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Chapter 6

Project Planning

Web-Based Project Management

The Need

Considering that 1 to 2% of project cost is simply paperwork, multimillion

dollar amounts are expended to support communication and information

transfer. Geographically dispersed team members need to share

information, documents, drawings, and strategies. The likelihood of errors,

miscommunication, or missed deadlines is reduced through web-based

project management tools.

Most web-based project management tools enable project teams to

share all relevant project information which includes directory,

specification, correspondence, sketches, meeting notes, shop drawing logs,

field reports, requests for information (RFIs), and CAD drawings, etc.

The Technology

With the Internet acting as the ultimate communications medium, web-based project

management applications provide an instant, on-demand, secure online solution for all

team members to communicate, share documents, and collaborate. The general features

include document management, workflow analysis, schedule/calendar development and

management, messaging, conferencing, discussion function, directory service, revision

control, and project camera, etc.

Centralization of Data on Server

6.1 INTRODUCTION

The planning of a project involves the concept of an objective or facility, and a scope of

work defining the work product or deliverable. The bid package consisting of the plans

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6.1 Introduction 91

and specifications establishes the scope of work to be performed. In order to be properly

managed, the scope of work must be broken into components which define work elements

or building blocks which need to be accomplished in order to realize the end objective. The

assumption is that the project is the summation of its sub-elements.

Definition of the sub-elements is important since it determines how the project is to

be realized in the field. The sub-elements are often referred to as work packages. The

summation of the work packages can be shown in a hierarchical format called a work

breakdown structure or WBS. Figure 6.1 is an example of a WBS for a small building.

The building defined at Level I is sub-divided into major sub-systems at Level II. The

foundation work is again broken into major work activities at Level III. Similarly, the pile

cap consists of work tasks such as forming, installation of reinforcement, etc.

Development of aWBSrequires a thorough understanding of the project scope ofwork.

Experience in building is key to establishing a functional WBS. The WBS and the hierarchy

of work packages of which it is composed are used to determine the status of a project and

to manage the project from a time, cost, and quality perspective. Mentally, building a WBS

structures the work which must be physically accomplished to realize the project and its

end objective.

Planning can be thought of as the definition and sequencing of the work packages

within a given project. That is:

PLANNING = WORK BREAKDOWN + WORK SEQUENCING

Planning leads to a refinement of the Scope of Work as established in the contract

documents. A good plan reduces uncertainty and improves efficiency.

Building

Site Level II

Level I

Level III

Level IV

Level V

Foundation Structural Frame Etc.

Etc. Pile Cap Piling Excavation

Etc. Concrete Resteel Forms

Place or Set Prepare Shop

Drawings

Cut and Fabricate Deliver

Figure 6.1 Work Breakdown Structure (WBS) Example.

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92 Chapter 6 Project Planning

Develop the lnitial

Plan

Implement the

Plan

Determine Impact

of Deviations (i.e.

major or trivial)

Make Correction to

the Plan as

Required

Detect Deviation

from the Plan

Figure 6.2 The Planning/Management Cycle.

The WBS also assists in determining the amount of planning needed. That is, it defines

the level of planning required. For instance, if we are traveling toWashington, D.C., certain

major elements of the travel should be planned. If we are traveling by air we need to book

an airline ticket. We need to determine what to pack. Typically, we will need a place to

stay, so we probably will reserve a hotel room unless we are staying with friends. At a

lower level in our planning hierarchy, we must determine how to get from the airport to the

hotel. If time is critical, we may reserve a limousine to meet us at the airport. On the other

hand, we may decide to make a decision upon arrival as to whether to take a cab, a shuttle

bus, or the Washington Metro MassTransit system. In effect, the development of the WBS

and the definition of work packages is an exercise in Òthinking things out ahead of time.Ó It

provides an orderly mechanism which facilitates planning. Howdetailed and comprehensive

the WBS must be will vary with the situation and the complexity of the project.

Planning allows us to develop a framework for project execution, monitoring, and

control. This minimizes uncertainty, clarifies sub-objectives within the overall objective,

assists in establishing sequencing of activity, and helps to avoid crisis management.

