composite crews in construction cost estimating

CONSTRUCTION COST ESTIMATING

COMPOSITE CREW RATES

What is a crew and how is it used in cost estimating?

CREW DEFINITION

CREW DEFINITION

MERRIAM WEBSTER DICTIONARY DEFINES A CREW

AS:

“ A COMPANY OF PEOPLE WORKING ON ONE JOB, OR UNDER ONE FOREMAN, OR

OPERATING A MACHINE”

CONSTRUCTION CREWS

CONSTRUCTION CREWS

• CONSTRUCTION CREWS ARE RESOURCES, SELECTED AND GROUPED TOGETHER FOR THE PURPOSE OF PERFORMING SPECIFIC CONSTRUCTION TASKS/ACTIVITIES.

CONSTRUCTION CREWS• CONSTRUCTION CREWS ARE

RESOURCES, SELECTED AND GROUPED TOGETHER FOR THE PURPOSE OF PERFORMING SPECIFIC CONSTRUCTION TASKS/ACTIVITIES.• CONSTRUCTION CREWS

RESOURCES:

CONSTRUCTION CREWS• CONSTRUCTION CREWS ARE

RESOURCES, SELECTED AND GROUPED TOGETHER FOR THE PURPOSE OF PERFORMING SPECIFIC CONSTRUCTION TASKS/ACTIVITIES.• CONSTRUCTION CREWS

RESOURCES:• LABOUR

CONSTRUCTION CREWS• CONSTRUCTION CREWS ARE

RESOURCES, SELECTED AND GROUPED TOGETHER FOR THE PURPOSE OF PERFORMING SPECIFIC CONSTRUCTION TASKS/ACTIVITIES.• CONSTRUCTION CREWS RESOURCES:• LABOUR• CONSTRUCTION EQUIPMENT

CONSTRUCTION CREWS• CONSTRUCTION CREWS ARE

RESOURCES, SELECTED AND GROUPED TOGETHER FOR THE PURPOSE OF PERFORMING SPECIFIC CONSTRUCTION TASKS/ACTIVITIES.• CONSTRUCTION CREWS RESOURCES:• LABOUR• CONSTRUCTION EQUIPMENT• SMALL TOOLS (OPTIONAL)

CONSTRUCTION CREWS• CONSTRUCTION CREWS ARE RESOURCES,

SELECTED AND GROUPED TOGETHER FOR THE PURPOSE OF PERFORMING SPECIFIC CONSTRUCTION TASKS/ACTIVITIES.• CONSTRUCTION CREWS RESOURCES:• LABOUR• CONSTRUCTION EQUIPMENT• SMALL TOOLS (OPTIONAL)• TEMPORARY CONSTRUCTION

MATERIALS (OPTIONAL)

TYPES OF CONSTRUCTION CREWS

TYPES OF CONSTRUCTION CREWS

• LABOUR DRIVEN

TYPES OF CONSTRUCTION CREWS

• LABOUR DRIVEN • THE PERFORMANCE OF THE CREW IS BASED ON

THE OVERALL PERFORMANCE OF THE LABOUR COMPONENT

TYPES OF CONSTRUCTION CREWS

• LABOUR DRIVEN • THE PERFORMANCE OF THE CREW IS BASED ON

THE OVERALL PERFORMANCE OF THE LABOUR COMPONENT

• EQUIPMENT DRIVEN

TYPES OF CONSTRUCTION CREWS• LABOUR DRIVEN • THE PERFORMANCE OF THE CREW IS BASED ON

THE OVERALL PERFORMANCE OF THE LABOUR COMPONENT

• EQUIPMENT DRIVEN• THE PERFORMANCE OF THE CREW IS BASED ON

THE OVERALL PERFORMANCE OF THE EQUIPMENT COMPONENT

WHY USE CONSTRUCTION CREWS

WHY USE CONSTRUCTION CREWS

• CONSTRUCTION OF A PROJECT IS A PROCESS COMPOSED OF CONSTRUCTION ACTIVITIES/TASKS WHICH ARE CAREFULLY PLANNED FOR OPTIMAL PROJECT PERFORMANCE.

WHY USE CONSTRUCTION CREWS• CONSTRUCTION OF A PROJECT IS A PROCESS

COMPOSED OF CONSTRUCTION ACTIVITIES/TASKS WHICH ARE CAREFULLY PLANNED FOR OPTIMAL PROJECT PERFORMANCE.

• WE USE CREWS IN COST ESTIMATING TO PLAN AN EXPECTED PROJECT PERFORMANCE.

WHY USE CONSTRUCTION CREWS• CONSTRUCTION OF A PROJECT IS A PROCESS

COMPOSED OF CONSTRUCTION ACTIVITIES/TASKS WHICH ARE CAREFULLY PLANNED FOR OPTIMAL PROJECT PERFORMANCE.

• WE USE CREWS IN COST ESTIMATING TO PLAN AN EXPECTED PROJECT PERFORMANCE.

