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

An Example for Proper Sizing of Activities

A great example that illustrates how you need to consider how many activities you will include in your schedule. The difference could make you life easy or a virtual nightmare.

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Here's an example that I want to demonstrate the importance of choosing the size. That you don't wanna choose a large size, you don't wanna choose too small. Otherwise, it will be a ridiculously large as far as the number of activities. Here's a 20-floor building. In each floor, there are 20 columns, of course 20 columns going from the foundation all the way to the roof. And in this table, we see we are counting only the concrete activities in the project. There are many thousands of other activities that have to do with excavation, with masonry, with finishing, with electrical, mechanical, but we're counting only the concrete activities.

If we use Level 2, Level 2 means we are doing the FRP, that's formwork, rebar, and placement of concrete work for the building. And that's one activity. And then we say, "No. That's too big. Let's divide it and go to Level 3." And then we say, "Okay. Let's divide it by floor." So, we have 20 floors and we have the same activity, FRP concrete work, but by floor, 3rd floor, 4th floor and so on. So, now the one activity was divided into 20 activities since we have 20 floors. And then we said, "No, no. Let's divide it further."

We have six types of concrete elements, we have columns, we have beams, we have elevated slabs, we have sheet walls, and we have stairs. So, this is FRP concrete columns, not concrete work, but concr...

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