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Total Float Formula:
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Total Float is the period by which an activity can shift its timing without affecting the relevant schedule completion date. It is calculated as the sum of Free Float and Slack of an Event in network analysis.
The calculator uses the Total Float formula:
Where:
Explanation: This formula calculates the maximum amount of time an activity can be delayed without affecting the project completion date, considering both activity-specific and event-related constraints.
Details: Accurate Total Float calculation is crucial for project scheduling, critical path identification, and effective project management. It helps in determining the flexibility of activities within a project timeline.
Tips: Enter Free Float and Slack of an Event values in seconds. Both values must be non-negative numbers. The calculator will compute the Total Float by summing these two values.
Q1: What is the difference between Total Float and Free Float?
A: Total Float is the total amount of time an activity can be delayed without affecting the project completion date, while Free Float is the amount of time an activity can be delayed without affecting the early start of any succeeding activity.
Q2: Can Total Float be negative?
A: In normal project scheduling, Total Float should not be negative. Negative values would indicate that the activity is on the critical path or behind schedule.
Q3: How is Slack of an Event determined?
A: Slack of an Event is calculated as the difference between the latest event time and the earliest event time at its terminal point or node in the network diagram.
Q4: What units should be used for input values?
A: The calculator uses seconds as the unit of measurement for consistency, though any time unit can be used as long as all inputs use the same unit.
Q5: When would Total Float be zero?
A: Total Float is zero for activities on the critical path, meaning these activities have no flexibility in their scheduling without affecting the project completion date.