Project Management Bar Chart

Project Management

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.

1. Planning

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.

Includes:

~material availability and delivery time

~equipment needs (type, quantity, duration)

~labor/craft skill needs

~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

Start at south end only

Start at north end only

Start at both ends

Start in middle, etc.

Relates WRT dependency and sequencing of construction activities.

Defines work quantity for each activity.

Defines work rate (productivity) for each activity.

2. Scheduling

Basically, a schedule is a time-phased plan

Forms of schedules

~written narrative

~bar graph or bar chart

~cumulative progress curve

~ network diagram

~ time-grid diagram

Principles of scheduling

~ 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

Bar Chart and Cumulative Progress Curve

Developed by Henry Gantt (called Gantt charts sometimes).

Very widely used by construction contractors.

Bar chart example:

~(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).

3. Control

Utilize feedback information and variance analysis to control and manage the project.

Undisplayed Graphic

Calculate the Percentage Completion for Each Week (Scheduled)

End of First Week

[Activity 1]

Progress = (0.20 × 4.7) = 0.9% Scheduled

End of Second Week

[Activity 1] [Activity 2] [Activity 3]

Progress = (0.70 × 4.70 + (0.60 × 0.9) + (0.15 × 26.4) = 7.8% Scheduled

End of Third Week

[Activity 1] [Activity 2] [Activity 3]

Progress = (1.00 × 4.7) + (1.00 × 0.9) + (0.40 × 26.4) = 16.2% Scheduled

Undisplayed Graphic

Undisplayed Graphic

Undisplayed Graphic

Previous Page Page Top TOC Next Page

This document was produced using an evaluation version of HTML Transit 2