Executive Summary Measuring and Classifying Construction Field Rework: A Pilot Study Presented to: Construction Owners Association of Alberta (COAA) Field Rework Committee

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Executive Summary Measuring and Classifying Construction Field Rework: A Pilot Study Presented to: Construction Owners Association of Alberta (COAA) Field Rework Committee
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   Executive Summary Measuring and Classifying Construction Field Rework: A Pilot Study  Aminah Robinson Fayek, Ph.D., P.Eng. Manjula Dissanayake, Provisional Ph.D. Candidate Oswaldo Campero, M.Eng. Department of Civil and Environmental Engineering University of Alberta   May 2003 Presented to: Construction Owners Association of Alberta (COAA) Field Rework Committee    DISCLAIMER The information in this research report is provided only as a guide for full-scale studies. All the data are project specific and thus cannot be used to draw conclusions that relate to different projects, companies, or industry-wide scenarios. The views expressed and the conclusions reached in this report are those of the authors and not necessarily those of the  persons consulted. The University of Alberta and the authors shall not be responsible in any way whatsoever for any misuse or misinterpretation in whole or in part of the contents of this report. Available on Website The Field Rework Data Collection System (database), Executive Summary, and full report,  Measuring and Classifying Construction Field Rework: A Pilot Study , are all available on the following websites: http://www.coaa.ab.ca http://www.construction.ualberta.ca/papers.html To obtain additional information, please contact: Aminah Robinson Fayek, Ph.D., P.Eng. Associate Professor Department of Civil and Environmental Engineering 220 Civil/Electrical Engineering Building University of Alberta Edmonton, Alberta T6G 2G7 Canada Phone: (780) 492-1205 Fax: (780) 492-0249 E-mail: arobinson@civil.ualberta.ca ii ii    ACKNOWLEDGEMENTS Many individuals participated in this project. This study is a result of the collective efforts of the Field Rework Measurement Subcommittee and the Pilot Study Steering Committee of the Construction Owners Association of Alberta. Special acknowledgement is given to the following people for their continuous guidance and support throughout the pilot study: Don McLeod (Co-Chair of Field Rework Committee) SNC Lavalin Hans Wolf (Chair of Measurement Sub-committee) Graham Industrial Daniel Meek TransCanada Pipeline Glen Warren Ledcor Industrial John Hull Rod Wales North American Enterprises Additionally we would like to express our appreciation to Don McLeod (Co-Chair of Field Rework Committee) who provided many forms of assistance, but best of all always kept us in good spirits through the completion of this pilot study. We also appreciate the invaluable support provided by the Syncrude Aurora 2 project team throughout the data collection period. Their support in terms of providing access to the data and resources, and their full cooperation and knowledge sharing were key to the success of this study. Anthony Van Tol, a Ph.D. Candidate at the University of Alberta, was involved in the early part of this study; his contributions are gratefully acknowledged. Special thanks are directed to NSERC and the Consortium of Alberta Construction Companies, COAA, Aurora 2 Project Group, and the Construction Research Institute of Canada, for their financial support. iii iii  LIST OF ABBREVIATIONS CFRI Construction Field Rework Index CII Construction Industry Institute COAA Construction Owners Association Of Alberta EPC Engineering, Procurement, and Construction FRDCS Field Rework Data Collection System IFC Issued-For-Construction PMI Project Management Institute iv iv  EXECUTIVE SUMMARY   1.0 PROBLEM STATEMENT (Refer to Section 1.1 in full report) The Alberta Construction Industry is currently undergoing rapid growth, particularly in the industrial sector. Several mega-projects are currently underway. With tight schedules and multiple parties involved, cost and schedule overruns are often difficult to avoid. One contributing factor is rework. The COAA has therefore established a goal of developing industry Best Practices for reducing and preventing construction field rework. The Field Rework Committee was subsequently established to facilitate the development of these Best Practices. Before rework can be reduced and prevented, however it must first be quantified, measured, and its root causes identified. The Field Rework Measurement Subcommittee was created and charged with this mandate. Despite the fact that numerous studies have been conducted on rework, there is still no industry-wide standard for measuring and classifying rework as it occurs in the field. Currently, different organizations track rework using different indices, making it difficult to compare the amount of rework on an industry-wide level. Furthermore, an industry-wide method of classifying the causes of rework is required, before the most significant causes can be identified and subsequently remedied. 2.0 OBJECTIVES OF PILOT STUDY (Refer to Section 1.2 and 2.2 in full report)  The overall objective of the COAA Field Rework Committee is to develop industry Best Practices for reducing and preventing construction field rework. As a first step, a methodology was required to measure and quantify field rework, and identify the most significant causes of rework. A pilot study was commissioned with the University of Alberta to develop and test such a methodology. The specific goals of the pilot study were as follows: • To develop a definition for construction field rework. • To develop a standard rework index for quantifying the amount of field rework on a project. • To develop a standard methodology for identifying rework in the field and measuring or quantifying the amount of rework on the basis of cost, schedule, and other impacts. • To develop a realistic classification of the major factors and sub-factors causing rework, and to develop a standard definition of each factor. • To develop a standard methodology for quantifying the impact of each cause on the rework amount. • To develop a methodology for assessing the impact of rework from a given activity on other affected activities in the project. 1 1
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