scholarly journals Identification and analysis of factors affecting labour productivity in Iraq

2018 ◽  
Vol 162 ◽  
pp. 02032 ◽  
Author(s):  
Tareq Khaleel ◽  
Yasser Nassar
Keyword(s):  
Labor Productivity ◽  
Construction Projects ◽  
Arab World ◽  
Labour Productivity ◽  
Relative Importance ◽  
Construction Sites ◽  
Factors Affecting ◽  
Importance Index ◽  
Leadership Motivation ◽  
Major Factors

Productivity is a very important element in the estimation process in construction management. The objective of this research is to identify and analyze the factors which affect labor productivity in construction projects. In this research, 42 effective factors were collected from site survey, interview with engineers and experts, and previous research in the Arab world. These factors are grouped into Nine categories “Workforce, Leadership, Motivation, Supervisors, Safety, Project, Time, Material, and External”. A survey questionnaire of 70 respondents was distributed among different experts. A statistical analysis was done using SPSS and EXCEL packages. The Relative Importance Index was used to find out the most significant factors affecting the labor productivity in construction sites. The results accomplished from the survey revealed that the major factors negatively affect the labor productivity (ranked from the worst factor with Relative Importance Index values, respectively) namely, Availability Material (88.571%), Climate status “Weather” (88%), Religious occasions (86.29%), Number of working groups (86%), Ganger experience (85.714%), Workforce surveillance (84.857%), Ganger Age (84%), working at height (82%), Drawings and specifications alteration during execution (81.69%), and Sequence of floor (80.571%). Based upon these findings, this can help the construction professionals to improve the productivity and project performance in Iraq.

Relative Importance of Factors Affecting Construction Hazards in the Design Phase

2013 ◽  
Vol 330 ◽  
pp. 862-866
Author(s):  
Seyyed Shahab Hosseinian ◽  
Zahra Jabbarani Torghabeh ◽  
Aziruddin Ressang
Keyword(s):  
Construction Projects ◽  
Relative Importance ◽  
Design Phase ◽  
Construction Sites ◽  
Index Method ◽  
Safety Level ◽  
Factors Affecting ◽  
Importance Index ◽  
Construction Accidents ◽  
Construction Hazards

dentifying the root causes of construction accidents has indicated that not only contractors but designers and architectures are capable of influencing construction workers safety. The aim of this study is to investigate and prioritize factors affecting construction hazards in the design phase. To achieve the aim of this study, a questionnaire survey was distributed among respondents randomly selected from construction sites within Malaysia. Relative Importance Index method was used to prioritize factors in order of level of effect on construction hazards. The results indicated that Lack of designers safety knowledge, Lack of designers knowledge about construction processes and Late involvement of constructors in the design process have the highest level of effect while Lack of safety organizations which evaluates the safety level of design and Few application of components' prefabrication have the lowest level of effect on hazards in the design phase of construction projects.

scholarly journals FACTORS AFFECTING THE PRODUCTIVITY OF BUILDING CRAFTSMEN ‐ STUDIES OF UGANDA

2007 ◽  
Vol 13 (3) ◽  
pp. 169-176 ◽  
Author(s):  
Henry Mwanaki Alinaitwe ◽  
Jackson A. Mwakali ◽  
Bengt Hansson
Keyword(s):  
Construction Projects ◽  
Labour Productivity ◽  
Weather Conditions ◽  
Project Managers ◽  
Time Cost ◽  
Factors Affecting ◽  
Construction Methods ◽  
Importance Index ◽  
Building Craftsmen ◽  
Major Factors

Poor productivity of construction workers is one of the causes of cost and time overruns in construction projects. The productivity of labour is particularly important especially in developing countries, where most of the building construction work is still on manual basis. This paper reports on a survey made on project managers of building projects in Uganda, where an increase in productivity is being sought. Respondents were required to rate using their experience how 36 factors affect productivity with respect to time, cost and quality. The survey was carried out by a questionnaire and responses received over a period of 3 months. The ten most significant problems affecting labour productivity were identified as incompetent supervisors; lack of skills from the workers; rework; lack of tools/equipment; poor construction methods; poor communication; inaccurate drawings; stoppages because of work being rejected by consultants; political insecurity; tools/equipment breakdown; and harsh weather conditions. Although lack of materials is ranked highest with regard to average rating on loss of time, it was not ranked among the top ten using the importance index that takes into account time, cost as well as work quality. The policy makers and researchers should focus on the identified major factors in order to improve productivity.

