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Article
Publication date: 15 May 2017

Hafiz Zahoor, Albert P.C. Chan, Ran Gao and Wahyudi P. Utama

The highest number of accidents in proportion to the employment rate is found in construction industry among all industries in Pakistan. The purpose of this paper is to…

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Abstract

Purpose

The highest number of accidents in proportion to the employment rate is found in construction industry among all industries in Pakistan. The purpose of this paper is to identify and prioritize the contributory factors of accident causation that can significantly reduce the rate of accident in the construction industry.

Design/methodology/approach

In total, 32 contributory factors of accident causation were identified through a triangulation strategy comprising eight face-to-face semi-structured interviews with the academic and industry experts coupled with a comprehensive literature review. Delphi survey was then conducted among the four respondent groups (clients, contractors, safety official and academia) to prioritize these factors. A consensus was achieved among the respondent groups after conducting two rounds of Delphi survey. Finally, the results were validated using the technique of inter-rater agreement (IRA) analysis.

Findings

All the shortlisted accident causation factors were graded as “important” to “extremely important”. Moreover, a “moderate” to “strong level” agreement was developed among the respondent groups. The three most significant factors were highlighted as “poor enforcement of safety rules and regulations by the Government agencies”, “insufficient allocation of safety budget and safety incentives by the client”, and “insufficient provision of safety training and resources by the contractor”.

Practical implications

The findings will help the key stakeholders to prioritize their energies towards achieving zero accident in the construction industry. Moreover, addition of academic experts as one of the respondent groups will enhance the linkages between the academia and the industry practitioners.

Originality/value

Besides highlighting the underlying causes of construction accidents in Pakistan, a detailed methodology is presented in this study for the analysis and validation of the Delphi survey data, which can be extrapolated in other regions and industries for elements prioritization. The findings of the study can also be generalized for other developing countries having similar work environment. The results validation through the use of IRA analysis is an addition to the field of construction safety research. The study also authenticates the applicability of IRA analysis to assess the agreement level among the respondents.

Details

Engineering, Construction and Architectural Management, vol. 24 no. 3
Type: Research Article
ISSN: 0969-9988

Keywords

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Article
Publication date: 28 February 2019

Wahyudi P. Utama, Albert P.C. Chan, Hafiz Zahoor, Ran Gao and Dwifitra Y. Jumas

The purpose of this paper is to introduce a decision support aid for deciding an overseas construction project (OCP) using an adaptive neuro fuzzy inference system (ANFIS).

Abstract

Purpose

The purpose of this paper is to introduce a decision support aid for deciding an overseas construction project (OCP) using an adaptive neuro fuzzy inference system (ANFIS).

Design/methodology/approach

This study presents an ANFIS approach as a decision support aid for assessment of OCPs. The processing data were derived from 110 simulation cases of OCPs. In total, 21 international factors observed from a Delphi survey were determined as assessment variables to examine the cases. The experts were involved to evaluate and judge whether the company should Go or Not Go for an OCP, based on the different parameter scenarios given. To measure the performance of the ANFIS model, root mean square error (RMSE) and coefficient of correlation (R) were employed.

Findings

The result shows that optimum ANFIS model indicating RMSE and R scores adequately near between 0 and 1, respectively, was obtained from parameter set of network algorithm with two input membership functions, Gaussian type of membership function and hybrid optimization method. When the model tested to nine real OCPs data, the result indicates 88.89 percent accurate.

Research limitations/implications

The use of simulation cases as data set in development the model has several advantages. This technique can be replicated to generate other case scenarios which are not available publicly or limited in terms of quantity.

Originality/value

This study evidences that the developed ANFIS model can predict the decision satisfactorily. Therefore, it can help companies’ management to make preliminary assessment of an OCP.

Details

Engineering, Construction and Architectural Management, vol. 26 no. 2
Type: Research Article
ISSN: 0969-9988

Keywords

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Article
Publication date: 11 July 2018

Dwifitra Jumas, Faizul Azli Mohd-Rahim, Nurshuhada Zainon and Wayudi P. Utama

The purpose of this paper is to develop a conceptual cost estimation (CCE) model for building project by using a pragmatic approach, which is a mix of tools drawn from…

Abstract

Purpose

The purpose of this paper is to develop a conceptual cost estimation (CCE) model for building project by using a pragmatic approach, which is a mix of tools drawn from multiple regression analysis (MRA) and adaptive neuro-fuzzy inference system (ANFIS), to improve the accuracy of cost estimation at an early stage.

Design/methodology/approach

This paper presents a set of MRA and integrating MRA with ANFIS or MRANFIS. A simultaneous regression analysis was developed to determine the main cost factors from 12 variables as input variables in the ANFIS model. Cost data from 78 projects of state building in West Sumatra, Indonesia were used to indicate the advantages of the proposed model.

Findings

The result shows that the proposed model, MRANFIS, has successfully improved the mean absolute percent error (MAPE) by 2.8 percent from MRA of 10.7–7.9 percent for closeness of fit to the model data and by 3.1 percent from MRA of 9.8–6.7 percent for prediction performance to the new data.

