Three major phases of project management (PM):
~1. Planning -thinking, scoping, listing, organizing, identifying
~2. Scheduling -time phasing, sequencing activities, estimating durations
~3. Control -utilizing feedback, monitoring, assembling facts, accessing alternatives, making decisions
PM is as much an "art" as a "science."
Planning & scheduling are mutually dependent, are performed somewhat concurrently, and are reiterative.
Details information contributing to the construction process.
Records information in an organized format for later use and updating.
Is basis for costing, budgeting, scheduling, implementation, control and evaluation.
Determines what has to be done and how it will be done.
~material availability and delivery time
~equipment needs (type, quantity, duration)
~accounting for all "givens" (weather, location, time to complete work, market conditions, etc.)
Divides project into construction activities
Considers construction methods and strategy
Examples: Long highway going north-south
Relates WRT dependency and sequencing of construction activities.
Defines work quantity for each activity.
Defines work rate (productivity) for each activity.
Basically, a schedule is a time-phased plan
~ establish a logical sequence of operations
~ do not exceed available resource capabilities
~ maintain continuity of operations
~ arrange for feedback of actual performance
~ control project activities (especially critical path) early
~ update schedule periodically
Developed by Henry Gantt (called Gantt charts sometimes).
Very widely used by construction contractors.
~(See figure) - Note the schedules and actual construction progress bars.
Schedule's cumulative progress, "S-curve":
~(See figure) - Note curve is based on schedule's progress.
Bar chart with "S-curve" with actual progress bars and S-curve (see figure).
Typical construction progress, "S-curve" (see figure).
Utilize feedback information and variance analysis to control and manage the project.
Progress = (0.20 × 4.7) = 0.9% Scheduled
[Activity 1] [Activity 2] [Activity 3]
Progress = (0.70 × 4.70 + (0.60 × 0.9) + (0.15 × 26.4) = 7.8% Scheduled
[Activity 1] [Activity 2] [Activity 3]
Progress = (1.00 × 4.7) + (1.00 × 0.9) + (0.40 × 26.4) = 16.2% Scheduled
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