning TIA prospective or retrospective or both. Thanks Phil

Hi Philip - Welcome to Planning Planet.

Time Impact Analysis (SCL definition) is used for Forensic - Retrospective - Impacted analysis because that is when you have As Built data.

Best regards

Mike Testro

The short answer is the critical path method (CPM). That is to say, when two delays occur at the same time, the delay that is deemed to be causative of the delay to the whole project is that which occurs on the critical/longest path. If the two respective paths share critical/longest path status for longer than an instant (which is relatively uncommon), however, you have a tie - and so a tiebreaker is needed. The proper way for breaking the tie (favouring one delay or the other, or apportioning evenly) depends on your contract and probably, your local law.

Hi 

CPM critical path method discussion i read here, 

but if the works which supposed to be completed by 1-6-16 and contractor completed the works on 1-10-16 . 

so there are delays from 1-6-16 to 1-10-16 - 

1- what are the critical activities- activities which not completed by 1-6-16 - 

2- who is responsible for such delay appeared within period 1-6-16 to 1-10-16 - for this what method to be used . 

  a. suppose first delay appear by the employer due to stoppage of works in 17-jul-16 

  b. second delay in 9- Sep, 16 due to power issue from the authorities 

3-  there are employer delays and contractor delays and concurrent delays - how to establish

Regards

Bilal