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Article

SIMON T. KOMETA, PAUL O. OLOMOLAIYE and FRANK C. HARRIS

The importance of clients' responsibilities in the construction process, as perceived by both clients and consultants, was assessed through a structured questionnaire…

Abstract

The importance of clients' responsibilities in the construction process, as perceived by both clients and consultants, was assessed through a structured questionnaire survey. Using the relative index ranking technique, clients' fundamental needs and responsibilities in the construction process were analysed and ranked. Results indicate that the four most important needs are: functionality of the building, safety of the building, quality of the building, and completion time. The four most important clients' responsibilities identified by clients themselves are: planning/design, project finance, project implementation/management, and project definition/formulation. The four most important clients' responsibilities to project consultants are: project finance, project definition/formulation, planning/design, and project implementation/management. If both consultants and clients understand the fundamental needs of construction clients and if clients themselves are prepared to take an active role in the construction process, the chances of producing more successful projects will improve.

Details

Engineering, Construction and Architectural Management, vol. 2 no. 1
Type: Research Article
ISSN: 0969-9988

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Article

Gary D. Holt

Construction management research (CMR) surveys frequently use questionnaires that employ “Likert-type” items, Likert-items, and Likert scales to capture…

Abstract

Purpose

Construction management research (CMR) surveys frequently use questionnaires that employ “Likert-type” items, Likert-items, and Likert scales to capture respondents ' self-reported attitudes. This Editorial builds substantially on earlier observations by Holt regarding the significance of appropriate questionnaire response scale design and, use of the relative importance index (RII) method to analyse those data such scales yield. The paper aims to discuss these issues.

Design/methodology/approach

Several RII models are examined by their application to a data set. Objectives include to contrast their practicality in use, compare outputs, highlight limitations of some models and discuss methods of RII data analysis, interrogation and interpretation.

Findings

Principal messages are: all components of response scales should be carefully designed; alternative RII models can produce similar results of analysis; “simple percentage” RII models may not yield “real” percentages; the minimum rating scale integer should accurately reflect its descriptor; only rating scales offering a “0” response, or an “adjusted percentage” RII model can achieve unity; and RII outputs should be interpreted cautiously.

Research limitations/implications

Uncertain application of the RII has been observed within CMR literature, so implications of the Editorial will be of direct relevance to this research community (and beyond).

Originality/value

Aside from that cited above, no additional literature has been identified that specifically links RII usage to CMR.

Details

Construction Innovation, vol. 14 no. 1
Type: Research Article
ISSN: 1471-4175

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Article

Joshua O Dada and G O Jagboro

One of the major reasons for ineffective project delivery in the Nigerian construction industry is the improper assessment of risk factors. As a result, the industry…

Abstract

One of the major reasons for ineffective project delivery in the Nigerian construction industry is the improper assessment of risk factors. As a result, the industry continues to suffer poor performance with many projects failing to meet time and cost targets. This paper identifies the risk factors inherent in different building procurement methods and assesses their perceived relative importance with a view to evaluating their impact on project cost. The paper reports on a study carried out through a questionnaire survey of professionals within the construction industry in order to asses the relative importance placed on risk factors. Responses from the survey were analysed using relative importance index for the purpose of evaluating the impact of risk on projects cost. Data were collected on selected completed projects and analysed using frequencies, mean values and relative important index. The main risk factors identified are finance and political influence. A model was developed by relating the variation between the initial contract estimate and the actual project cost to the risk variables. From the analysis, the percentages of projects cost overrun due to the impact of risk were established for each procurement method investigated. The paper recommends that contingency additions should be based on the procurement method used.

Details

Journal of Financial Management of Property and Construction, vol. 12 no. 1
Type: Research Article
ISSN: 1366-4387

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Article

Rami Hughes and David Thorpe

The purpose of the research discussed in this paper is to ascertain the perception, from the project manager's viewpoint, of factors affecting construction productivity in…

Abstract

Purpose

The purpose of the research discussed in this paper is to ascertain the perception, from the project manager's viewpoint, of factors affecting construction productivity in the State of Queensland, Australia.

Design/methodology/approach

The research was conducted by a structured questionnaire that was sent to 89 randomly selected construction project managers in Queensland, Australia. This questionnaire requested background information about the respondents and then sought a score, using a 0-4 Likert scale, from each of them with respect to the importance of 47 factors identified from the literature that were considered likely to affect construction productivity. The factors were stratified into primary factors and secondary factors contributing to three of the primary factors. There were 36 responses. These factors were rated by the respondents and then ranked using a relative importance index approach.

