(1) Explain your problem, don't simply post "This isn't working". What were you doing when you faced the problem? What have you tried to resolve - did you look for a solution using "Search" ? Has it happened just once or several times?
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Hello,
The owner is requesting a schedule that has an "access" resource assigned to each activity, but several activities will be performed from the same "access" concurrently in the same location.
We have a travelling scaffold system from which eight schedule activities will be performed more or less concurrently in a 10 WD cycle.
How would you go about assigning a this single scaffold as a resource to multiple activities that will be using it in the same location concurrently?
Thanks for any ideas!
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Leveling of Spatial Resources as if Renewable Resources will not do it :
Sample Schedule – Leveling for number of beds in offshore work as Spatial Resource
Levelling of Resources will do.
First set the Max Units / Time as 1 scaffold per day in the resource details under Units & Prices Tab.
Then, Assign the Resource to all Activites.
Set Priority Levels for every activity.
In the Levelling of Resource Pane, set Levelling Priorities, Select which Resource to Level then Level.
Hope this will Help.
I do not use P6 but Spider Project, maybe you can follow what I did within my software and translate it into yours. We model Spatial Resources using Consumable Resources. Please take a look at the following presentation, it is a simple four steps process.
For strict logic sequence the following might be a way to do it, it looks like the approach you are suggesting, good for such simple scenario.
You can download from the following link a PDF showing a sample schedule of spatial resources, each job is independent of each other, their start is not related to any other. If you delay some job automatically other will take its place as long as there are enough spatial resources available. Making changes to such simple project as to level resources by adding/deleting activity links is difficult if you delay some activities and increase/decrease availability of spatial resources for different seasons.
I'm not familiar with how to assign a spatial resource in P6. Can you explain?
The work consists of 4 independent sequences: removing, priming, installing, then painting four separate girders. The contract requires that these activities not be combined and they will all be performed from the same scaffold concurrently. Each sequence has a different total duration. The scaffold will remain at a stationary location until all four sequences are complete.
My thought was to create a LOE activity for each scaffold position that has a SS pred with the removal activity for each girder, then a FF succ with the paint activity for each girder. Then I would assign the scaffold resource to that LOE activity.
A side benefit would be that a LOE filter would show a nice summary sequence for the scaffold.
This is the approach I am considering. I have a couple days to consider additional approaches you might have while I wait for the review to come back for my next round of revisions.
Thanks for your continued interest in my issue!
Does that seem like a reasonable approach?
From - Resource types: Renewable and consumable resources
Spatial resources are required by a group of activities, rather than a single activity as renewable resources. The spatial resource is occupied from the first moment an activity from the group starts until the finish of all activities from that group. Examples are dry docks in a ship yard or a freezing machine in the Westerscheldetunnel.
Thank you for the insight! The concept of a "spatial" resource was what I was grappling with.
I'm not clear as to how I will assign one in P6, but I am going to try to use a Level of Effort to group each sequence and assign the scaffolding resource to the Level of Effort activity.
This is my interpretation of:
Does that seem like a reasonable approach?
Thanks again,
Greg
It looks like your resources are Spatial Resources that must be leveled. So common in my work (Building Construction) that it happens in almost every one of my jobs.
if you are limited by this 1 piece of scaffolding then the 8 activites need to be FS and CAN NOT be done concurrently. This would be a equipment constraint.
I agree with your definition of access. However, when creating the baseline schedule, "Access" was a generic term for the equipment that would provide access to the work area. At the time when the baseline was created (I inherited this schedule and am not its original creator), the equipment had not been designed and an equipment resource "access" was created.
The system that was designed is a 100 ft long scaffold that is dismantled and moved to the next location after all work is done at that 100 ft section.
Now I have a situation where a single piece of equipment has been assigned to multiple activities. If I assign it to all 8 activities, I am overallocating the single piece of equipment as a resource and the activities will shift when I level resources.
Would the solution be to allow an unlimited number of hours for this equipment resource and essentially make the leveling useless?
I do not undersatnd the "access" resource
access usually means having the ability to get into a certain location
Set up a milestone for access then add the 8 activities as successors to the access milestone
add an equipment resource for the traveling scaffolding and assign it to the 8 activities
Email: PPadmin@planningplanet.com
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