How
to determine “Critical Path” in
a project ?
To determine “critical Path” in a project required:-
Calculation
on Individual Float and Total float need us to do the following steps :-
Critical Path Method,
Critical Path
To determine “critical Path” in a project required:-
- Knowledge in the sequence of every task until completion of the project.
- “Start” and “ Finish” date need to be pre-determine base on current available resources or planned resources for the project.
- Calculation on the Numbers of float days for individual task and also Numbers of Total float days for each of single path or series of task which formed a path.
- Forward Pass Method ( Begin from the Start date to completion date of a project ).
- Backward Pass Method ( Begin with the completion date to Start date).
- Individual Float Calculation required the Information on the Early finish date and Late finish date Which can be obtain from the step 1 and Step 2.
- Total float required us to add all of the individual float that resemble series of task to form a Path.
Individual Float calculation for a
Task.
Formula
: Individual Float = Late finish date – Early finish date
Example
1.
Individual
Float = 28.04.2014 – 28.03.2014
= 30 days
Example 2.
Individual
Float = 28.03.2014 – 28.03.2014
= 0 days
Total Float calculation for a Path.
Formula
: Total Float = Activity 1+Activity2+Activity3+Activity4
Path1
Total Float = Individual Activity 1 +
Individual Activity 2 + Individual Activity 3 + Individual Activity 5
= 0 + 0 + 0 + 0 = 0 days
Path
2 Total Float = Individual Activity 1 +
Individual Activity 4 + Individual Activity 5
= 0 + (27.04.2014 – 18.04.2014) + 0
= 0 + 9 days + 0 days = 9 days float
Critical
path
is the path that consist of activities with “0 days” of float.
Normally
critical path when show in a chart or work program it is colored in “RED”
Further reading reference:
Critical Path Methods in Construction PracticeFurther reading reference:
Critical Path Method,
Critical Path
