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Reasonableness of a Baseline Schedule

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Roger Gibson
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Stuart, raised a very important issue, in the As-Built Critical Path thread, i.e. the ’reasonableness’ of the baseline schedule. Too often, I have seen eot/delay submissions where the baseline used has not been verified or corrected for errors, e.g. activity durations too long or short and illogical activity links. Obviously an incorrect baseline will give incorrect or unreasonable results.

Roger Gibson

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Stuart Ness
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I don’t think it is a matter of approach – as Uri suggests – I think it is a matter of what the obligations of the parties are under the specific Contract terms.
If the deliverables are subject to acceptance by the Owner (or his Representative), then the giving of such acceptance is an obligation of the Owner (or his representative) once the specific deliverable is acknowledged as being acceptable. Failure to provide such acceptance by the Owner would make the acceptance to be “deemed” to be so by the Owner.

If the Contract does not require specific acceptance, but merely to be provided “For Information Only”, the Contractor is not obliged to take on board the Owner’s comments.

It isn’t a case of being with the pitbulls or the pussies; it’s a case of what the Contract requires and carrying out these obligations (or not, as the case may be!)



Stuart

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Martin Corkill
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Programme durations and sequences should be tied back to project method statements - thereby giving a method of determining whether the durations were reasonable or not.
Don MacDonald
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Uri,

I understand what you’re saying and there have been many times when I’ve been on both sides of the fence. In some cases I have taken sides with a contractor in order to explain how an owner has been unreasonable. Other times I’ve taken the owners side of the dispute in order to ensure that their best interests are being considered.

You’re right that it’s simply a matter of approach.

I guess that in some cases what I see is an "Owner Knows Best" approach and this is not always the case. I’ve had schedules submitted that I thought were highly unlikely yet an experienced and motivated contractor has managed to get them done. Was the temptation to reject the schedule there? Very much so.

My concern is that (and probably better posted in another thread if we’d like to discuss is) if the onwer feels that a schedule is unlikely and rejects it, yet the contractor is convinced that this same schedule can be accomplished then where does the due diligence of pointing out concerns regarding the schedule end and interruption begin?

As I said in my earlier message, I think it’s important to treat the contracting industry as knowledgeable people in their field and if, after discussing and pointing out potential unreasonable schedules, a contractor still wishes to proceed based on this schedule then I think it’s up to the owner to document how and why this unreasonable schedule could not or has not been met.

The keyword here is unreasonable. A schedule that is downright impossible due to clear conflicts is another story.

Best Regards,
Don


Uri Shachar
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Don,

It’s a question of approach - do you see yourself standing on the same side of the fence WITH the Contractor - and the pitbulls (RISKS TO THE PROJECT) on the other side, or do you see yourself and the Contractor in the opposing sides of the fence (with the Contractor being the pitbull)???

But seriously, for the sake of the project and in order to act fairly towards the contractor you have to decide one way or the other.
Don MacDonald
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Hello Uri,

I agree that it is a "hands off" approach to the situation. This being said, my concern on either "accepting" or "rejecting" the Critical Path Schedule is that if formally accepted you’ve basically bought in to the schedule that has been submitted. Thus you’ve possibly agreed to an unreasonable schedule and set yourself up for a claim based on unreasonable timeframes, production rates etc...

On the other hand, by rejecting the schedule outright you leave yourself open to the thought that you as the owner or representative of the owner have forced the Contractor into a schedule of your choosing and again have set yourself up for a claim.

If however you take the approach that the contractor is a knowledgable person who can schedule his/her own operations then the schedule becomes the contractor’s risk and not the owners. It’s important to question any schedule that seems unreasonable but only if it appeared completely off the wall impossible would I be comfortable rejecting it outright.

By questioning the validity of certain portions of the schedule such as the incorporation of timing constraints, environmental constraints, reasonable production rates and equipment/labour resources etc. etc. etc. you can still leave the risk of a poorly planned schedule in the hands of the scheduler and not take responsibility for directing the work schedule.

Sometimes it’s better to be on the fence then in the yard with the pitbull.....
Uri Shachar
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Hi Don,

You are representing a typical Principal approach of sitting on the fence and not commiting to a clear view regarding the reasonableness of the Contractor’s Programme.

This approach increses the uncertainty in which the Conractor operates, and is also discouraged by the SCL in their famous Protocol.

under most types of standard Contracts the Principal or his repersantative (the Super) must either accept or reject the Contract Programme within a prescribed period.
Don MacDonald
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As a Contract Administrator in Ontario Canada it is interesting to see that the problems we face here are problems that are faced all over. The term "reasonable schedule" comes up frequently in highway construction and from the view of a person who represents the owner 95% of the time I try never to either "accept" or "reject" the contractors schedule. When faced with what I consider to be an "unreasonable" schedule that has been submitted as the contractors as-bid idea on how they intend to build the project, it may be better to question how the contractor intends to actually bid this seemingly unreasonable schedule. For example, if a contractor were to state in the as-bid or baseline schedule that they intended on performing 100,000 m3 of earth excavation in a mere 5 days then the question would be asked as to how many excavators, trucks etc..the contractor intends on utilizing to achieve this inflated production rate. If after committing to an equally unreasonable amount of equipment to achieve the unreasonable production the contractor does not follow through it would be extremely difficult for that contractor to claim a delay based on the schedule since in reality the unreasonable production rate was never achievable. As such, I am neither responsible for accepting or rejecting the contractors schedule, only for questioning how they intend to perform it and monitoring whether the commitments they have made under the schedule have been followed through on.
Stuart Ness
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Uri,
I think that you are only half-right with regard to a Schedule being unreasonable. As you yourself pointed out, a schedule that turns out to be unreasonable may well have looked reasonable at the start of the project. I think it would be very strange for the parties to intentionally and knowingly agree to an “unreasonable” schedule at the outset.

