Construction Project Management
Planning & Scheduling
Bar Charts
Building a CPM Schedule
Networks & Logic
CPM Scheduling
Logic Relationships & Precedence Networks
Progress Updating

Defining The Critical Path

There is constant debate about the definition of the Critical Path. But let it become clear as Saleh defines what the Critical Path is and how to discover it.

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Now, we have taken an example on the critical path method. We've gone through the forward pass, backward pass. We calculated the completion date or the calculated completion date for the project. We need to pause now and do some definitions, look at some definitions. The first definitions we wanna talk about, and in fact, it is the most important one, is the critical path itself. What is the critical path? It is the longest continuous path in a network from start to finish. It represents the summation of durations of activities and lags along that path, taking in consideration calendars, constraints, resources, and other impacting factors.

Now, I need to explain a couple of things that you see here, footnotes in your slide. First of all, the word continuous here. And continuous meaning whether there is...it doesn't mean continuous work, it's continuous path. So, if there is a lag, we go through the lag, even though there is no work, if there is a non-work day, a holiday, it's continuous path, all right? The second thing is the summation. It's not the arithmetic summation, because as we will see in the overlapping activities, it's not the duration of A plus B. It's whatever A and B, together, take in terms of time.

Some people like to define the critical path as the shortest way to get the project done. Although it's true, but I don't like that definition ...

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