Have you read the SCL’s delay and disruption protocol? I am sure you have, as the SCL website notes that it has been downloaded 38,500 times. But if not, I would recommend it to you, in particular its helpful glossary of terms, its reminder of the various formulae for calculating lost overheads and profit, and its description of various methods of delay analysis.
Unlike the first edition of the protocol, which recommended time impact analysis, the second edition (published in February 2017) does not recommend one particular method, but sets out the following six methods together with their features, and pros and cons:
- Impacted as-planned analysis.
- Time impact analysis.
- Time slice windows analysis.
- As-planned v as-built windows analysis.
- Longest path analysis.
- Collapsed as-built analysis.
What the protocol lacks, of course, is any standing either in terms of incorporation into contracts or judicial recognition. The SCL website carries a list of judicial references not just from the courts of England and Wales but also from Australia, Hong Kong and Norway. However this list is disappointingly short (just 12 cases) and a reading of the cases shows an underwhelming lack of support from judges. Continue reading