Fuzzy Similarity Consensus Model for Early Alignment of Construction Project Teams on the Extent of Their Roles and Responsibilities

Elbarkouky, Mohamed M. G.; Fayek, Aminah Robinson

doi:10.1061/(asce)co.1943-7862.0000310

Cited by 23 publications

(24 citation statements)

References 29 publications

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“…It seems to be hard to update the knowledge of the tool, and the assessment appears to heavily rely (but understandably) on the team facilitator. Furthermore, in some circumstances, as there could be disagreements among DMs, a more systematic discussion procedure such as a consensus scheme should be embedded into the tool to mitigate this issue [45]. Future studies may consider these suggestions when developing their decision support tools.…”

Section: Discussionmentioning

confidence: 99%

Modeling a Decision Support Tool for Buildable and Sustainable Building Envelope Designs

Singhaputtangkul

Low

2015

Buildings

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Sustainability and buildability requirements in building envelope design have significantly gained more importance nowadays, yet there is a lack of an appropriate decision support system (DSS) that can help a building design team to incorporate these requirements and manage their tradeoffs at once. The main objective of this study is to build such a tool to facilitate a building design team to take into account sustainability and buildability criteria for assessment of building envelopes of high-rise residential buildings in Singapore. Literature reviews were conducted to investigate a comprehensive set of the sustainability and buildability criteria. This also included development of the tool using a Quality Functional Deployment (QFD) approach combined with fuzzy set theory. A building design team was engaged to test the tool with the aim to evaluate usefulness of the tool in managing the tradeoffs among the sustainability and buildability criteria. The results from a qualitative data analysis suggested that the tool allowed the design team to effectively find a balance between the tradeoffs among the criteria when assessing multiple building envelope design alternatives. Main contributions of using this tool are achievement of a more efficient assessment of the building envelopes and more sustainable and buildable building envelope design.

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Section: Discussionmentioning

confidence: 99%

Modeling a Decision Support Tool for Buildable and Sustainable Building Envelope Designs

Singhaputtangkul

Low

2015

Buildings

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“…Most often, infrastructure project teams have difficulty in evaluating environmental risks encountered in their projects, while construction firms depend on expert judgment in assessing these risk factors (Zabaal [9]). According to Elbarkouky and Fayek [10], the two main issues that may affect the decision-making process are "extracting meaningful data from a group of experts, and combining the experts, subject opinions by resolving disagreements." This is the reason why there is a need to develop a framework to aggregate experts' opinions in prioritizing environmental risks that can motivate expert judgment and deal with its relative vagueness and imprecision, linguistically.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Experts recommended the probability of occurrence and level of detection as well as the environmental risk impact groups as per Table 3. The process of constructing the membership functions of the input and output variables determine the supports and the initial non-uniform shapes of the membership functions of the experts, using the modified horizontal approach (Marsh and Fayek [11], Elbarkouky and Fayek [10]). Figure 3 illustrates the final shape of membership function "Probability of Occurrence".…”

Section: Create Fuzzy Linguistic Scalementioning

confidence: 99%

Qualitative Risk Management Framework to evaluate environmental risk events in infrastructure projects in developing countries

Abou-Shady¹,

El-Sawy²

2014

Energy and Sustainability V

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This paper presents a Qualitative Risk Analysis Framework to identify and prioritize environmental risks encountered in infrastructure projects, which is applied to developing countries. The framework incorporates consensus and quality of experts in the process of evaluating environmental risk events and is composed of (1) Fuzzy Expert System (FES) to determine attributes of experts; (2) Fuzzy Similarity Aggregation Algorithms to aggregate experts' opinions; and (3) three-dimensional prioritization approach to rank the risks, qualitatively. The FES determines an importance weight factor for each expert, based on a set of predetermined qualification attributes. Experts' opinions are aggregated in a linguistic framework, based on the proximity of their opinions on the scale to ensure that their aggregated decision is a result of common agreement. The importance weight factor is combined with the consensus weight factor of each expert in the aggregation process using a scalar modifier and the Euclidean Distance Measure Function is used to determine the linguistic criticality of every environmental risk event. A three-dimensional prioritization approach applies a set of ranking rules to every risk that enables experts to rank and visualize the priority of the risks in a three-dimensional space. The framework contributes to the Construction industry by solving a major problem for project teams in developing countries to qualitatively evaluate environmental risks in a fully supported linguistic framework, using fuzzy logic, which addresses the vagueness and imprecision that exist in the decision-making process. It provides an improvement over other fuzzy qualitative-based models, using FES, instead of relying on an arbitrary assessment of experts' qualifications in aggregating their opinions.

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“…According to Herrera and Herrera-Viedma [4], "those individuals (experts or decision-makers) are called on to express their opinions on a predetermined set of alternatives in order to select the best one(s)". Elbarkouky and Fayek [5] defined several elements that may cause expert' judgment to be different, such as academic experience, professional experience, position in their companies, the diversity of such experience, and willingness to provide information or data. Thus, the quality of experts is an essential factor in aggregating their opinions to make sure that their opinions are not flawed (Herrera et al [6]).…”

Section: Introductionmentioning

confidence: 99%

“…Most often, civil project teams have difficulty in evaluating sustainability objectives encountered in their projects, while civil construction firms depend on expert judgment in assessing these sustainability indicators (Zabaal [7]). According to Elbarkouky and Fayek [5], the two main issues that may affect the decisionmaking process are "extracting meaningful data from a group of experts, and combining the experts, subject opinions by resolving disagreements." This is the reason why there is a need to develop a framework to aggregate experts' opinions in prioritizing sustainability indicators that can motivate expert judgment and deal with its relative vagueness and imprecision, linguistically.…”

Section: Introductionmentioning

confidence: 99%

Qualitative assessment framework to evaluate sustainability indicators affecting infrastructure construction projects in developing countries using the Analytical Hierarchy Process (AHP)

Abou-Shady¹,

El-Sawy²

2013

WIT Transactions on Ecology and the Environment

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There are different sustainability indicators that may affect the construction projects which are necessary to be identified in order to improve the construction industry. This paper proposes a qualitative assessment framework that can assist construction project teams with a useful tool to identify and prioritize sustainability indicators impacting their projects. First, a literature review is conducted to identify the sustainability indicators that need to be considered in achieving a more sustainable construction project in Egypt. The factors are then ranked through a survey questionnaire and experts' judgment using a 7-point Likert scale to identify the most significant factors. The AHP is used in this paper to determine experts' importance weights. A case study of an infrastructure project in Egypt is conducted to identify, and prioritize different sustainability indicators affecting the construction of infrastructure projects in Egypt. The consent of framework development can be generalized and applied to other countries by changing related sustainability indicators and expert opinions. The framework solves a major problem that faces infrastructure construction project teams who want to Prioritize and assess quantitatively sustainability indicators existed in their projects prior to the start of construction phase.

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Fuzzy Similarity Consensus Model for Early Alignment of Construction Project Teams on the Extent of Their Roles and Responsibilities

Cited by 23 publications

References 29 publications

Modeling a Decision Support Tool for Buildable and Sustainable Building Envelope Designs

Modeling a Decision Support Tool for Buildable and Sustainable Building Envelope Designs

Qualitative Risk Management Framework to evaluate environmental risk events in infrastructure projects in developing countries

Qualitative assessment framework to evaluate sustainability indicators affecting infrastructure construction projects in developing countries using the Analytical Hierarchy Process (AHP)

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