Planning is, however, an ongoing task and continues throughout the life of the projectÑ

General Dwight D. Eisenhower once said ÒPlans are nothing, Planning is everything.Ó Initial

planning is inevitably impacted by events which cause changes to the plan. The success of

a project is tied to the managerÕs agility in identifying deviations from the plan and solving

the challenges precipitated by these deviations. Figure 6.2 reflects this cycle of planning in

terms of a simple flow chart. Once the WBS has been developed, it provides the framework

within which planning can proceed throughout the life of the project. It becomes the vehicle

for identifying deviations, assessing their impact, and making appropriate corrections to the

existing plan. Therefore, Òplanning is everything.Ó

6.2 DEVELOPING THE WORK BREAKDOWN STRUCTURE

Work packages are the building blocks of the Work Breakdown Structure (WBS). They

should be defined to assist the manager in determining the project status or the level of

completion of the project. One definition of the WBS is Òthe progressive hierarchical breakdown

of the project into smaller pieces to the lowest practical level to which cost is applied.Ó

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6.3 A Work Breakdown Example 93

When monitoring and controlling a project, cost and time are areas of primary interest. The

WBS is extremely useful in developing both cost and time (schedule) plans.

In establishing the WBS, the following guidelines need to be considered:

1. Work packages must be clearly distinguishable from other work packages.

2. Each work package must have unique starting and ending dates.

3. Each work package should have its own unique budget.

4. Work packages should be small enough that precise measurement of work progress

is possible.

For example, in Figure 6.1 one work package at Level IV defines work associated with the

installation of reinforcing steel in a pile cap. This work package is (1) clearly defined and

separate from other work packages, (2) has a starting and ending date, and (3) has a cost

budget which is unique and is small enough for accurate progress measurement. The work

packages at Level V become more generic and more difficult to distinguish as unique. For

instance, tasks such as cutting and setting steel are very short and assigning a unique budget

to this level of work becomes difficult. Therefore, the Level V work packages in Figure 6.1

can be viewed as sub-tasks which are pro-rated to the more unique Level IV work packages.

6.3 AWORK BREAKDOWN EXAMPLE

In order to better understand the concept of work breakdown, consider the small gas station

project for which simplified plans and concept drawings are shown in Appendix I.

In construction, the various aspects of the work that contribute to breakdown of the

project into packages relate to:

1. Methods used to place work

2. Skills needed for the work

3. Craft workers involved

4. Critical Resources (e.g., cranes, crews, etc.)

The definition of work packages can be facilitated by using four categories which help in

establishing a level of uniqueness. These categories are:

1. Location or Area within the Project (e.g., foundation Ð pile cap)

2. Material Type (e.g., concrete, resteel, etc.)

3. Method of placement (e.g., excavation)

4. Organizational Resources Required (e.g., labor and equipment needed)

In the gas station project, the construction requires a foundation for the load bearing walls.

The foundation can be thought of as a location (as well as a structural support system). The

LOCATION or AREA of the work is a physical part of the construction. That is, one can

walk up and touch the location of the package. A work package defining the floor slab in

SectionAon the 3rd floor of an academic building is something we can locate and physically

touch in the completed facility. The fact that the slab is concrete (i.e., rather than wood or

metal) is another important parameter. It has implications from a procurement, as well as

from a placement and work content point of view.

LOCATION and MATERIAL TYPE will influence the method of placement or installation.

TheMETHODOF INSTALLATION and the material type will determine the human

skills and equipment resources needed for installation. The method of placement or installation

dictates the TYPES OF RESOURCES required, thus differentiating one package

from another. For instance, in one case we may be placing concrete using a concrete pump,

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94 Chapter 6 Project Planning

where as in another situation the concrete may be transported using concrete buggies. In

each case, labor and equipment resources, the budget, and the productivity of the concrete

placement will be different.

6.4 WORK PACKAGES FOR THE GAS STATION PROJECT

LetÕs develop a set of work packages and a WBS for the gas station construction. First,

locations which are work package related will be determined. As noted above, the building

foundation can be considered a location. It would be important to know whether the scope

of work includes the parking and service area surrounding the station. For the purposes of

this exercise, we will assume it is within the scope of work. LOCATION work packages

would be as follows:

1. Parking and Service Area

2. Foundation

3. Building Walls/Structural Panels

4. Building Roof

5. Interior Floors/Slabs (separate from the Foundation)

6. Interior Finishes

7. Exterior Finishes

8. Electrical Systems

9. Mechanical Systems

Adding the category ofMATERIAL TYPE expands the number of work packages as shown

in Table 6.1. Although this listing is, by no means, complete, it indicates the level of detail

which must be considered even in a relatively small project (when only two levels of

hierarchy are defined).

If mechanicalwork is expanded to cover location, material type, methods and resources

the following partial list of work packages would be added to the hierarchy of the WBS.

