Construction Planning and Management
Economic saving of time results by crashing

Cheapest critical activity
Costliest critical activity
Cheapest noncritical activity
Costliest noncritical activity

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Construction Planning and Management
In time-cost optimization of a project, crashing is done.

Only on activities lying on the original critical path and having flatter cost slopes
On all the activities lying on the critical path
On all the activities
On original critical activities and those that become critical at any stage of crashing in the order of ascending cost slope

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