Construction Planning and Management
The first method invented for planning projects, was

Critical path method (CPM)
Milestone chart
Bar chart method
Programme Evaluation and Review Technique (PERT)

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Construction Planning and Management
Crash project duration is obtained by summing the

Crash durations for all the activities along the critical path obtained by taking into account the normal duration for all the activities
Normal durations for all the activities
Crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities
Crash durations for all activities

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