How to display Multiple Critical path in Primavera P6

In Primavera, when we filter critical path, it only show 1 critical path. In complicated project, we might need to show some more “near critical” path.

I will show you how to do it.

We have a simple project like this:

How to display Multiple Critical path in Primavera P6 - 1

Press F9 – Click on Option

How to display Multiple Critical path in Primavera P6 - 2

Click on “Advanced” tab, Check “Calculate multiple float paths”.

In “Display multiple float paths ending with activity”, select the last activity.

Choose number of paths you want to display. For example : 2 path.

How to display Multiple Critical path in Primavera P6 - 3

Click Close and Schedule.

How to display Multiple Critical path in Primavera P6 - 4

Right click on activity table, click on Group & Sort

How to display Multiple Critical path in Primavera P6 - 2

Choose Group By “Float path” and click OK

How to display Multiple Critical path in Primavera P6 - 6

Now Primavera will show you 2 critical path :

  • Path 1 : A D F H
  • Path 2 : A B C H

How to display Multiple Critical path in Primavera P6 - 3

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Author: Khuong Do

Khuong Do is a Project Planner in Civil, Transportation and Oil & Gas Industry. He has worked as a Primavera Consultant Specialist since 2006 . He holds a Civil Engineering degree and a Bachelor of Information Management System. Now he is working in Petronas RAPID project, one of the biggest Refinery and Petrochemical complex, in Pengerang – Malaysia.

13 thoughts on “How to display Multiple Critical path in Primavera P6”

  1. yes , its working the floats paths, if you then add in the group and sort “WBS” you can actually then identify the area that the path goes through, you can then assess each area.

    if you are trying to do a recovery schedule and working in conjunction with the strategy and project team, you work through this to try and minimise the impacts.

    remember you have done this from a “clean” new project as a demonstration, it be becomes more complex after a few updates and when there are sectional completion dates and constraints within the program,

  2. That’s ok, but it doesn’t work for me. It may be because I have a programme that is in mid-project with lots of updates in the past. I have scheduled, using the Longest Path Option and then, on the advanced tab using the process described above. I calculated a total of five float paths.
    When I reviewed the results I find that the Longest path, which I would expect to be contained entirely in Float Path 1 (as described in this blog), is actually spread across float paths 1 to 5. In fact, there are two activities in the longest path which are not classified in the float paths 1-5.
    I have looked at this several times before with different projects but come up with the same result every time.
    Any ideas?

      1. Hi and sorry for asking the same question again, but refer to your reply why I should use the free float option for projects which have actual dates.

      2. Hi,
        For project which has actual data, when you identify critical path based on Total Float, it may not be corrected.
        Using Free Float in this case will give you accurate result.
        For now I don’t have any example to prove it. But may be one day when I have one, I will post it 🙂

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