Findings

The research evaluated the relative importance of the primary factors with respect to their effect on construction productivity. The 15 highest ranking factors are discussed. Three factors – rework, poor supervisor competency, and incomplete drawings – were ranked as having a strong effect on construction productivity. There was also an analysis of the secondary factors in relation to three of the primary factors.

Research limitations/implications

The research focused on the State of Queensland in Australia. It had a response rate of 40 per cent. It provides insight into the factors affecting productivity on construction projects in Australia. Further research to investigate the identified factors in depth, using targeted interviews of expert project management professionals, is currently being undertaken.

Practical implications

The construction industry can use the findings in this paper as a basis for improving the productivity of construction projects.

Originality/value

This research is original research, which has highlighted a number of key areas of which construction productivity can be improved.

Details

Construction Innovation, vol. 14 no. 2
Type: Research Article
ISSN: 1471-4175

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Article

Abdulaziz M. Jarkas

Since the construction industry in the State of Kuwait is further governed by a competitive environment, which is driven by the lowest cost mentality, the aim of this…

Abstract

Purpose

Since the construction industry in the State of Kuwait is further governed by a competitive environment, which is driven by the lowest cost mentality, the aim of this study is to identify and rank the relative importance of factors perceived to influence bid mark‐up size decisions among local general contractors bidding on construction projects.

Design/methodology/approach

The effects of 40 identified factors, which were shortlisted based on previous relevant investigations and the input of local industry experts, were surveyed by a statistically representative sample of contractors. Using the “relative importance index” technique, the influence ranks of the factors explored were established.

Findings

The results reveal the following as the primary factors affecting general contractors' bid mark‐up size decisions: employer type and identity; project size; clarity of technical specifications; previous experience with employer; number and identity of competitors; previous experience in similar projects; design complexity level; current work load; design quality level; and tendering duration.

Research limitations/implications

Although the outputs contribute to the overall body of knowledge related to bidding in the construction industry, it is further recommended to determine the relationship between the factors explored, especially those perceived as most significant, and their tangible effects on contractors' mark‐up decisions.

Practical implications

The outcomes: demonstrate the importance of the “constructability” concept to construction costs; and assert that the conception of exerting pressure on designers to cut down design durations and fees, and further shortening tenders' durations to speed up the projects' development process, is “false economy”.

Originality/value

The findings fill a gap in knowledge of the factors affecting contractors' bid mark‐up decisions, which can be used to provide academics, employers, industry practitioners, and policy makers, direction for focusing, acting upon and controlling the primary factors perceived to impact the competitiveness level of the State's construction industry.

Details

Journal of Financial Management of Property and Construction, vol. 18 no. 1
Type: Research Article
ISSN: 1366-4387

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Article

Dana L. Knoll and Harjinder Gill

The purpose of this paper is first, to assess the generalizability of the Integrative Model of organizational trust to the development of workplace trust in upward…

Abstract

Purpose

The purpose of this paper is first, to assess the generalizability of the Integrative Model of organizational trust to the development of workplace trust in upward, downward, and lateral relationships. Second, it examines the relative importance of ability, benevolence, and integrity in predicting trust in supervisor, subordinate, and peer. Design/methodology/approach – Human resource professionals (n=187) from two sources (a human resource professionals’ organization and a large Canadian corporation) responded to an online survey.

Findings

The results indicate that the integrative model of organizational trust was applicable to trust in supervisor, subordinate, and peer. The results also suggest that the relative importance of ability, benevolence, and integrity in predicting trust differed according to the trustor‐trustee dyad.

Research limitations/implications

A potential limitation of this study is that data regarding trust in each of the three referents (supervisor, subordinate, and peer) were obtained from the same raters. These findings need to be replicated with multi‐source data.

Social implications

Given the necessity of trust for positive cooperative relationships, a better understanding of how to foster trustworthiness among individuals would be a benefit to society.

Practical implications

The findings provide valuable information for the development of effective and efficient trust‐building strategies for upward, downward, and lateral workplace relationships.

Originality/value

The paper describes a study which simultaneously examined trust in supervisor, trust in subordinate, and trust in peer. It also assessed the relative importance of the antecedents of trustworthiness across referent dyads using the relative weight analysis procedure strategy.

Details

Journal of Managerial Psychology, vol. 26 no. 4
Type: Research Article
ISSN: 0268-3946

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Article

Tarek El-Rasas and Mohamed Marzouk

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…

Abstract

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.

