Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; qa_layer_9_from_layer_php has a deprecated constructor in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 3
of /home/abouaayt/public_html/aboutcivil/answers/qa-plugin/user-management/layer.php Can any one suggest me how toreduce the total float by ethical & logical way, currently i have TF is 50% project duration - Civil Engineering Technical Questions Answers - Ask a Civil Engineer
  • Register

Welcome to Aboutcivil Q&A, where you can ask questions related to Civil Engineering and receive answers from other members of the community.

2.5k questions

1.1k answers

44 comments

44.3k users

0 votes
Can any one suggest me how toreduce the total float by ethical & logical way, currently i have TF is 50% project duration
in Primavera by  
retagged by

1 Answer

0 votes

Here are some simple recommendations:

  • Activity logic: Create a closed loop schedule by having just one project start activity/milestone and one project finish one; all other activities must have at least one predecessor and one successor. Doing so will help the software algorithms to optimize calculation of free and total float and to calculate a realistic critical path.

  • Milestones: Make sure you have both major and interim level milestones in your project schedule. Doing so will force the system to optimize free and total float based on activity durations.

  • Constraint dates: in the real world, constraint dates exist (contractual, availabilities, etc...). Make sure these constraint dates are built in, as the system algorithms will optimize free and total float based on them. Constraint dates can also lead to negative total float values for activities, based on your existing activity logic.

  • Resource loaded schedule: create a what-if version and resource schedule it. The algorithms will look at your resource availabilities and use up available free and total float. If you've also included activity constraint dates, you might find negative total float values for activities that could not be automatically optimized.

  • Non Resource Loaded Schedule: float optimization will be based on the previously discussed resource availabilities, constraint dates, and closed loop activity logic.

Good luck; You've got all that you need to optimize your project schedule float values.

The one thing I missed was activity calendars. Though most of the work maybe on a 5/8 calendar, there may be some critical path activities you would work over a weekend to meet schedule deadlines.

The other thing to look for is an activity that is split over a weekend, or other non working time. For example, you have a long duration critical activity that finishes on Monday morning at 9 am. Assuming a 5/8 calender, the program is holding out the end date by two days to finish 1 hour of work on a Monday morning. Does that make sense, or would they hang around on Friday to finish it up? Besides, its just an estimate and I would probably trim 1 hour off the duration to correct it.

by  

Related questions

+1 vote
0 answers 784 views
784 views asked Dec 22, 2016 in Civil Engineering by Homi88  
  • construction

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • civil

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • engineering

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • concrete

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • reinforced-concrete
0 votes
1 answer 1.7k views
1.7k views asked Jul 3, 2015 in Primavera by mfby2k  

    Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • assignments

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • table

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • primavera-p6

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • primavera-p3
0 votes
1 answer 499 views
499 views asked Jul 1, 2015 in Project Planning & Mgmt. by mfby2k  

    Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • engineering

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • civil

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • project
...