Labour productivity motivation framework for Iskandar Malaysia

2018 ◽  
Vol 8 (3) ◽  
pp. 293-304 ◽  
Author(s):  
Chukwuka Christian Ohueri ◽  
Wallace Imoudu Enegbuma ◽  
Ngie Hing Wong ◽  
Kuok King Kuok ◽  
Russell Kenley
Keyword(s):  
Financial Incentives ◽  
Construction Projects ◽  
Quantitative Research ◽  
Labour Productivity ◽  
Sampling Technique ◽  
Working Environment ◽  
Continuous Training ◽  
Content Type ◽  
Importance Index ◽  
Major Factors

Purpose The purpose of this paper is to develop a motivation framework that will enhance labour productivity for Iskandar Malaysia (IM) construction projects. The vision of IM development corridor is to become Southern Peninsular Malaysia’s most developed region by the year 2025. IM cannot realise this foresight without effective labour productivity. Previous studies have reported that the labour productivity of IM construction projects was six times lower than the labour productivity of Singapore construction projects, due to lack of motivation among IM labourers, and a shortage of local skilled labour. Therefore, there is a need to study how to motivate IM construction labourers, so as to increase their productivity. Design/methodology/approach A quantitative research method was used to collect data from IM construction skilled labourers and construction professionals, using two sets of questionnaire. The respondents were selected using a purposive sampling technique. In total, 40 skilled labourers and 50 construction professionals responded to the questionnaire survey, and the data were analysed using Statistical Package for Social Science software (version 22). Findings The analysis revealed the major factors that motivate labourers participating in IM construction projects. The factors were ranked hierarchically using Relative Importance Index (RII) and the outcome of the ranking indicated that effective management, viable construction practices, financial incentives, continuous training and development, and safe working environment were the most significant motivation strategies that positively influence IM construction labourers. Originality/value The study developed and validated a framework that can be used to boost the morale of IM construction labourers, so that their productivity can be increased. Implementation of the established motivation framework will also lead to career progression of IM construction labourers, based on the training elements in the framework. This career prospect will attract local skilled labourers to participate in IM construction projects.

scholarly journals Factors Affecting Contractors’ Bidding Decisions for Construction Projects in Saudi Arabia

Buildings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 33 ◽  
Author(s):  
Mohammad Alsaedi ◽  
Sadi Assaf ◽  
Mohammad Hassanain ◽  
Abdullatif Abdallah
Keyword(s):  
Saudi Arabia ◽  
Construction Projects ◽  
Critical Factors ◽  
Start Time ◽  
Design Quality ◽  
Factors Affecting ◽  
Importance Index ◽  
Efficiency And Effectiveness ◽  
Major Factors ◽  
Level Of Agreement

One of the critical decisions taken by contractors is whether or not to bid for a project. This is due to the complexity and uncertainty surrounding this decision, which is influenced by many factors. Given the above challenge, this study aimed to uncover the critical factors affecting the contractors’ bidding decisions in Saudi Arabia-based construction projects. A questionnaire survey, which consisted of 31 factors, was distributed to first-, second- and third-grade contractors. In total, 67 responses were obtained. Median and relative importance index (RII) techniques were adopted for ranking the most critical factors. Based on the received responses, the top six critical factors were “size of the job”, “type of the job”, “company’s strength in the industry”, “designer/design quality”, “rate of return”, and “project cash flow”. The least significant factors were “job start time” and “labor environment (union/nonunion/cooperative)”. The findings of this study show a level of agreement among all contractors about the critical factors. The findings would benefit contractors and subcontractors by increasing their understanding of the major factors affecting the bidding decision process. Contractors armed with such valuable information will be better able to enhance their bidding decision-making process in terms of efficiency and effectiveness.

