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Prioritization when leveling with P6

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Jean DesjardinsMember for 3 years 7 months
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Hello guys,

I am currently leveling resources in a oil refinery turnaround project.

I have about 40 heat exchangers that need to be disassembled, cleaned, inspected and reassembled.

The customer wants to reassemble every heat exchanger as soon as the inspection is completed.

However, P6 sometimes pushes the reassembly later than other exchangers activities having a lower priority level.

Did anybody experienced similar situation or any suggestion to resolve this issue?

Thanks in advance

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  1. 0
    David Kelly ·
    #1

    I have experienced this with

    I have experienced this with every client in the last 20 years who wanted to use P6 for levelling. It does work exactly as it says, but it offers no control over splittable activities, or stretching/crunching. You will probably have discovered by now that relationship lag is always a 'minimum' lag, rather than mandatory. So you cannot mandate a zero duration lag between the finish of inspection and the start of reassembly. Essentially, the levelling function in P6 is incomplete. Last time I looked, the ludicrous 'P6 Cloud' offered no improvement. Spider Project is complete here.
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  2. 0
    Hamza BENOUFIR ·
    #2

    Hi, I have my humble

    Hi, I have my humble experience in levelling with P6. It's far from ideal but as a suggestion, for each exchanger, have one single activity loaded with the hours (unique levellable resource(s)) and covering the needed duration. It could be an actual activity or just an "avatar" activity. You can link other activities with their own separate resources. But the levellable activity should drive them.


    Do the levelling as needed for the unique levellable resources only, It's the best way I have found so far. Split activities don't mean anything, and as David said, they're just a minimum lag.

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  3. 0
    Rafael Davila ·
    #3

    I am not a P6 user but read a

    I am not a P6 user but read a little about it. Maybe the issue is in the settings.

    Oracle Primavera P6 Professional Help Version 21

    Leveling priority definitions

    Projects typically contain more than one chain of activities. If two activities from different chains are ready for leveling, P6 Professional chooses one using the priorities you specify in the Leveling Priorities area of the Level Resources dialog box. Then, it sorts numbers first, then alphabetic characters, followed by blank values. If you specify no prioritization codes, P6 Professional sorts by activity ID.

    The following table defines your priority and order options for leveling resources to meet customer requirements.

    Priority

    Ascending

    Descending

    Activity ID

    Levels activities with lower IDs first.

    Levels activities with higher IDs first.

    Activity Priority

    Levels lower priority activities first.

    Levels higher priority activities first.

    Early Finish

    Levels activities with earlier, early finish dates first.

    Levels activities with later, early finish dates first

    …………

     

     

    Using Resource Leveling in Primavera P6 Scheduling Software

    Make sure your first option is Activity Priority field.

    The following reference might also help.

    P6 - Reviewing_Resource_Leveled_Schedules.pdf

    Good Luck,

    Rafael

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