Details

Journal of Financial Management of Property and Construction , vol. 25 no. 2
Type: Research Article
ISSN: 1366-4387

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Article

Gilbert Benhayoun

A recent analysis of wages has shown that within the productive structure of the French economy a two‐fold process of factor substitution is under way, namely the…

Abstract

A recent analysis of wages has shown that within the productive structure of the French economy a two‐fold process of factor substitution is under way, namely the substition of capital for labour and of non‐manual for manual workers. By the logic of neo‐classical distribution theory, the relative price of manual labour should be increasing as its marginal productivity rises. But computations which we have carried out for the French economy between 1949 and 1973 yield the opposite result: the relative price of labour has fallen steadily over the period. The aim of this article is to attempt to explain how much of this decreasing trend is attributable to changes in the structure of the active population and how much is due to changes in the structure of the prices of labour. For this purpose, and following the work of Phelps Brown and Sheila Hopkins, we have calculated an index reflecting the relationship between the index of manual workers' wage rates and the index of national income per head of the occupied population. This relationship represents what is usually referred to as the “wage‐income ratio”. (WIR), with the difference that, in this case, it is limited to wage rates in the private sector. Changes in the index of the WIR can be regarded as reflecting changes in the relative index of a unit of labour if it is accepted that the index of income per head of the occupied population itself can be interpreted as an index of the price of productive factors. This hypothesis is accepted by Phelps Brown and S. Hopkins: “the wage‐income ratio gives us the rate of exchange of a unit of wage‐earners' work, not against quantities of produce but against quantities of other factors”.

Details

International Journal of Social Economics, vol. 2 no. 2
Type: Research Article
ISSN: 0306-8293

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Article

X.K. Li, X.M. Wang and L. Lei

The purpose of this paper is to propose a method for assessing the lean construction management performance (LCMP) of engineering projects using the analytic network…

Abstract

Purpose

The purpose of this paper is to propose a method for assessing the lean construction management performance (LCMP) of engineering projects using the analytic network process-fuzzy comprehensive evaluation (ANP-FCE) model.

Design/methodology/approach

Literature review and questionnaire surveys were used to achieve an evaluation index system for LCMP. The data needed to calculate the weights of the indices were derived from questionnaire surveys. The ANP and the Super Decisions (SD) software were used to calculate the weights of the indices and verify the validity of the weights. The FCE was adopted to carry out a comprehensive evaluation of LCMP, and the validity of the evaluation results was verified by applying the validity degree of maximum membership principle. The applicability of the method for evaluating LCMP was validated by empirical research.

Findings

The proposed method for assessing the LCMP using the ANP-FCE model is validated to be feasible. Decision makers can easily identify the strengths and weaknesses of lean construction (LC) management of the evaluated project from the evaluation results.

Research limitations/implications

Some subjectivity may exist in the assessment process due to questionnaire surveys, and only one case has been studied to validate the applicability of the method. Therefore, researchers are encouraged to increase the number of LC experts and cases over the world to make the proposed method more standard.

Practical implications

The research is expected to propose an assessment method of LCMP for construction enterprises, provide a reference to develop assessment standards for LCMP for building associations or governments and help decision makers know the improving path of LC management.

Originality/value

This research contributes to the literature by summarizing the commonly used lean management tools for quality, cost, time, safety and organization in practice, and proposing a novel approach for assessing the LCMP of engineering projects. The study is useful for researchers, project managers and decision makers engaged in LC.

Details

Engineering, Construction and Architectural Management, vol. 27 no. 2
Type: Research Article
ISSN: 0969-9988

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Article

Hoda Abdelrazik and Mohamed Marzouk

Maintenance of heritage buildings in Egypt is essential for extending their life and preserving them in a good condition for current use and future generations. The…

Abstract

Purpose

Maintenance of heritage buildings in Egypt is essential for extending their life and preserving them in a good condition for current use and future generations. The purpose of this paper aims to study the significant parameters to be taken into consideration in the decision-making process for maintenance of heritage buildings.

Design/methodology/approach

This research identifies and analyzes the parameters affecting maintenance decision-making process using relative importance index method. Sixty-three parameters were collected from the literature and were categorized into six groups. The feedback of 15 experts who represent owners' representatives and consultants in the field of maintenance and preservation of heritage buildings was obtained through a questionnaire survey and analyses were conducted on the results.

Findings

According to the highest values of the relative importance index method, the top 10 influencing parameters are determined. A comparison between feedback of the two groups of experts is conducted. Statistical analysis is carried out to test the parameters, revealing a strong correlation between structural and geotechnical groups of parameters.

Originality/value

Parameters affecting decision-making for maintenance of heritage buildings were identified, influencing parameters can be used to compare between heritage buildings in greater need of maintenance than others.

Details

International Journal of Building Pathology and Adaptation, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2398-4708

Keywords

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