Contractors’ Perspective on the Main Factors Influencing On-Site Labour Productivity: A Focus on Malaysian Infrastructure Projects

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mohd Hanizun Hanafi ◽  
◽  
Ong Ming Zhen ◽  
Arman Abdul Razak ◽  
◽  
...  
Keyword(s):  
Construction Projects ◽  
Labour Productivity ◽  
National Development ◽  
Infrastructure Projects ◽  
Construction Sites ◽  
Construction Firms ◽  
Development Agenda ◽  
Importance Index ◽  
Financial Investments ◽  
Main Factors

The overall performance of construction projects has been seemingly low and has negatively affected its efficacy in fulfilling national development agenda. Infrastructure projects are complex and riddled with numerous construction risks, and often involve large financial investments as well as several resources, particularly labour. The objective of this research paper is to identify the main factors that influence labour on construction sites of infrastructure projects. In achieving this research objective, 26 factors were extracted from literature and subsequently distributed for assessment by 355 identified respondents via a questionnaire-based survey. 63 respondents, representing a response rate of 17.75%, participated in returning completed questionnaires for further analysis. The main factors that influence on–site labour productivity were identified through the use of Relative Importance Index analysis. The three most significant factors identified were co-ordination between sub-contractors, labour skill and expertise within specific job scopes, and, availability of updated construction drawings at the project sites. Several other factors were also extracted through the analysis conducted on the garnered data. These factors will collectively be able to accord contractors a better comprehension of the influencing elements that either impinge or promote labour productivity. These findings are pertinent for construction firms in the efforts to progressively increase the level of labour productivity in the Malaysian construction sector, particularly within the parameters of infrastructure projects.

scholarly journals Assessment of Human Productivity Drivers for Construction Labor through Importance Rating and Risk Mapping

2020 ◽  
Vol 12 (20) ◽  
pp. 8614
Author(s):  
Murat Gunduz ◽  
Abdulrahman Abu-Hijleh
Keyword(s):  
Labor Productivity ◽  
Construction Projects ◽  
Rank Correlation ◽  
Weather Conditions ◽  
Risk Mapping ◽  
Importance Rating ◽  
Factors Affecting ◽  
Importance Index ◽  
The Impact ◽  
Productivity Factors

Labor constitutes a significant portion of the overall cost of a construction project, where labor productivity is often the main driver of the cost. Although studies on labor productivity factors exist, their frequency of occurrence in terms of their ranking remains unexplored. This study differs from other studies in the literature by introducing the frequency component to the productivity factors, a more realistic ranking of the factors by adjusting the importance by frequency (frequency adjusted importance index) and risk mapping of the factors. Moreover, this study is the first to apply risk mapping on labor productivity drivers. The aim of this paper is to identify the project factors affecting the labor productivity in construction projects and to rank these factors considering the perception of the industry on project performance. A literature review of past relevant studies was performed to identify and draft a list of factors affecting labor productivity in construction projects. Thirty-seven labor productivity factors were presented in a questionnaire to investigate the impact and frequency of their occurrence in construction projects. A 9-point scale structured questionnaire was constructed to measure the importance and the frequency of the factors and to evaluate the ranking for different categories. The frequency adjusted importance index (FAII), Spearman’s rank correlation, and risk mapping were used to study and analyze the 105 completed responses. The participants rated the following factors as the five most significant labor productivity-influencing factors: (1) poor labor supervision, (2) delays in payments, (3) poor work environment, (4) lowly skilled labor, and (5) bad weather conditions.

scholarly journals STUDY ON FACTORS INFLUENCING LABOUR PRODUCTIVITY IN RESIDENTIAL BUILDINGS IN INDIAN SCENARIO

2020 ◽  
Vol 5 (2) ◽  
pp. 239-248
Author(s):  
PonmalarV ◽  
Aravindraj V ◽  
Nandhini K
Keyword(s):  
Construction Projects ◽  
Residential Buildings ◽  
Labour Productivity ◽  
Productivity Loss ◽  
Brick Masonry ◽  
Safety Measures ◽  
Factors Affecting ◽  
Work Pressure ◽  
Importance Index ◽  
Project Engineer

The construction sector is diverse as it contains contractors, consultants, designers, owners and others. Poor productivity of construction workers is one of the causes of cost and time overruns in construction projects. As construction is a labour-intensive industry, this paper focuses on labour productivity in the construction industry and to identify factors affecting labour productivity at building construction project. The performance of labour is affected by many factors and is usually linked to the performance of time, cost, work pressure, safety measures and quality. The questionnaires were distributed to supervisors, project Engineer, labourers, the top 35 factors were identified, categorized into 3 different groups, using SPSS tool, which is analytical software, the factors were analyzed and ranked considering relative importance index were calculated. And also calculated actual productivity for Brick Masonry is taken from sites. The result shows the factors considered which most affects the labour productivity loss in residential buildings and actual productivity versus expected productivity the brick masonry work were calculated.

