1. © Prof. Awad Hanna1 Productivity Measurement

2. © Prof. Awad Hanna2 Productivity Definitions and Measurements Productivity = or  Example : 0.27 Work-hours / L.F. to install PVC pipe with 2” diameter Input Output Input

3. © Prof. Awad Hanna3 Efficiency =  Earned Work hours : The work hours that should have been spent (estimated)  Expended Work hours : Actual Work hours expended Productivity Definitions and Measurements Earned Work hours Expended Work hours

4. © Prof. Awad Hanna4 Productivity Analysis Selected Activity In Progress Selected Activity In Progress Workhours Quantities Productivity Calculations Productivity Calculations Performance Evaluation Performance Evaluation Workhour Forecast Workhour Forecast Analysis of Trends Analysis of Trends

5. © Prof. Awad Hanna5 Measurement Method (Output) 1)Supervisor Opinion 2)Units Complete 3)Level of Effort a - Incremental Milestones b - Start / Finish percentage

6. © Prof. Awad Hanna6 1. Supervisor Opinion Subjective evaluation of work completed is conducted by the project foreman or supervisor. Subjective evaluation

7. © Prof. Awad Hanna7 2. Units Complete Units Complete Physical Measurement Measurement from Drawings Actual Manhours Earned Manhours Methods: Reporting:

8. © Prof. Awad Hanna8 Comparison of Estimated Manhours to Actual Manhours For good performance I should be higher than H

9. © Prof. Awad Hanna9 Comparison of Earned Manhours to Actual Manhours

10. © Prof. Awad Hanna10 3. Level of Effort (Rules of Credit) To date Quantity: 366 base poured 185 lighting pole installed 41 globe installed Cumulative Quantities = 366(0.4) + 185(0.5) +41(0.1) = 243 Total Quantities = 700 % Complete = 243 / 700 = 35 % a. Incremental Milestones subtaskUnit of MeasureRules of Credit BaseEach0.4 Lighting poleEach0.5 GlobeEach0.1 Total TaskEach1

11. © Prof. Awad Hanna11 3. Level of Effort (Rules of Credit) Suitable for tasks that lack readily definable intermediate milestones example : Millwright work, Control panel. Assign 50% complete when you start a task and 100% Complete when you finish the task b. Start / Finish

12. © Prof. Awad Hanna12 Performance Factor Performance Factor (PF) =  Values greater than 1.0 are good  Values less than 1.0 are less than desired performance Budgeted or Estimated Unit Rate Actual Unit Rate

13. © Prof. Awad Hanna13 Performance Evaluation Report Column (4) = Column (3) [Column(1) / Column(2)]

14. © Prof. Awad Hanna14 Typical Performance Factor Curve 25%50%75%100% % Complete 1.0

15. © Prof. Awad Hanna15 Forecasting Workhours forecast at activity completion = Workhours to date % Complete

16. © Prof. Awad Hanna16 Workshop: Performance Evaluation  Description: Underground duct, banks ready for concrete fill, min 7.5” between conduits 4@3” diameter.  Problem:Continue evaluation of underground duct productivity by addressing the following items: 1.Complete the Performance Evaluation Report for underground duct and plot the cumulative PF for the last 3 weeks. Compute the PF and the Percent Complete. 2.Calculate the end-of-job workhour forecast after Weeks 4, 6, and 8. Compute forecasted workhours and forecasted unit rate. 3.Were the workhour forecasts accurate for the earlier periods? 4.At the completion, did the contractor beat the duct work estimate?

17. © Prof. Awad Hanna17 Workshop: Equations  Performance Factor (PF) =  Unit Rate =  Workhours Forecast at Activity Completion =  % Complete = Estimated Unit Rate Actual Unit Rate Workhours Quantities Total Estimated Quantities Actual Quantities to Date Workhours to Date X Quantities Completed to Date Total Estimated Quantities X 100

18. © Prof. Awad Hanna18 Workshop: Performance Evaluation Report

19. © Prof. Awad Hanna19 Underground Duct Forecast Report

20. © Prof. Awad Hanna20 Simple System for Tracking Project Performance 1.Divide the job into tasks 2.No task should be more than 5% of your base hours 3.Enter base hours from your estimate 4.Ask the foreman to provide you with subjective Evaluation of % Completion per task. 5.Calculate Earned Hours and Enter actual hour.

21. © Prof. Awad Hanna21 CodeDescriptionBase Hr% CompleteEarnedActual Total Estimated Hours

22. © Prof. Awad Hanna22 © Workshop Estimate Percent Complete

23. © Prof. Awad Hanna23 Workshop : Estimate project percent complete and determine performance factor (to-date) if the total hours spent to-date is 900 hours