• WE USE CREWS TO MEASURE ACTUAL PERFORMANCE AND IMPROVE THE PROCESS FOR BETTER FUTURE PERFORMANCE.

HOW TO PLAN FOR:CONSTRUCTION CREW COMPOSITION

HOW TO PLAN FOR:CONSTRUCTION CREW COMPOSITION

• EXPERIENCE

HOW TO PLAN FOR:CONSTRUCTION CREW COMPOSITION

• EXPERIENCE• THE BEST WAY TO DETERMINE CONSTRUCTION

CREW COMPOSITION IS FROM EXPERIENCE ON PREVIOUS PROJECTS

HOW TO PLAN FOR:CONSTRUCTION CREW COMPOSITION

• EXPERIENCE• THE BEST WAY TO DETERMINE CONSTRUCTION

CREW COMPOSITION IS FROM EXPERIENCE ON PREVIOUS PROJECTS

• COMMERCIALLY AVAILABLE DATA

HOW TO PLAN FOR:CONSTRUCTION CREW COMPOSITION

• EXPERIENCE• THE BEST WAY TO DETERMINE CONSTRUCTION

CREW COMPOSITION IS FROM EXPERIENCE ON PREVIOUS PROJECTS

• COMMERCIALLY AVAILABLE DATA• THIS IS ONLY RECOMMENDED TO USE AS A

STARTING POINT. IT SHOULD NOT BE USED IN A COST ESTIMATE, UNLESS IT CAN BE VALIDATED.

HOW TO PLAN FOR:CONSTRUCTION CREW COMPOSITION

• EXPERIENCE• THE BEST WAY TO DETERMINE CONSTRUCTION

CREW COMPOSITION IS FROM EXPERIENCE ON PREVIOUS PROJECTS

• COMMERCIALLY AVAILABLE DATA• THIS IS ONLY RECOMMENDED TO USE AS A

STARTING POINT. IT SHOULD NOT BE USED IN A COST ESTIMATE, UNLESS IT CAN BE VALIDATED.

• THROUGH CONSULTATION WITH CONSTRUCTION PROFESSIONALS EXPERIENCED IN THE TYPE OF PROJECT

HOW TO PLAN FOR:

CONSTRUCTION CREW PERFORMANCE

HOW TO PLAN FOR:

CONSTRUCTION CREW PERFORMANCE

• USE OF KNOWN (OR ESTIMATED) PERFORMANCE AND

ADJUST FOR:

HOW TO PLAN FOR:

CONSTRUCTION CREW PERFORMANCE

• USE OF KNOWN (OR ESTIMATED) PERFORMANCE AND

ADJUST FOR:

• SITE CONDITIONS

HOW TO PLAN FOR:

CONSTRUCTION CREW PERFORMANCE

• USE OF KNOWN (OR ESTIMATED) PERFORMANCE AND

ADJUST FOR:

• SITE CONDITIONS

• PROJECT LOCATION

HOW TO PLAN FOR:

CONSTRUCTION CREW PERFORMANCE

• USE OF KNOWN (OR ESTIMATED) PERFORMANCE AND

ADJUST FOR:• SITE CONDITIONS

• PROJECT LOCATION

• SUPERVISION

HOW TO PLAN FOR:

CONSTRUCTION CREW PERFORMANCE

• USE OF KNOWN (OR ESTIMATED) PERFORMANCE AND

ADJUST FOR:

• SITE CONDITIONS

• PROJECT LOCATION

• SUPERVISION

• PROJECT LEVEL OF STRESS (SCHEDULE DRIVEN

PROJECTS)

HOW TO PLAN FOR:

CONSTRUCTION CREW PERFORMANCE

• USE OF KNOWN (OR ESTIMATED) PERFORMANCE AND

ADJUST FOR:• SITE CONDITIONS

• PROJECT LOCATION

• SUPERVISION

• PROJECT LEVEL OF STRESS (SCHEDULE DRIVEN PROJECTS)

• OVERTIME/SHIFT WORK

HOW TO PLAN FOR:

CONSTRUCTION CREW PERFORMANCE

• USE OF KNOWN (OR ESTIMATED) PERFORMANCE AND ADJUST FOR:

• SITE CONDITIONS

• PROJECT LOCATION

• SUPERVISION

• PROJECT LEVEL OF STRESS (SCHEDULE DRIVEN PROJECTS)

• OVERTIME/SHIFT WORK

• RISK: EXTREME WEATHER, ECONOMIC CONDITIONS,

ENVIRONMENTAL RESTRAINS

PLANNED VS ACTUAL PERFORMANCE

PLANNED VS ACTUAL PERFORMANCE

CREW PERFORMANCE IS THE AMOUNT OF UNITS PER HOUR.

