scholarly journals A Study on Factors Affecting Labour Productivity on Construction Projects in Wolaita Zone, Ethiopia

2020 ◽  
Vol V8 (12) ◽  
Author(s):  
Ashebir Alyew ◽  
Keyword(s):  
Construction Projects ◽  
Labour Productivity ◽  
Factors Affecting

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.

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.

A preliminary study of the factors affecting the cost escalation of construction projects

2000 ◽  
Vol 27 (1) ◽  
pp. 73-83 ◽  
Author(s):  
Karla Knight ◽  
Aminah Robinson Fayek
Keyword(s):  
Fuzzy Logic ◽  
Construction Projects ◽  
Labour Productivity ◽  
Membership Functions ◽  
Monitoring And Control ◽  
Construction Costs ◽  
Cost Overruns ◽  
Factors Affecting ◽  
Definition Of ◽  
The Cost

An interview survey of Alberta-based construction contractors was conducted in July and August 1998. The purpose of this survey was to elicit information on the factors that cause unanticipated project cost escalation during construction, from the contractor's perspective. This paper presents the findings of this survey and a proposed method of modeling the factors identified. The majority of factors identified impact labour productivity, which is a major source of cost overruns. A combination of subjective, objective, and secondary indicators are used to measure these factors and to assess their impact on project performance. The main conclusion of this survey is that many of the factors affecting the cost of construction are evaluated in subjective and imprecise terms and are difficult to quantify. This paper presents a method of modeling these factors using fuzzy membership functions, which capture the imprecision and subjectivity associated with the measurement of these factors. It discusses a basis for the definition of these membership functions and a method of calibrating these functions to make them more widely applicable to suit different contexts. These membership functions are being incorporated in a set of expert rules, which reason about the factors affecting costs, their impact on the project, and the appropriate corrective actions. These expert rules are being developed as part of a fuzzy expert system for construction project monitoring and control. A method of calibrating membership functions to suit individual contexts is currently being developed, which would be a significant advancement in the area of fuzzy logic. Key words: construction, costs, expert systems, fuzzy logic, project control, survey.

scholarly journals The Factors Affecting Labour Productivity in the Construction of Prestressed Concrete Buildings in Ghana

2021 ◽  
Author(s):  
Muhammad Akbar ◽  
Kojo Kumah Darkwah ◽  
Azka Amin ◽  
Pan Huali ◽  
Ou Guoqiang ◽  
...  
Keyword(s):  
Prestressed Concrete ◽  
Construction Projects ◽  
Labour Productivity ◽  
Poor Quality ◽  
Background Information ◽  
Factors Affecting ◽  
Concrete Buildings ◽  
Construction Company ◽  
And Performance ◽  
The Relationship

The construction industries face several challenges related to productivity. Productivity mainly depends upon labour effort and performance. The poor productivity of labour is one of the major reasons of time over-runs and increasing cost in construction projects. Our study aims to build a comprehensive assessment on the relationship between various factors that affect labour productivity in the construction of prestressed concrete Buildings in Ghana. A sample of 200 re-spondents collected from workers of Construction Company in Ghana. The questionnaire was designed which comprises two parts; the first part contains background information of the staff of construction company while second section explores the opinion of the staff regarding factors af-fecting labour productivity. The Smart-PLS was utilized to analyze and estimate the relationship among construct variables. By utilizing relative importance index and multiple linear regressions, it is identified that the management factor such as inadequate incentives; material factor such as poor quality of material; labour factors such as poor quality and training of labors; supervision factor such as incompetence of site supervisor; equipment factor such as frequent damage of equipment have a negative and significant relationship with labour productivity in the construc-tion of prestressed concrete buildings in Ghana. The findings of this study recommend that in order to improve labour productivity, the construction industries must conduct labour productivity measurements by adopting schedule for procurement of materials, safety programs, motivational system, and frequent meeting with project professionals.

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 Factors Affecting the Labour Productivity in Construction Projects of Pakistan

2019 ◽  
Vol 266 ◽  
pp. 05010 ◽  
Author(s):  
Ismail Abdul Rahman ◽  
Aftab Hameed Memon ◽  
Abdul Qadir Memon ◽  
Mutahar Ali Shaikh ◽  
Fida Siddiqui
Keyword(s):  
Construction Projects ◽  
Labour Productivity ◽  
Weighted Average ◽  
Efficient Production ◽  
Microsoft Excel ◽  
Factors Affecting ◽  
The Common ◽  
Spss Software ◽  
Weather Changes ◽  
Construction Works

Construction projects are considered crucial in every developed and developing country from the perspective of economic and social development. Thus, it is mandatory to achieve successful completion of the project. Efficient production is one of the significant criteria in ensuring the success of projects. An efficient production, labour productivity is considered an important aspect. Labour productivity is affected by several factors which are essential to study for productivity improvements. Since in Pakistan, labour productivity is one of the least studied areas within the construction industry. Hence, this paper focused on determining the common factors which have influenced the labour productivity. A survey among the construction practitioners included 33 identified factors from literature. A total of 150 questionnaire forms were distributed, and only 54 completed data forms were received back. These forms were used to analyse statistically using frequency analysis with SPSS software and weighted average (WA) calculation with Microsoft Excel application. The results indicated 1 factor as very often occurring, and other 32 factors were reported as often occurring during construction works while WA value for significance revealed that there are seven factors which have extremely significant while other 26 factors lie in the category of very significant. Those seven dominating factors reported as extremely significant are the misuse of schedule, the increase of labourer age, weather changes, tool and equipment shortages, violation of safety precautions, working seven days per week without taking a holiday and lack of financial motivation system.

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.

scholarly journals Labour productivity: Perception of site managers on building projects

2019 ◽  
Vol 2 (Issue 1) ◽  
Author(s):  
O.J Oladiran ◽  
D. Onatayo
Keyword(s):  
Construction Projects ◽  
Labour Productivity ◽  
Technical Specification ◽  
Sampling Technique ◽  
Building Projects ◽  
Mean Values ◽  
Factors Affecting ◽  
Construction Organizations ◽  
Management Policies ◽  
Site Managers

A successful construction project has many important components, one of which is labour. Many construction projects fail to achieve their goal due to poor labour productivity. Thus, this research evaluated labour productivity on building projects based on the perception of site managers. The objectives identified the factors that affect the productivity of construction operatives, examined the importance of factors affecting labour productivity, assessed the management policies to improve productivity of workers on site, and suggested solutions to the problem of labour productivity on building sites. The sample frame consisted of the 26 construction organizations registered with Lagos Chamber of Commerce and Industry (L.C.C.I). Random sampling technique was used to administer 62 questionnaires to site managers of the building projects of the 26 construction organizations in the frame. Data obtained were analysed using frequency, mean and relative importance index. The findings showed that topmost among the factors that affect labour productivity are clarity of technical specification, equipment shortages, skill of labour, coordination level among design disciplines, payment delay, and material shortage with mean values of 4.24, 4.20, 4.20, 4.17 and 4.17 respectively. Training, welfare amenities and specialization with mean values of 4.36, 4.02 and 4.00 ranked highest among the management policies for improving operatives’ productivity. It is recommended that operatives should have access to equipment; payment should also be done promptly; in addition to organizations supporting operatives on regular training on relevant skills

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