A survey of constraints on Iranian construction operatives' productivity

Zakeri, M.; Olomolaiye, Paul; Holt, Gary David; Harris, Frank

doi:10.1080/014461996373287

Cited by 95 publications

(102 citation statements)

References 8 publications

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“…One-third of the respondents (37%) had completed guidance school and only 17% of the respondents had high school qualifications. This indicated that construction workers in Iran still have low levels of literacy as acknowledged in previous studies (Tabassi & Bakar 2009;Zakeri et al 1996) which is also the case for most developing countries (Alkilani, Jupp & Sawhney 2013). Furthermore, construction workers usually do not have salaried and secure job contracts (Doloi 2007), have minimal education and work for low wages (Alkilani, Jupp & Sawhney 2013).…”

Section: Profile Of Respondentsmentioning

confidence: 76%

“…With regard to age, 70% of respondents were younger than 30 denoting the dominance of young workers in the Iranian construction context as stated in previous studies (Zakeri et al 1996). Iran has one of the youngest populations in the world according to the Statistical Centre of Iran (2011) report on the National Population and Housing Census of Iran: the largest proportion of the population is in the category of '21-30 years'.…”

Section: Profile Of Respondentsmentioning

confidence: 89%

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Mapping site-based construction workers’ motivation: Expectancy theory approach

Ghoddousi

Bahrami

Chileshe

et al. 2014

CEB

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The aim of this study is to apply a recently proposed model of motivation based on expectancy theory to site-based workers in construction and confirm the validity of this model for the construction industry. The study drew upon data from 194 site-based construction workers in Iran to test the proposed model of motivation. To this end, the structural equation modelling (SEM) approach based on the confirmatory factor analysis (CFA) technique was deployed. The study reveals that the proposed model of expectancy theory incorporating five indicators (i.e. intrinsic instrumentality, extrinsic instrumentality, intrinsic valence, extrinsic valence and expectancy) is able to map the process of construction workers' motivation. Nonetheless, the findings posit that intrinsic indicators could be more effective than extrinsic ones. This proffers the necessity of construction managers placing further focus on intrinsic motivators to motivate workers.

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Section: Profile Of Respondentsmentioning

confidence: 76%

Section: Profile Of Respondentsmentioning

confidence: 89%

Mapping site-based construction workers’ motivation: Expectancy theory approach

Ghoddousi

Bahrami

Chileshe

et al. 2014

CEB

View full text Add to dashboard Cite

show abstract

“…There are some previous studies that attempted to identify these in uencing factors. Table 1 depicts di erent in uencing factors identi ed by the previous studies [27][28][29][30][31][32]. Table 1.…”

Section: Model Structurementioning

confidence: 99%

Modeling Labor Productivity in Construction Projects using Hybrid SD-DES Approach

2017

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Abstract. Labor productivity is one of the most signi cant factors in the evaluation of the performance of construction projects. Improvement of labor productivity is believed to have direct impact on outperformance of the project. This research argues about a hybrid SD-DES approach to model labor productivity considering the e ects of both the context and operational level factors. The complex inter-related structure of di erent context factors a ecting the labor productivity is modeled using System Dynamics (SD) approach. Discrete Event Simulation (DES) is implemented to model the operational variables and their e ects on labor productivity. Using the proposed hybrid SD-DES model, the labor productivity can be determined more precisely since the e ects of both context and operational variables are taken into account. The proposed hybrid model is implemented in a real-world case and the value of labor productivity is simulated considering the e ects of both context and operational variables.

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“…Lim and Price (1995) cited the seven factors identified as affecting overall construction productivity in Singapore: Buildability; Structure of the industry; Training; Mechanization and automations; Foreign labour; Standardizations; and Building controls. Zakeri et al (1996) analysed the constraints to site work on Iranian construction projects. The common problems identified were ranked through questionnaire survey method.…”

Section: Previous Studiesmentioning

confidence: 99%

Essential Causes Of The Critical Site Coordination Problems In Building Projects: A Hong Kong Study

Price

2014

OTMCJ

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In Hong Kong, main contractors of building projects tend to subcontract most of their work. However, many of the subcontractors complain that they are unable to perform to their full capacity due main contractors' poor site coordination of temporary works and interfacing works and plant supports etc. Six critical site coordination problems caused by main contractors that had adversely influence to the performance of subcontractors were identified in previous study. Twelve essential causes to the problems were identified from literatures and previous studies. A questionnaire survey was conducted to establish a model that explain how the essential causes contributed to the occurrence of the critical site coordination problems which subsequently affected the performance of subcontractors. The survey results were validated by neural network analysis. Backward elimination method was adopted to identify the 'most essential' causes that enable main contractors to formulate measures to eliminate the critical site coordination problems. The survey findings show that 'design of the temporary work provided by main contractor cannot meet the requirements requested by the subcontractors' is the 'most essential' causes of four out of the six critical site coordination problems.

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A survey of constraints on Iranian construction operatives' productivity

Cited by 95 publications

References 8 publications

Mapping site-based construction workers’ motivation: Expectancy theory approach

Mapping site-based construction workers’ motivation: Expectancy theory approach

Modeling Labor Productivity in Construction Projects using Hybrid SD-DES Approach

Essential Causes Of The Critical Site Coordination Problems In Building Projects: A Hong Kong Study

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