As to the Contract Sum, the element of “reasonableness” will usually prevail: the Contractor will agree to a Contract Sum because he believes that it reasonably represents the extent and nature of the risks that he has to take, and the Owner/Client will agree to it because he will consider that it is a reasonable amount to pay for the completed project. Consequently – and as you reasonably pointed out – the Contract Sum is fixed whether it turns out to be unreasonable or not (except where it may be fraudulent!)

Cheers,

Stuart

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Stuart Ness
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Hi Maria,
That just confirms that we all be careful about the terms that we use and we shouldn’t assume that the same term - such as "As-built Critical Path" - means the same thing to all people.

Cheers,

Stuart

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Roger Gibson
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Uri,

Good point. It depend on the circumstances.

A contractor would use either the ’agreed’ schedule or a ’corrected’ schedule, whichever gave hom the best advantage. Similarly, an employer would use the opposite.

If the dispute was in the Court/Arbitration arena, and I was appointed as the Expert; then I would put forward the results of the two alternatives, as the matter of which is the proper schedule to use to quantity the delay is a contractual/legal issue on which both each party’s lawyers can put forward legal submissions

Roger Gibson
Maria Ahlberg
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Stuart
What you call a baseline I call a target-0 project. When we have started up a project, and the schedule is set for the first time, equals the baseline/target-0 project. We never alter the information in this. We use it to compare with the up to date schedule.

In parallell with this work we have a separate schedule (which we call a baseline, confusing therminology). This schedule is used when we are starting up our next project. The "baseline" I wanted to have up to date, was this "to be the next project" schedule.

I apologise for maybe confusing things even more, but it is early morning here and also "Lucia".
Uri Shachar
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I guess this is more a legal matter: What about the possibility that the parties agreed to the schedule even if it was not reasonable? the schedule might have looked reasonable at the time of execution.

I believe in other part of the Contract (for example the contract sum), if the parties agreed they are held to this agreement even if it it not reasonable (unless it is illegal etc.)
Jason Brown
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Well, I guess the first question is from which perspective are you asking?

If you’re the one producing the schedule, obviously it is encumbent upon you to regularly inspect your schedule and revise your assumptions as you go, making sure to document any significant changes. (Failure to document could prove damaging during litigation)

As the owner/client, you do bear some responsibility for vetting the schedule and raising questions on any "unreasonable" matters. You can’t go to court and say "Well, if he says he can build my tower in five days, who am I to question." Of course the burden is lessened by virtue of the fact that you don’t know the schedulers assumptions unless they are provided in a Basis of Schedule.
Stuart Ness
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Maria

To my mind a Baseline Schedule is exactly that : it is a schedule that acts as a base against which future schedules can be measured. The Baseline Schedule itself should remain intact and not be altered or updated. It is the difference between the Baseline Schedule and the As-Built Schedule that usually forms the basis of a claim for EOT; hence its importance.

Of course, the Baseline Schedule will also form the basis of progress updates, but it should in itself remain unaltered. As Jason points out it should be a “reasonable” representation of the plan to execute the work through to completion , but what should be done if – as Roger says – there are errors and mistakes in the (approved) Baseline Schedule?

We could also discuss “reasonable” but as David has mentioned, it is already Friday afternoon here in Europe!!

Cheers,

Stuart

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Jason Brown
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I would caution against trying to keep the baseline "up to date". In most cases, clients will not (should not) accept a baseline that already contains update information as they risk accepting poor performance into the approved baseline. There have been occaisions where I rejected baseline submissions for this reason alone.

Baseline schedules should be "reasonable" representations of the initial plan for the completion of work. I think it goes without saying that this will be subject to change, and can be addressed with a narrative describing and justifying the change. If reasonable, there is no compelling reason for the client to reject it. Moreover, should the schedule end up in litigation, reasonable documented changes to the baseline made during updates are typically accepted by the court. It is understood that we are only human and will sometimes need to change our mind "once better information becomes available."
David Bordoli
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And I am not sure if, apart from outrageously wrong durations, we can say if an activity is too long or too short, it all depends on the method and resources then all the other myriad of things that can affect activity duration. It only in hindsight that we can say, because it wasn’t completed as planned, that it was too long or too short?

The important bit, in my mind is to monitor and determine how long something did actually take. On an ‘accurate programme’ (whatever one of those is) I would expect there to be ‘swings and roundabouts’ when comparing planned with actual activity durations. Only when it is all swings or all roundabouts can we start to ask went wrong and if it’s a consistent going wrong or going well at least we can use that knowledge for forecasting (or predicting!). This means that, so long as we regularly monitor and analyse our programmes even those with durations that are too long or too short can be of use.

Its Friday and I don’t think I have articulated myself very well. I think we are coming up with some philosophical questions here that hopefully someone will address in their PEO papers – and that there is a forum to discuss, constructively criticise and support.

David
Maria Ahlberg
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With a baseline schedule -do you mean the schedule you use to build a schedule in the beginning of a new project? (instead of making a schedule from scratch)

If so, even a basline schedule has to be up to date, otherwise you loose to much time adjusting it in the bebinning of a project.
cheers
Stuart Ness
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Roger,

In tying your comments to an even earlier thread about obtaining the approval of a Baseline Schedule, I would also add that just because a Baseline (or any other) Schedule is “Approved”, it doesn’t make it right!!

Many times I have had to adjust an Approved Baseline Schedule for delay purposes when the schedule has been incorrect, but nevertheless Approved!

Cheers,

Stuart

www.rosmartin.com