[논문]Challenges to Prevent in Practice for Effective Cost and Time Control of Construction Projects

Olawale, Yakubu A.

doi:10.6106/jcepm.2020.10.1.016

Challenges to Prevent in Practice for Effective Cost and Time Control of Construction Projects 원문보기

Journal of construction engineering and project management, v.10 no.1, 2020년, pp.16 - 32

Olawale, Yakubu A. (WMG, University of Warwick)

Abstract ▼ AI-Helper

Cost and time control of projects is important in preventing project failure. However, achieving effective cost and time control in practice is often challenging. The challenges of project cost and time control in practice are investigated by carrying out a questionnaire survey on the top 150 construction contractors in the UK followed by in-depth semi-structured interviews of practitioners from 15 construction companies in the country. Quantitative analysis reveals that design change is the most important factor inhibiting the ability of UK contractors from effectively controlling both the cost and time of construction projects. Four of the top five factors inhibiting effective cost control are also the top factors inhibiting effective time control albeit in a different order. These top factors-design changes, inaccurate evaluation of project time/duration, risk and uncertainty, non-performance of subcontractors and nominated suppliers were also found to be endogenous factors to the project. Additionally, qualitative analysis of the interviews reveals 16 key challenges to prevent for effective project cost and time control in practice. These are classified into four categorised based on where they stem from as follows; from the organisation (1. Lack of integration of cost and time during project control, 2. lack of management buy-in, 3. complicated project control systems and processes, 4. lack of a project control training regime); from the construction management/project management approach (5. Lapses in integration of interfaces, 6. project control not being implemented from the early stages of a project, 7. inefficient utilisation and control of labour, 8. limited time devoted to planning how a project will be controlled at the outset); from the client; (9. Excessive authorisation gates, 10. use of adversarial and non-collaborative forms of contracts, 11. communication problems within client set-up, 12. obstructive client representatives) and; from the project team (13. Lack of detailed/complete design, 14. lack of trust among the project partners, 15. limited time devoted to project control on site, 16. non-factual reporting). The study posits that knowledge of these project control inhibiting factors and challenges is the first step at ensuring they are avoided and enable the implementation of a more effective project cost and time control process in practice.

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표/그림 (4)

표 TABLE I. INFORMATION OF INTERVIEWEES
표 TABLE II. CLASSIFICATION OF THE IDENTIFIED PROJECT COST AND TIME CONTROL INHIBITING FACTORS
표 TABLE III. RANKING OF FACTORS INHIBITING EFFECTIVE PROJECT TIME AND COST CONTROL
표 TABLE IV. CHALLENGES TO EFFECTIVE PROJECT COST AND TIME CONTROL

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