1. Excavation of Waste Water System

2. Drainage Tile installationÑWaste Water

3. Septic Tank installation

4. Fresh Water lines (piping)

5. Sinks, basins, toilets installation

6. Hot Water System installation

7. Pneumatic Air System installation

Table 6.1 Work Packages for the Gas Station Project

(1) Earthwork for Parking and Service

(P&S) Area

(2) Asphalt Paving for P&S Area

(3) Concrete Hardstands in P&S Area

(4) Concrete Foundations

(5) WallsÐMasonry Bearing Walls

(6) WallsÐPrefab Metal Sandwich Panels

(7) Interior Concrete Floors

(8) Built-up Roof

(9) Roof Gutters/Drainage

(10) Interior Built-ins (e.g., Cabinets, etc.)

(11) Interior Painting

(12) Interior Drywall

(13) Interior Doors, Frames, Hardware, etc.

(14) Interior Floor Coverings (if required)

(15) Exterior Brick Faücade

(16) Exterior Glazing

(17) Exterior Doors and Signage

(18) Mechanical Systems

(19) Electrical Systems

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6.5 Determining Sequence of Work Packages 95

Figure 6.3 shows a work breakdown structure based on this partial development of work

packages.

6.5 DETERMINING SEQUENCE OF WORK PACKAGES

Having broken the work in to work packages, activities which facilitate time management

and control can be defined and logically placed in sequence. The word ACTIVITY is

generally used when discussing time control or scheduling to refer to the work elements

which appear in the schedule in their expected sequence or logical order. As mentioned

in Chapter 1, the word ÒtechnologyÓ implies that operations have a logic or sequence. An

understanding of this logic is a key to successful project management.

In arranging the work package sequence for time control, the criteria of (1) location

(2) material (3) method and (4) required resources developed in Section 6.3 must be reconsidered

from the perspective of how these criteria impact the order or sequence of work

activities. For instance, location can determine sequence. It is normal to complete the structural

frame for the 1st floor of a building before beginning work on the structural frame

for the 2nd floor. This could be considered a physical constraint since the 2nd floor frame

cannot be supported until the first floor frame is completed. Such physical constraints or

physical logic are common and characteristic of construction operations (e.g., the floor must

be complete before installing the floor covering, etc.). Locational aspects of a work package

may, therefore, determine its sequence in the overall project.

In some cases, physical requirements do not dictate order or sequence. For instance, in

finish work relating to a rest room, fixtures such as sinks, commodes and partitions must be

installed. Wall and floor finishes such as ceramic tiles must also be completed. Since there

is no physical constraint, it is a management decision as to whether the walls and floors are

completed first or the fixtures are installed first. In this case, the situation is controlled by

a management decision (e.g., the fixture subcontractor is available first and is instructed to

proceed) and the sequence is driven by management logic.

Again, consider the small gas station project. A preliminary sequencing of the work

packages is shown in Figure 6.4. One activity is defined to address mobilizing men, material,

and machines to the site and preparation of the site. Then the locational or areawork packages

are ordered in sequence starting with the foundation and completing with the interior and

exterior finishes and the mechanical and electrical systems which can be worked on at the

same time (i.e., in parallel). This preliminary sequencing provides the framework for a more

detailed schedule development to be presented in Chapter 7.

Following the preparation of the site, the footers and pier foundations are to be poured.

After the footers and pier foundations have reached sufficient strength, the building structure

is erected. It should be noted that, in this case, the floor slabs of the service bays, the show

room, and the office areas as well as the utility room and toilets are not poured until the

building structure is erected. Since the foundation consists of a ÒringÓ footing1 and individual

piers to support walls and columns, etc., the building shell and roof can be completed prior

to casting the various floor slabs throughout the building. When the roof is completed and

the building is Òclosed in,Ó work inside the building can proceed without concern for the

weather.

As a more detailed time plan (i.e., schedule) is developed, consideration must be given

to other time consuming activities which are not necessarily identified using the location,

material, method, and resource criteria.

1. Administrative actions such as inspections, permit issuance, noise constraints, etc.

must be considered in developing the time schedule logic.

1 A ring footing is a footing that supports the periphery of the building.

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Gas Station

Electrical

Systems

Interior Floors Exterior

Finishes

Interior

Finishes

Interior Built-ins Painting

Floor Coverings

(As Required)

Drywall Install Doors, Frames,

Hardware, etc.

Glazing

Brick Facade Doors and

Signage

Pneumatic Air

System

Hot Water

System

Sink, Basins,

Toilet, Etc.

Fresh Water

Lines

Septic Tank Tile Drainage

Lines

Excavation of

Waste Water

System

Mechanical

Systems

Building Roof

Roof Gutters Built-up Roof

Building Wall/

Shell

Foundation Packaging &

Service Area

Prefab Metal

Walls

Masonry Walls Concrete Areas Asphalt Paving P & S

Earth Work

Figure 6.3 WBS for Gas Station Project.

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