scholarly journals Importance of Labour Efficiencyin Dry Dock Construction

2019 ◽  
Vol 8 (4) ◽  
pp. 5737-5741 ◽  
Keyword(s):  
Labor Productivity ◽  
Questionnaire Survey ◽  
Labour Productivity ◽  
Research Paper ◽  
Relative Importance ◽  
Construction Site ◽  
Factors Affecting ◽  
Survey Results ◽  
Dry Dock ◽  
Index Of Relative Importance

This research paper aims to define and evaluate factors affecting labor productivity in the construction site.A formal questionnaire survey was used as the tool for collecting data from the workforce from dry dock construction. The data collected were analyzed using the index of relative importance (RII) to rank the variables based on their relative importance. Suitable recommendations were made to working pattern considering the survey results and this showed an increment in the labour productivity. In this study the responses was collected from the thirty professionals working on the dry dock construction site. Based on the RII value the responses were analyzed and top ten factors were selected that influences the labor productivity the most. After implementing suggestive measures in four teams, productivity was improved and as a result baseline productivity for all four teams was almost around 350 kg/man. Improving productivity can help to reduce time and cost at the construction field.

scholarly journals Delays in Building Construction Projects in Ghana

1970 ◽  
Vol 10 (1-2) ◽  
pp. 103-116 ◽  
Author(s):  
Frank DK Fugar ◽  
Adwoa B Agyakwah-Baah
Keyword(s):  
Construction Projects ◽  
Field Survey ◽  
Implementation Process ◽  
Controlling Factors ◽  
Building Construction ◽  
Relative Importance ◽  
Structured Interviews ◽  
Importance Index ◽  
Major Factors ◽  
The Individual

This study investigates the causes of delay of building construction projects in Ghana to determine the most important according to the key project participants; clients, consultants, and contractors. Thirty-two possible causes of delay were identified from the literature and semi-structured interviews of 15 key players in the implementation process. These delay factors were further categorised into nine major groups. The list of delay causes was subjected to a questionnaire survey for the identification of the most important causes of delay. The field survey included 130 respondents made up of 39 contractors, 37 clients and 54 consultants. The relative importance of the individual causes and the groups were calculated and ranked by their relative importance index. The overall results of the study indicate that the respondents generally agree that financial group factors ranked highest among the major factors causing delay in construction projects in Ghana. The financial group factors were delay in honouring payment certificates, difficulty in accessing credit and fluctuation in prices. Materials group factors are second followed by scheduling and controlling factors.

scholarly journals ASSESSMENT OF LABOUR PRODUCTIVITY IN ROAD CONSTRUCTION PROJECTS OF PAKISTAN

2021 ◽  
Vol 12 (1) ◽  
pp. 32-38
Author(s):  
Wesam Salah Alaloul ◽  
Muhammad Ali Musarat ◽  
Hussain Mehmood ◽  
Muhammad Altaf
Keyword(s):  
Construction Projects ◽  
Labour Productivity ◽  
Road Construction ◽  
Factors Affecting ◽  
Financial Difficulties ◽  
Importance Index ◽  
One Belt One Road ◽  
Critical Issues ◽  
The Impact ◽  
Made In

Road construction in Pakistan is booming because of China’s One Belt One Road program. Pakistan is in a developing stage and facing a lot of challenges in construction projects, primarily in labour productivity. This research focuses on the factors affecting labour productivity in road construction projects of Pakistan. A questionnaire was developed to observe the impact of critical factors on labour productivity. Based on the gathered responses, the factors were ranked using the Relative Importance Index (RII). The analysis shows that out of thirty (30) factors, the most important five (5) factors that affect labour productivity on road construction are unskilled workforce, payment delays to labour, tools and equipment shortages, poor communication of supervisor with labours and financial difficulties of owner/contractor. By focusing on these critical issues’ betterment can be made in labour productivity which will directly enhance the projects’ performance.

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