PLANNED VS ACTUAL PERFORMANCE

CREW PERFORMANCE IS THE AMOUNT OF UNITS PER HOUR. • PLANNED OR ESTIMATED PERFORMANCE IS

CALLED PRODUCTION RATE. IT IS THE AMOUNT OF UNITS WE EXPECT THE CREW TO COMPLETE IN AN HOUR, BASED ON PROJECT SPECIFIC CONDITIONS.

PLANNED VS ACTUAL PERFORMANCECREW PERFORMANCE IS THE AMOUNT OF UNITS PER HOUR. • PLANNED OR ESTIMATED PERFORMANCE IS

CALLED PRODUCTION RATE. IT IS THE AMOUNT OF UNITS WE EXPECT THE CREW TO COMPLETE IN AN HOUR, BASED ON PROJECT SPECIFIC CONDITIONS.• ACTUAL PERFORMANCE IS CALLED

PRODUCTIVITY. PRODUCTIVITY IS THE ACTUAL AMOUNT OF UNITS COMPLETED BY THE CREW IN AN HOUR.

PLANNED VS ACTUAL PERFORMANCECREW PERFORMANCE IS THE AMOUNT OF UNITS PER HOUR. • PLANNED OR ESTIMATED PERFORMANCE IS CALLED

PRODUCTION RATE. IT IS THE AMOUNT OF UNITS WE EXPECT THE CREW TO COMPLETE IN AN HOUR, BASED ON PROJECT SPECIFIC CONDITIONS.• ACTUAL PERFORMANCE IS CALLED PRODUCTIVITY.

PRODUCTIVITY IS THE ACTUAL AMOUNT OF UNITS COMPLETED BY THE CREW IN AN HOUR.

EFFICIENCY IS PRODUCTION RATE DIVIDED BY PRODUCTIVITY. WE MEASURE EFFICIENCY AND USE IT TO ADJUST PERFORMANCE.

COMPOSITE CREW RATES DATA

COMPOSITE CREW RATES DATA

USING COMPOSITE CREWS TO DEVELOP COST ESTIMATING IS THE MOST ACCURATE METHOD.

COMPOSITE CREW RATES DATA

USING COMPOSITE CREWS TO DEVELOP COST ESTIMATING IS THE MOST ACCURATE METHOD. IT ALSO SERVES THE PURPOSE OF EXTRACTING DATA FOR VARIOUS PURPOSES:

COMPOSITE CREW RATES DATA

USING COMPOSITE CREWS TO DEVELOP COST ESTIMATING IS THE MOST ACCURATE METHOD. IT ALSO SERVES THE PURPOSE OF EXTRACTING DATA FOR VARIOUS PURPOSES:

• SCHEDULING

COMPOSITE CREW RATES DATA

USING COMPOSITE CREWS TO DEVELOP COST ESTIMATING IS THE MOST ACCURATE METHOD. IT ALSO SERVES THE PURPOSE OF EXTRACTING DATA FOR VARIOUS PURPOSES:

• SCHEDULING

• CASH FLOW

COMPOSITE CREW RATES DATAUSING COMPOSITE CREWS TO DEVELOP COST ESTIMATING IS THE MOST ACCURATE METHOD. IT ALSO SERVES THE PURPOSE OF EXTRACTING DATA FOR VARIOUS PURPOSES:

• SCHEDULING

• CASH FLOW

• UNIT RATES: LABOUR AND EQUIPMENT COST, MAN-HOURS AND CREW HOURS.

COST ESTIMATING CHALLENGES

COST ESTIMATING CHALLENGES

• ACCESS TO EXISTING, VALIDATED DATA

COST ESTIMATING CHALLENGES

• ACCESS TO EXISTING, VALIDATED DATA• BALANCE THE JUDGEMENT OF ADJUSTING

FACTORS

COST ESTIMATING CHALLENGES

• ACCESS TO EXISTING, VALIDATED DATA• BALANCE THE JUDGEMENT OF ADJUSTING

FACTORS • KEEPING UP WITH NEW CONSTRUCTION

TECHNOLOGIES

COST ESTIMATING CHALLENGES• ACCESS TO EXISTING, VALIDATED DATA• BALANCE THE JUDGEMENT OF ADJUSTING

FACTORS • KEEPING UP WITH NEW CONSTRUCTION

TECHNOLOGIES• ESTIMATING A TYPE OF PROJECT FOR THE

FIRST TIME

COST ESTIMATING CHALLENGES• ACCESS TO EXISTING, VALIDATED DATA• BALANCE THE JUDGEMENT OF ADJUSTING

FACTORS • KEEPING UP WITH NEW CONSTRUCTION

TECHNOLOGIES• ESTIMATING A TYPE OF PROJECT FOR THE

FIRST TIME• OTHERS. THERE IS NO SHORTAGE OF

CHALLENGES THAT A COST ESTIMATOR HAS TO OVERCOME. LEARNING WHERE TO TURN FOR GUIDANCE IS THE IMPORTANT THING TO KNOW.

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