• Title, Summary, Keyword: construction productivity

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Analysis on the Factors Influencing Construction Productivity for Management of Construction Productivity Information (건설 생산성 정보 관리를 위한 생산성 영향요인 분석)

  • Moon, Woo-Kyoung;Han, Sung-Hun;Kim, Yea-Sang;Kim, Young-Suk;Kim, Sang-Bum
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • pp.422-426
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    • 2006
  • Productivity is one of the very important index that measures efficiency of production activities in industry, enterprises and the building industry as well. None the less, the concept of construction productivity is not so clear that productivity management in the building industry have been performed by experience or intuition, productivity related data have not been analyzed through effective productivity management, because structured definition and classification of factors influencing construction productivity did not exist so that it has not been known what information explain each of them. In order to solve this problem, at first construction productivity and factors influencing construction productivity are defined and classified into three groups; (1)Project factors influencing construction productivity (2)Management factors influencing construction productivity (3)Activity factors influencing construction productivity. To find out relation between construction productivity and factors influencing construction productivity, a questionnaire survey for construction managers in the building industry has been conducted.

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Construction Projects Productivity in West African country of Benin: Case of Ground Earthworks

  • Akogbe, Romuald Kokou;Feng, Xin;Zhou, Jing
    • Journal of Construction Engineering and Project Management
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    • v.5 no.2
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    • pp.16-23
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    • 2015
  • In this paper, a survey related to excavation construction activities among national and international construction companies was conducted to evaluate site productivity in construction industry. To analyze the respective productivity levels of each construction company, a benchmarking measures analysis that featured calculations of the performance ratio (PR) and performance management index (PMI) was performed. As a result of these analyses, it has been found that the work performed by local companies was marked by lower productivity and that of international companies was characterized by good productivity. Further analysis of construction workforce resources P% revealed that a construction company's productivity is largely dependent on production capacity and consumption resources, which means that the retention of skilled workers and utilization of high-quality resources yields the highest level of productivity. These results suggest that for a local construction company to be competitive in the construction work market, it must retrain skilled craftspeople, foremen, engineers, and project managers, and strengthen its building capability by leveraging new equipment and technologies.

The Study on the Analysis of Factors Decreasing Construction Labor-Productivity Using AHP Method (AHP기법을 이용한 건설노동생산성 저하요인 분석에 관한 연구)

  • Pyo Young-Min;Bae Soo-Yong;Ryu Hyoung-Han;Lee Sang-Beom
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.141-147
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    • 2005
  • Usually, processing whole project or a part of frame work delays due to acceleration, changing orders, management, characters of project. overtime, worker crowding, early occupation in the field of construction. Through a whole project, these factors cause decreasing construction labor-productivity which is the most dependent in business of construction. These kind of decreasing of construction labor-productivity cause many negative effects, just as extension of time, increasing cost in project of construction. Regardless of characters of construction or decreasing labor-productivity, extension of time is a incident which needs acceleration, also it cause a high possibility of claim and dispute. The productivity has just a broad meaning in business of construction. That's why it's difficult to apply in the field of construction. Especially, factors increasing or decreasing labor-productivity is defined by analysis of working as qualitative and outlined evaluation. However, study of the each factor decreasing construction labor-productivity analysis has not researched, because of difficulty of systematic measurement and management. The existed studies about management of productivity are just focused on estimation of productivity, not on evaluation of productivity. It was true that I couldn't examine clearly about the analysis of how much important per each the factor which have influence on labor-productivity because of the characteristic as qualitative that the labor productivity have On this study, i tried to get the factors decreasing of labor- productivity with gathering opinions of panels of expert's studies about the factors decreasing of labor-productivity on project of construction through Delphi method and i evaluated the result factors as quantitatively and subjectively about importance of factors decreasing construction labor-productivity Analysis, using AHP Method by Saaty. Also, using Delphi and AHP method, 1 suggest substantiated method qualitative factors are measured by quantitative criteria.

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A Comparative Study on Construction Productivity Trends as Analyzed by Various Measures - South Korea, the U.S., the U.K., and Japan (1995-2015) - (측정지표에 따른 건설생산성 비교 - 한국, 미국, 영국, 일본(1995-2015) -)

  • Lee, Chijoo;Lee, Ghang;Won, Jongsung
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.35 no.4
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    • pp.175-184
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    • 2019
  • To improve productivity in the architecture, construction and engineering industry, it is critical to understand both current and historic trends in construction productivity. This study analyzes and compares construction productivity trends of South Korea, the U.S., the U.K., and Japan 1995 to 2015 using the following three measures: construction labor productivity, construction duration per floor, and construction duration per 1,000 m2 floor area. As the results, the international competitiveness of each country varied according to which measures were used to analyze them. Among the four countries, the construction labor productivity of the U.S. was the highest, followed by that of South Korea. South Korea also had the second highest productivity growth rate, following that of Japan. On the other hand, when analyzed from the perspective of construction duration, the construction productivity in South Korea appeared relatively lower than those of other countries. There were differences in the location of construction competitiveness of each country analyzed by various measures. Therefore, to accurately diagnose and improve the construction competitiveness in South Korea, strategies based on various measures are need to established simultaneously.