Research limitations/implications

Because the significant variables are different for each building type, the model may be not appropriate for other buildings depending on the characteristics of building. The models can be used and analyzed based on the own historical project data for each case so that the model can be applied.

Originality/value

The study thus provides better accuracy of CCE at an early stage for state building projects in West Sumatra, Indonesia by using the integrated model of MRA and ANFIS.

Details

Built Environment Project and Asset Management, vol. 8 no. 4
Type: Research Article
ISSN: 2044-124X

Keywords

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Article
Publication date: 16 April 2019

Malik Shahzad Shabbir

This study aims to explore how informal pawnbrokers and informal pawners interpret the existence of the informal pawnshop in the traditional market in Surakarta…

Abstract

Purpose

This study aims to explore how informal pawnbrokers and informal pawners interpret the existence of the informal pawnshop in the traditional market in Surakarta, Indonesia, with the main focus to determine the applicability of informal pawnshop development model.

Design/methodology/approach

The research used the qualitative method with the phenomenological approach using interview method to fully comprehend the informants’ views regarding the informal pawnshop existence in traditional markets in Surakarta, Indonesia. The applicability of informal pawnshop development model is required for Muslim market vendors. Charitable institutions shall participate in the development of the model by empowering (zakat, infaq, shadaqah and waqf) funds to help Muslims vendors in the traditional markets for additional capital in accordance with Islamic laws for a pawnshop.

Findings

The result of the research shows that the existence of informal pawning in the traditional markets is difficult to avoid as both informal pawnbrokers and informal pawners need one another. Most vendors in the traditional markets are Muslims. Islam teaches that loan interest is categorized as forbidden riba. Meanwhile, in the informal pawning practices, the informal pawnbrokers charge loan interest to the informal pawners.

Originality/value

The objective of this study is to investigate to what extent the Islamic pawn shops motivated the people through interest-free system. However, in past, tradition markets facilitate the people, but they charged a huge against it with interest (riba).

Details

Journal of Islamic Marketing, vol. 11 no. 2
Type: Research Article
ISSN: 1759-0833

Keywords

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Article
Publication date: 1 January 2021

Max Regus

This study aims to perform a systematic review of the dialectics and telematics strategy for regulating religion during the COVID-19 pandemic. The study also analyzes some…

Abstract

Purpose

This study aims to perform a systematic review of the dialectics and telematics strategy for regulating religion during the COVID-19 pandemic. The study also analyzes some important issues related to religions, state, and society.

Design/methodology/approach

A critical literature review was performed to complete this study, using media, institutional, national, and international reports, as well as recent and previous studies during the COVID-19 pandemic.

Findings

Religion was one of the social entities that had a crucial effect on the COVID-19 pandemic. The new system in the form of social distancing affects its performance. Furthermore, the response of religion in Indonesia is unique when its status is considered as the largest Islamic country in the world. Therefore, this study attempts to analyze and demonstrate the dynamics of relationships between actors, religion, and state in the process and strategy of religious regulation.

Research limitations/implications

This study was carried out using a single methodological approach.

Practical implications

This study provides input to both religion and the state (government) in building a synergy of constructive responses to the effects of the COVID-19 pandemic.

Social implications

It provides input to society in understanding the critical intersection between religion, state, and society.

Originality/value

This may be the first academic study that analyzes the problems of the process of regulating religion in the context of COVID-19.

Details

International Journal of Sociology and Social Policy, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0144-333X

Keywords

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Article
Publication date: 23 September 2013

Yudi Irmawan, Mohammad Hudaib and Roszaini Haniffa

– The purpose of this paper is to explore the perceptions of auditors and users of their reports on auditor independence in Indonesia.

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3295

Abstract

Purpose

The purpose of this paper is to explore the perceptions of auditors and users of their reports on auditor independence in Indonesia.

Design/methodology/approach

Auditors and users are requested to stated their confidence in the level of independence in 34 scenarios. Descriptive and χ2 test are the used to analyse the difference of perceptions amongst groups. The paper then conduct an interview with a senior officer of audit regulator body to better understand the findings.

Findings

Both groups have less confidence on auditor independence in 30 situations. Results between auditors and users indicate auditors having lower confidence on auditor independence than users in situations related to crossover from audit firm to client, provision of NAS, auditor litigation and indirect financial interest through shareholdings while users have lower confidence on auditor independence involving personal relationship with a political figure and client imposing strict budget on audit fees. Within the auditor group, non-Big 4 auditors expressed more concerned for situations related to family relationship and restriction on audit fees.

Originality/value

Research on auditor independence in Indonesia remains scarce despite the country's eagerness to adopt “international” accounting and auditing standards. In addition, the cultural context of Indonesia also helped in explaining our findings.

Details

Journal of Islamic Accounting and Business Research, vol. 4 no. 2
Type: Research Article
ISSN: 1759-0817

Keywords

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