1. Construction Management Research

2. Theory of Construction Management Effective theory comprises tested propositions

3. Theory of Construction Management QUALITY OF RELATIONSHIPS NUMBER OF INTERACTING TEAMS PERFORMANCE VARIABILITY COMPLEXITY EXTERNAL INTERFERENCE INHERENT DIFFICULTY CONSTRUCTION MANAGEMENT STRATEGIES AGREED OBJECTIVES

4. Agreed Objectives Establish practical measures of key objectives Encourage their use Research the effectiveness of key measures in guiding practice Encourage the use of benchmarking based on established measures

5. Potential Key Objectives Customer satisfaction Quality Time Safety Value Effective relationships Life cycle costs of facility Profits of construction companies

6. Inherent Difficulty Indicators Encourage the use of IDIs Research to demonstrate the value of IDIs Research effectiveness of IDIs Establish the role of IDIs in construction management research

7. Inherent Difficulty Indicators Established Relationships Relationship Fluctuation Relationship Quality Relationship Configuration Performance Variability External Interference

8. Size of Construction Projects Establish effective size categories Encourage the use of size categories Research to demonstrate the value of size categories Research effectiveness of size categories Establish the role of size categories in construction management research

9. Size Categories Minor Project – 100 construction team days Small Project - 1000 construction team days Normal Project - 5000 construction team days Large project – 10,000 construction team days Mega Project – 25,000 construction team days

10. Construction Management Strategies Strategies are designed to deliver greater efficiency Agreed objectives describe project aims Inherent difficulty plus size define the challenge posed by a project Propositions describe actions that deliver greater efficiency

11. Research into Strategies Needs a map of every possible construction project Then individual projects can be plotted onto the map The effect of possible strategies can also be plotted to establish the likely benefits

12. Map of Construction Projects Size of project Construction technologies used

13. Research Data Number of interacting teams Quality of relationships Performance variability External interference Agreed objectives Project efficiency

14. Individual Tests Pairs of identical projects Different strategies Compare efficiency But this is slow and time consuming

15. Simulation Simulation can produce a virtual map of every possible construction project Needs a robust method of simulating the behaviour of construction projects This will be tested using data from live projects

16. Map of Construction Projects The map helps practice to select construction management strategies The map allows researchers to test individual construction management propositions

17. Research Question What is the optimum number of teams for projects of each size category and distinct construction technology in terms of construction efficiency?

18. Research Question What is the optimum configuration of teams in terms of the number of time intervals, the duration of time intervals, and the number of interacting teams in each time interval for projects of each size category and distinct construction technology?

19. Research Questions What is the influence of established relationships on construction efficiency? Which relationships in projects of each size category and distinct construction technology benefit most from established relationships in terms of construction efficiency?

20. Research Questions What are the most significant causes of teams having distinct levels of performance variability? What are the effects of distinct patterns of performance variability on construction efficiency?

21. Research Questions What are the distinct categories of events which cause external interference in terms of their nature, duration and magnitude? What is the impact on construction efficiency of each distinct category of events which cause external interference?

22. Research Questions What distinct categories of agreed objectives exist to guide construction project teams? What influence does each category of agreed objectives have on the optimum number of teams, the influence of established relationships, and the optimum configuration of teams?

23. Further Research Issues IDIs can be tested and probably made more effective The Theory of Construction Management provides a robust basis for future construction management research since it enables different studies to be related to each other throwing up new research questions