A Probabilistic Fuzzy Logic Approach to Identify Productivity Factors in Indian Construction Projects

  • Princy, J. Darwin;Shanmugapriya, S.
    • Journal of Construction Engineering and Project Management
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    • v.7 no.3
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    • pp.39-55
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    • 2017
  • Preeminent performance of construction industry are unattainable with poor productivity resulting in time and cost over runs. Enhancement in productivity cannot be achieved without identifying and analyzing factors that adversely affect productivity. The objective therefore is to propose a productivity analysis model to quantify the probability of effect of factors influencing productivity by using fuzzy logic incorporated with relative importance index method, for various types of construction projects. To achieve this objective, a questionnaire survey was carried out targeting respondents of Indian construction industry, from four distinct projects, namely, residential, commercial, infrastructure and industrial projects. Based on questionnaire administered, the relative importance and ranks of factors demonstrated using relative importance index method. Probability assessment model to analyze productivity was then developed by using Fuzzy Logic Toolbox of MATLAB. The applicability of the proposed model was tested in seven construction projects and the probability of impact of factors on productivity evaluated. The results of application of model in the construction firms infers that the most contributing factor groups for most of the projects were discerned to be manpower, motivation and time group.

A Basic Study on the Correlation Analysis between Safety Perception Level of Domestic Construction Companies and Construction Productivity (국내 건설기업의 안전인식수준과 건설생산성간의 상관관계 분석 기초연구)

  • Jeon, Sang-Sub;Oh, Jun-Seok;Son, Seung-Hyun;Son, Ki-Young
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.47-48
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    • 2019
  • Currently, the government has made a lot of efforts to improve construction productivity but there are few studies which measure between safety perception level and productivity in the South Korean construction industry. Therefore, the objective of this study is to analyze correlation between safety perception level of domestic construction companies and construction productivity. To achieve the objective, first, the concept of safety perception level was defined. Second, the safety perception level and construction productivity were investigated in the case projects. Third, correlation analysis was conducted between safety perception level and productivity. As a result, it was concluded that a high level of safety perception of executive and manager would increase construction productivity. In addition, To improve the safety perception level in the construction company, it is suggested that the provision safety resources for managements and the equal communication system between workers and managements and the development safety education tools considering the worker's experience. In the future, these findings can be utilized to develop future evaluation tools for a safety perception level in domestic construction company.

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Collection and Utilization of the Construction Productivity Data and the Influence Factors Using Information Technology (IT 기술 기반의 건설 생산성 정보 및 영향요인의 수집 및 활용)

  • Lee, Hyun-Jung;Oh, Se-Wook;Kim, Young-Suk;Kim, Yae-Sang;Kim, Sang-Bun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • pp.548-553
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    • 2006
  • Activity-based productivity data can be used as an significant reference in many areas of project management such as performance evaluation and project planning. However, the existence of various factors influencing construction productivity makes it difficult to collect and analyze the productivity data. In the most of the domestic construction sites, there is no systematic method to collect and analyze the productivity data along with information on influencing factors; it is common to heavily rely on experience and intuition of field managers when dealing with construction productivity data. Therefore it is necessary to develop a management system for collecting and utilizing the productivity data as well as the factors influencing construction productivity. The main objective of this research is to define the construction productivity and its influencing factors at the activity level. In addition, methodologies on how to analyze the productivity data and to estimate productivity of future projects are proposed.

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The Development of a Construction Productivity Prediction Model Based on Data Mining (데이터 마이닝 기반의 건설 생산성 예측 모델 개발)

  • Woo, Gi-Beom;Ahn, Jy-Sung;Oh, Se-Wook;Kim, Young-Suk
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • pp.813-818
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    • 2007
  • Construction productivity is a key factor for efficiency evaluation of construction work process, project performance measurement, and basic data of work plan in construction industry. However, although construction productivity is important in construction industry, gathering methodology and analyzing methodology of productivity data are not well-organized therefore productivity data is not utilized in the construction industry The purpose of this study is to develop productivity prediction system using data mining technology based on activities and to suggest frameworks about productivity data collection, accumulation.

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Verification of the Use of Architectural PC for Improving the productivity in an Apartment Housing Project (공동주택 공사에서의 건축 외관용 PC 활용에 따른 생산성 향상 분석)

  • Lee, Hyun-Seok;Lee, Sang-Hyo;An, Byung-Ju;Lee, Yoon-Sun;Kim, Jae-Jun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • pp.670-673
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    • 2007
  • In Korea, it has recently occurred that problems of productivity and construction duration in the construction industry. If five days per week system come into effect, they'll become more urgent. The productivity of construction industry and competitive construction duration in Korea are too low. If post sale system becomes effective, construction companies will strive to improve productivity. Therefore, the objective of this study is to draw up Architectural PC as the alternative for productivity improving and analyze possibility of productivity improving by comparing with established method of construction.

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A Study on Productivity of Foreign Labors in Domestic Apartment Construction Site -Focused on Evaluation of Productivity and Productivity Impediment Factor- (건설현장에서 외국인 노동자의 생산성에 관한 연구 -생산성 및 생산성 저해인자 평가를 중심으로-)

  • Choi, Hee-Bok;Shin, Youn-Seuk;Kang, Kyung-In
    • Journal of the Korea Institute of Building Construction
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    • v.5 no.1
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    • pp.75-79
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    • 2005
  • The Korean society faces a new issue of accepting foreign workers. Foreign labors in construction industry reached about 400,000 recently. Thus they have become one of the essential resources to fill up insufficient labor supplies in construction industry. And it is important how to manage foreign labors efficiently. However there are few studies focused on this subject. Purpose of this study is to research productivity of foreign labors in the domestic construction site. So investigate the value of foreign labors. Also this study forecast elements effect on foreign labors productivity in the construction industry. And research what element is more important to improve productivity and what element is more difficult to manage. In the result, this study is expected to prospect effective method of foreign labor's management in the domestic construction industry, so contribute to utilize foreign labors more efficiently.