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Open accessJournal ArticleDOI: 10.1080/15623599.2018.1534044

Constructability obstacles: an exploratory factor analysis approach

04 Mar 2021-The international journal of construction management (Taylor and Francis Ltd.)-Vol. 21, Iss: 3, pp 312-325
Abstract: Constructability is a concept with relative and not absolute value to increase optimization capacity of resources such as workforce, time, cost, quality, and working environment conditions. Given the growing complexity of projects and the increased number of failed and abandoned projects, the necessity to implement constructability in projects has become more tangible. Although the effects of lack of quantitative definition of constructability role in the traditional construction approaches are evident and have led to lack of coordination in performance of construction projects, so far no comprehensive quantitative approach has been considered to analyze the obstacles to constructability implementation. This study aims to identify and categorize the obstacles to facilitating the presence of contractors in the early stages of planning and design to implement constructability. In this study a comprehensive list of obstacles to constructability implementation is developed as a questionnaire. This questionnaire was presented to the experts, active in the field of construction. Finally, its results were analyzed using exploratory factor analysis method. Totally, 63 obstacles were questioned, then they were categorized by some of the experts of this industry into five categories of macro factors, including contractual, environmental, managerial, technical, and organizational. The significance of this study is due to this fact that identifying and categorizing the key obstacles to constructability implementation provides a useful reference for managers and owners of the construction industry to identify and develop solutions to resolve them. Identifying the obstacles to the presence of contractors in the planning and design stage and having a quantitative view toward this issue affects project implementability. In this regard, one can present more effective solutions to facilitate the presence of contractors in the early stages of design and also improves the effectiveness of constructability.

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Topics: Constructability (74%)

10 results found

Open accessJournal ArticleDOI: 10.14424/IJCSCM100320-115-140
28 Mar 2020-
Abstract: Cost performance in the construction industry is important to enhance industry standard and grow a country's economy. This paper examines the key factors affecting cost performance in Thai construction projects, specifically at the pre-construction and construction phases. A questionnaire survey is used to gather data for the exploratory factor analysis (EFA) and structural equation modelling (SEM) analysis used in this study. The EFA technique extracted the key factors affecting construction cost, while the SEM revealed the interactions and causal relationships between those key factors. The EFA results confirm seven key factors: three at the pre-construction phase: lack of coordination, design management, and unclear client requirements; and four at the construction phase, including site management, resources, labour capability and contract-related. The SEM results confirm strong relationships, directly and indirectly, between the three key factors at the pre-construction phase. Good coordination between stakeholders result in less design errors and clear client requirements. The influences that the three factors at the pre-construction phase have on the four factors at the construction phase are also supported. The result highlights that unclear client requirements cause poor site management and cost overrun, which may lead to breach of contracts. Construction companies can use this study results to better plan for cost improvement by focusing on the identified pre-construction factors, as they could lead to good cost management during the construction phase.

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6 Citations

Open accessJournal ArticleDOI: 10.28991/CEJ-2020-03091493
Abstract: Success in infrastructure projects requires success in all phases of the project, including design, construction, and operation. One of the necessary actions for developing countries to construct their economic infrastructures, is implementing infrastructure plans. This industry should focus more on the construction process and utilizing creative tools and new concepts for construction development. The reason of it is because of delivering the project with certain quality, in time and with the given budget. Contractors should have new strategies for construction to optimize project completion, and constructability. Accordingly, constructability improvements have become the concern of construction industry practitioners. Considering constructability issues in the early stages of the project enhances identifying design limitations that prevent capabilities of contractors to take part in planning and improving project performance. The purpose of this study is identifying the prerequisites of constructability to resolve the current problems of projects, including inappropriate plans without implementability, poor decision making in design, and lack of sufficient implementation experience in the design engineering team. This study provides a list of prerequisites for constructability implementation in infrastructure projects. Accordingly, it identifies the prerequisites, using Systematic Literature Review (SLR) technique. The NVivo software is used to facilitate the qualitative analyses.

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Topics: Constructability (72%)

5 Citations

Open accessJournal ArticleDOI: 10.30880/IJSCET.2019.10.02.004
Abstract: It is important that the constructability concepts are adopted to improve projects’ performances. Some of the benefits of “constructability” identified by previous researchers include reduced project duration & cost (Jadidoleslami, Saghatforoush, Heravi, & Preece, 2018), reduced changes (Saghatforoush, Hassim, Jaafar, & Trigunarsyah, 2010), better design (Khan, 2018), and improved construction efficiency (Sanjaya, Joni, & Frederika, 2019). Although there were numerous research on the constructability concept since its introduction in late 1970, there are limited contemporary literature to study the critical constructability principles for infrastructure projects. In the Malaysian context, a few researchers (Hassan, 2005; Jelodar, 2009; Nawi et al., 2009; Mydin, Zin, Majid, Zahidi, & Memon, 2011) had pointed out that the research on constructability are limited. Therefore, this paper aims to identify the most critical constructability principles for girder type river bridge projects in Malaysia. The research process to identify the most critical constructability principles is explained in this paper. Abstract: Implementing constructability concepts in a project can bring many benefits such as reduced project cost & duration, enhanced project quality, and improved site management. There were numerous research on the constructability concept since its introduction in late 1970. However, there are limited studies that identified the critical constructability principles for infrastructure projects. This study identified the critical design stage constructability principles for girder type river bridge construction in Malaysia. Based on extensive literature review and unstructured interviews with the experts in bridge construction, 54 constructability principles were identified. Questionnaires were distributed to professional engineers and G6 & G7 contractors in Malaysia to rate the 54 constructability principles in term of their importance or impact in enhancing the constructability of bridge construction based on 5-point Likert scale. The received 143 responses were analysed using factor analysis which is a data reduction tool of SPSS. Varimax method of orthogonal approach was adopted for factor rotation. Factor analysis had helped to generate 11 principal components or critical constructability principles. Cronbach’s Alpha reliability test also indicated good reliability of the questionnaire scale. The identified critical constructability principles can provide guidelines to the construction practitioners at the design stage to enhance the performance of bridge construction.

