A systemic inquiry into the delay factors in South African electrical distribution projects

Ntshangase, Bonga; Tuan, Nien-Tsu

doi:10.1108/ijmpb-07-2018-0122

Cited by 6 publications

(4 citation statements)

References 33 publications

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“…Jahangoshai Rezaee et al (2021) utilized ISM to investigate the causal relationships between the delay factors and the evaluation factors to determine the root causes of delays in the Iranian construction projects. Likewise, Ntshangase and Tuan (2019) explored the delay factors in South African electrical distribution projects and demonstrated the interlaced relationship between the identified project delay factors, using the ISM method. Shoar and Chileshe (2021) deployed ISM to provide a hierarchical model of design change causes in building construction projects.…”

Section: Ism Approachmentioning

confidence: 99%

Modeling cost overrun in building construction projects using the interpretive structural modeling approach: a developing country perspective

Shoar

Yiu

Payan

et al. 2021

ECAM

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PurposeAlthough several studies have been conducted on the causes of cost overrun, they have mainly assumed that the causes of cost overrun are independent of each other, and few of them scrutinized the complex interrelationships between the causes. To fill the gap, this study aims to investigate the mutual interactions between the causes of cost overrun using interpretive structural modeling (ISM) and proposing strategies to tackle the causes considering their interactions.Design/methodology/approachCritical causes of cost overrun were identified through a comprehensive literature review. In total, 22 key causes are then refined based on the opinions of relevant experts involved in the Iranian building and construction sector. Using the nominal group technique, the causes' interactions were examined and represented via the ISM diagram. The causes were also classified using “matrix cross-reference multiplication applied to a classification (MICMAC)” technique.FindingsThe results showed that price fluctuation, claims, execution delay, delay in payment and change order positioned at the highest level of the obtained model can directly result in cost overrun, and corruption and poor contract management located at the base of the model are two major root causes of cost overruns. It was also concluded that more attention should be paid to the precontract phase of the project to address and prevent corruption and managerial issues deeply rooted in this stage.Originality/valueThe findings of this study provide a clear understanding of how different causes of cost overrun are related to each other and can ultimately assist project managers of different parties in choosing strategies to mitigate cost overrun in building construction projects.

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Section: Ism Approachmentioning

confidence: 99%

Modeling cost overrun in building construction projects using the interpretive structural modeling approach: a developing country perspective

Shoar

Yiu

Payan

et al. 2021

ECAM

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“…Project delay factors imply negative aspects. Identifying the delay factors to 'avoid' delay is an objective in project management (Ntshangase and Tuan 2019). Cost overrun could result in undesirable effects.…”

Section: Critical Success Factorsmentioning

confidence: 99%

The Other Side of Success Factors—A Systemic Methodology for Exploring Critical Success Factors

Tuan

2021

Syst Pract Action Res

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This paper puts forward a systemic methodology to explore Critical Success Factors (CSFs). The common idea about ranking CSFs is to explore the relationship of 'more important', i.e. directly assessing whether success factor A is more important than factor B. This idea is prominent in the prevailing approaches, e.g. the qualitative inquiry, quantitative analysis, and multi-criteria decision making. Exploring CSFs from a different lens, this paper argues for systemic approaches, reckoning that manifold interrelationships could exist between system elements. Considering the manifold interrelationships, the proposed methodology contends that two opposite interrelationships could exist between CSFs-'helping to achieve' and 'inhibiting to achieve'. The first step of assessing CSFs is to construct a digraph in a participatory way, showing the transitive 'helping to achieve' relationship between CSFs and obtain the 'helping to achieve' score for each element. The second step is to examine the inhibiting relationship through a pairwise comparison to obtain the 'inhibiting to achieve' score for each element. The third step is to combine the 'helping to achieve score' with 'inhibiting to achieve' score to obtain the net score for each success factor. This output aims to provide the relevant stakeholders with a more comprehensive spectrum in assessing CSFs to develop their organizations well.

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“…Factors were grouped into six groups, political, financial, technical, managerial, procurement and human resources. Ntshangase and Tuan (2019) explored the delay factors in South African electrical distribution projects and structured a systemic model showing that a loop comprising three factors is the driver leading to the delays in the electrical distribution projects. Factors are poor communication, poor planning and project scheduling not properly done.…”

Section: Literature Reviewmentioning

confidence: 99%

Fuzzy model for assessing delays in Egyptian residential projects

El-Rasas

Marzouk

2020

JFMPC

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Purpose Construction delays are a common problem in the Egyptian construction industry. Frequent delays in a project can lead to disputes and litigation. This paper aims to study and analyze the causes of construction delays. Design/methodology/approach This research identifies delay causes in residential projects in Egypt and analyzes these causes with the relative importance index method. The feedback of construction experts was obtained through interviews. Subsequently, a questionnaire survey was prepared. Fifty-six different delay causes were identified and categorized into eight categories based on a literature review and interviews with 36 experts from the construction industry who represent owners, consultants and contractors. Findings According to the highest values of the relative importance index, the top ten delay causes of residential projects in Egypt are determined. Statistical analysis is carried out using the analysis of variance method to test delay causes obtained from the survey, which revealed a good correlation between residential projects parties with respect to most of the delay causes. A fuzzy logic model using MATLAB is developed for determining the probability of delay of residential projects, and the model was tested in a real case study and was found to be satisfactory. Originality/value Delay causes in residential projects in Egypt were identified, and these causes were analyzed using the relative importance index method and fuzzy logic.

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A systemic inquiry into the delay factors in South African electrical distribution projects

Cited by 6 publications

References 33 publications

Modeling cost overrun in building construction projects using the interpretive structural modeling approach: a developing country perspective

Modeling cost overrun in building construction projects using the interpretive structural modeling approach: a developing country perspective

The Other Side of Success Factors—A Systemic Methodology for Exploring Critical Success Factors

Fuzzy model for assessing delays in Egyptian residential projects

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