The primary advantage of a bar chart (Gantt chart) over a CPM network for site supervisors is:
Choose the correct answer
It explicitly shows the critical path and total floats
It allows easy resource leveling across activities
It is simple to understand, prepare and update on site
It accounts for probabilistic activity durations
Correct Answer
C. It is simple to understand, prepare and update on site
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Bar charts are intuitive — each activity is a horizontal bar proportional to its duration. Site supervisors without planning training can read them easily. Their weakness: no dependency links between activities are shown, making impact analysis difficult — hence networks are used for planning while bar charts are used for monitoring.
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