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Topics: Constructability (69%)

4 Citations

Open accessJournal ArticleDOI: 10.28991/CEJ-03091204
Abstract: In fact, constructability is facilitating the construction of a project through integrating knowledge and experience to achieve the overall and common objectives of the project in all stages of it, but practically there is still a significant gap between design, construction, and achieving the desired project objectives. Studies show that separating the design and construction processes and lack of presence of the contractor in the design stage, prevent the effective use of experiences and specialty of the contractor to improve and develop design processes. This issue results in increasing project time and cost, poor relationships, and also increasing project waste and duplication. The barriers to implementing this concept can have major differences with each other in different locations all over the world, due to the unity of the executive conditions in various countries. This paper evaluates the existing practical barriers to implementation of constructability in the construction industry. A comprehensive literature review has been performed by the authors through using the Meta-Synthesis method and findings were used to form research assumptions. Three case studies of Mass Housing project (MHP) in Tehran were instigated. Outputs taken from nine interviews with different experts in this industry working in diverse areas, including owners, consultants and contractors are then ranked after theoretical saturation compared using the NVIVO Software and through pattern and descriptive analyses. The concept of constructability is focused on the early presence of contractors in the initial stages of the project. So that, through integrating knowledge and experience, problems due to lack of their presence in the early stages of the project can be reduced. Comparing the existing barriers to implementing constructability in Iran with those of the wider world, presents some effective solutions to facilitate the presence of the construction contractors in the early stages of projects.

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Topics: Constructability (71%)

3 Citations

Journal ArticleDOI: 10.1080/15623599.2019.1686834
Abstract: Having integrated contractual strategies for projects and developing a transparent and unambiguous contract is highly effective for properly implementation of constructability. This study uses inte...

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1 Citations


13 results found

Journal ArticleDOI: 10.1108/EUM0000000005801
Caroline Stenbacka1Institutions (1)
Abstract: This article consists of two parts, starting with a discussion about generally accepted quality concepts in research, criticising them from the qualitative perspective. The article concludes by suggesting alternative concepts to be used for securing quality when pursuing qualitative research.

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916 Citations

Journal ArticleDOI: 10.1111/J.1365-2648.2006.03721.X
Lela V. Zimmer1Institutions (1)
Abstract: Aims. This paper discusses whether useful synthesis of research reports across different qualitative methodologies is possible, and whether qualitative meta-synthesis violates the tenets of the interpretive paradigm. Background. Qualitative meta-synthesis is a recent development in qualitative inquiry that offers a means of enhancing the contribution of qualitative findings to the development of more formalized knowledge. However, there are a number of unanswered questions and areas that require debate. Discussion. A brief overview of qualitative meta-synthesis as a method of inquiry is presented. The assumptions of phenomenology, ethnography and grounded theory are explored for their amenability to meta-synthesis and the possibility of coherent synthesis of findings across these methodologies. In addition, a summary of major philosophical commitments common to the interpretive paradigm is presented. Qualitative meta-synthesis as a methodology is then explored for its fit within this paradigm. An argument is made, with some caveats, for synthesis across qualitative methodologies. Gadamer's concepts of the hermeneutic circle, the fusion of horizons, and dialogue with the text are explored for the insight they provide into the place of qualitative meta-synthesis in inquiry. Conclusion. It is important for researchers to bring hermeneutic skill to the process of meta-synthesis in order to develop a comprehensive understanding of the various philosophical assumptions in which qualitative approaches are based. The particular challenge of combining analysis and interpretation from studies with markedly different approaches and intentions may prompt synthesists to create new and innovative approaches to the presentation of meta-synthesis.

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Topics: Grounded theory (56%), Hermeneutic circle (53%), Fusion of horizons (51%)

396 Citations

Open accessBook
11 Nov 1995-
Topics: Constructability (72%)

75 Citations

Journal ArticleDOI: 10.1061/(ASCE)0887-3828(1994)8:2(110)
Abstract: Recognition of barriers to constructability is identified as one of 15 significant parameters critical for effective constructability implementation. A barrier to constructability is any significant inhibitor that prevents effective implementation of the constructability program. The steps of this research are to: (1) Identify potential barriers to constructability and assess the relative frequency or severity of these barriers in industry; (2) characterize the prevalent barriers to constructability; and (3) describe any significant differences in barrier frequency across sectors of the industry. Constructability barriers are evident in almost all organizations at both corporate and project levels. Treatment of constructability barriers should involve a three‐phase cycle of identification, mitigation, and review. Initial efforts should focus on determining the presence of constructability barriers, and on determining the significance of those barriers identified. There are several problematic barriers to ...

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Topics: Constructability (71%)

48 Citations

Journal ArticleDOI: 10.1061/(ASCE)1076-0431(1995)1:2(73)
Abstract: The timely execution of a construction project is very important to the owner, who makes commitments and plans based on the project's anticipated completion data. Failure of a design professional t...

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38 Citations

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