Guild of Project Controls: Compendium | Roles | Assessment | Certifications | Membership

Tips on using this forum..

(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?

(2) It's also good to get feedback when a solution is found, return to the original post to explain how it was resolved so that more people can also use the results.

Resource problem

3 replies [Last post]
adab azeez
User offline. Last seen 2 years 14 weeks ago. Offline
Joined: 19 Jul 2016
Posts: 50
Hi mates. I am working on 18 hours calender, 2 Shifts (9hrs X2). I have been asked to use 10 riggers over all. So what would be our maximum units per time and default units per time.

Replies

Zoltan Palffy
User offline. Last seen 4 days 2 hours ago. Offline
Joined: 13 Jul 2009
Posts: 3089
Groups: None

either 5 or 10 depeneding on how you set up your calendars and shifts 

Rafael Davila
User offline. Last seen 1 hour 27 min ago. Offline
Joined: 1 Mar 2004
Posts: 5229

But at times the crew composition of different shifts working on same activity is different, also it might also be desirable for shifts to have some overlap.  Easy if modeling different teams working independent of each other [at different hours] on same activity. 

2_Shifts10_Riggers

It is Volume of Work and Productivity [production rates ] what gives meaning to activity durations.

Riggers_Volume_Of_Work

If start of activity is delayed for latter on same day the work done by the different shifts is re-distributed and activity duration changes, therfore it is not a good idea to split the activity into two. 

SW0023

To make is easier to visualize say: 

  • Crew 1 shift 1 works on Monday, Tuesday, Wednesday and can do 50% of work per day.
  • Crew 2 shift 2 works on Thursdays and Fridays and can do 100% of work per day.  
  • Easier, no overlapping, shift work on different days .
  • If activity stars on Monday it will take 2 days, if activity is delayed to start on Thursday it will take one day.

PT Thomas
User offline. Last seen 4 years 51 weeks ago. Offline
Joined: 18 May 2018
Posts: 9
Groups: None

no need to change default units per time you have to change Max unit per time.

you can assing 5 rigger and 9 hr  per shift 

Also you have consider the number of activites going in parallel in order to finalize the max unit per time