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Constructability Tools and Techniques in Use in the Nigerian Construction Industry


FEATURED PAPER

By Benedict Amade

Owerri, Nigeria

 



ABSTRACT 

This study sought to identify constructability tools and techniques deployed by professionals within the industry with a view to improving the performance of construction projects in Nigeria. Fifty (50) questionnaires were administered purposively in public, private construction and contracting organizations in Port-Harcourt, Rivers State, Nigeria. Forty two (42) out of the fifty (50) questionnaires that had complete responses were used for the analyses. The responses were analyzed using both descriptive and inferential statistical tools via SPSS. The findings from the study indicate that a majority of the respondents are not too conversant with the term constructability, while a handful had. This practically implies that on the average there is generally a low level of awareness and understanding of the concept and the application of constructability tools and techniques among the various professionals. The findings further revealed that corporate lesson learned log/file with a (MS=4.00) was the most used and ranked first. Others are; Brainstorming with a (MS=3.90), Peer Review with a (MS=3.89), Graphical computer based tools and CAD with a (MS=3.83), discussions with clients, contractors, suppliers with a (MS=3.43).

Keywords:     Constructability, Constructability tools, construction, construction industry, mean score, ranking.

INTRODUCTION

The concept of “constructability” in the US or “buildability” in the UK emerged in the 1970’s in an effort to stop the declining cost-effectiveness and quality of the construction industry (Wong et al. 2006). It was born out of the realization that designers and contractors see the same project from different perspectives, and that optimizing the project requires that the knowledge and experience of both parties be applied to project planning and design processes.

Kamari and Pimplikar (2012) defined constructability as a project management technique for reviewing construction processes from the conception to finished stage during the pre-construction phrase. It is usually a means for identifying obstacles before a project is actually constructed to help reduce or prevent incidences of error, delays and cost overruns (Kamari and Pimplikar, 2012)

According to Hijazi, et al. (2009), construction industry institute (CII), defined constructability “as the optimum use of construction knowledge and experience in planning, design, procurement and field operations to achieve overall project objectives”. Furthermore, Hijazi, et al. (2009) opined that construction managers display the benefit of adopting constructability in terms of cost reduction within the range of one to fourteen percent of the total cost. Regardless of the stage of its implementation, constructability centers on the design.

Prior to the improvement of constructability during the planning and design stages, the key to achieving this during the construction phase of the project is normally through an effective feedback construction knowledge system (Kartam, et al. 1999). Furthermore, Kartam, et al. (1999) opined that when a project advances into the construction phase, the feedback system needs to take care of the task at hand is the construction knowledge in terms of methods, materials, equipment and coordination.

According to Ayangade, et al. (2009), the Nigerian infrastructure sector has experienced a massive growth over the past few years with a steady rise in construction expenditure in the country, primarily due to the growing increase in oil revenue. The impact of the construction industry on the economy is a known reality. It is a key indicator and driver of economic activity and wealth creation. The construction industry the world over according to Ayangade, et al. (2009) straddles all human endeavours. Its activities include the procurement of goods and services as well as the execution of a variety of physical structures and infrastructures. It has helped in contributing to Gross Domestic Product (GDP), Gross fixed capital formation and creation of high level of employment to the entire populace.

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About the Author

pmwj44-Mar2016-Amade-PHOTO
Benedict Amade

Owerri, Nigeria

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Benedict Amade, a Project Manager by Profession, is studying for a Doctor of Philosophy (PhD) Degree in Project Management Technology at the Federal University of Technology, Owerri, Nigeria, and is a member of the Project Management Institute (PMI) U.S.A. Mr. Amade presently is a lecturer in Project Management at the Department of Project Management Technology of the above mentioned institution. His areas of research interest include construction project management, computer based project management and construction supply chain management. He has authored more than 15 scientific publications in international refereed journals and is actively involved in other consultancy works.

He can be contacted at [email protected] or [email protected]