• Title/Summary/Keyword: Construction Productivity

Search Result 1,104, Processing Time 0.034 seconds

A Case Study on Assessing the Productivity of a BIM team in a Construction Company

  • Huang, Chien-Hsun;Hsieh, Shang-Hsien
    • International conference on construction engineering and project management
    • /
    • 2015.10a
    • /
    • pp.259-262
    • /
    • 2015
  • Due to the labor-intensiveness, high investment cost, long execution time, frequent change orders, and many stakeholders in a BIM project, a BIM manager is bound to face a lot of risks to make decisions in cost managing process. Since the productivity of a BIM team will affect the execution cost, this study investigates a simple method of assessing the productivity of a BIM team using the working timesheet records of the team. In this research, the productivity of a BIM team is defined as the effective working floor area (in square meters) of BIM uses per labor-time (in man-months) spent by the team. After the applicability of this method is tested by regression analysis using data from 5 real BIM projects in the construction phase, it is found that the simple productivity definition adopted in the method, although easy-to-implement, does not produce a statistically constant productivity value. More research is therefore needed in the future to devise better indicator(s) for assessing the productivity of a BIM team.

  • PDF

Causal Relationship Analysis of the Factors Lowering Productivity in Construction Job Site (건축공사 현장의 생산성 저하요인 인과관계 구조분석)

  • Jung, Yunho;Kim, Dongwook;Hong, Minki;Jang, Hyounseung
    • Korean Journal of Construction Engineering and Management
    • /
    • v.21 no.1
    • /
    • pp.99-110
    • /
    • 2020
  • Productivity is also a very important indicator in the construction industry as it can measure economic growth and the efficiency of each related production activity, either at the industrial level or at the corporate level. Technical factors indeed have a great impact on productivity, but in order to improve productivity in the actual construction industry, various productivity factors must be analyzed first, and the efforts to improve productivity at the project level are more important than the efforts to improve productivity at the construction industry level, which are addressed from a macro perspective. This study was designed to provide basic data for efficient productivity management activities of the project by selecting priority management factors through the causal analysis of the factors and the elicitation of the productivity degradation factors at the construction site to improve the quality of the construction industry.

A Study on the Improvement for Productivity of Construction Subcontract (건설 하도급 생산성 개선 방안 연구)

  • Lee Tai Sik;Jung Bo Gun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
    • /
    • autumn
    • /
    • pp.337-340
    • /
    • 2001
  • Construction market structure give to third subcontract from contractor that received bid. A general contractor is subcontract to subcontractor that construct final product. When the subcontractor is related with productivity on the site, a study is lack to subcontractor productivity. The property of construction industry include many subcontractor at one project. If a subcontractor will improve productivity, total productivity would improve on the site. We will understand about subcontractor productivity and suggest about productivity method.

  • PDF

Productivity Measurement and Analysis on Factors in Steel Erection (철골세우기 작업의 영향요인별 현장생산성 측정 및 분석)

  • Huh, Young-Ki;Lee, Ji-Yong;Yun, Seok-Heon;Tae, Yong-Ho;Ahn, Bang-Ryul
    • Journal of the Korea Institute of Building Construction
    • /
    • v.9 no.2
    • /
    • pp.31-38
    • /
    • 2009
  • In today's construction industry, buildings have been more complicated and higher, the demands of steel works have been increasingly concerned, which makes the schedule planning and management more significant. However, in actual construction sites, management is more based on a manager's construction experience than productivity data accumulated in previous projects. Moreover, most of the existing studies also featured a theoretical approach rather than an analysis of data straightforwardly collected in sites. In this study, a steel-erection site was visited to collect productivity data. The study found that there were significant disparities between aboveground work productivity and underground work; one tower crane operated work and two tower crane operated; and work productivity conducted in clear weather condition, cloud and rainy. However, the productivities of 'first node on ground' and 'second node on ground' were estimated similar. The productivity data collected and factors affecting the productivity will help managers to plan and control their similar steel-erection works. This study will also be beneficial for those performing related studies.

Key motivating factors affecting skilled workers' productivity in Construction projects

  • Enshassi, Adnan;Mahdi, Mahdi
    • International conference on construction engineering and project management
    • /
    • 2015.10a
    • /
    • pp.142-146
    • /
    • 2015
  • Human resources development is considered a critical issue for improving productivity of workers in construction industry. The aim of this study is to identify and rank the key motivating factors that impact skilled workers productivity according to their relative importance. A total of 27 factors were identified through a literature review, which were categorized into 2 group financial and un-financial motivators. A questionnaire instrument was adopted in this study. The study revealed that the most significant group which affected skilled workers' productivity in construction projects was financial group with the recognition of the un-financial group importance. The results emphasized that the financial group has an edge over the un-financial group which reflect the priority of need for the respondents. The results indicated that the un-financial group represents a backbone in its importance after the financial group which reflects that un-financial factors can improve productivity. The findings showed that the provision of companies to safety conditions factor such as protective safety clothing and protective equipment was ranked very low by the respondents. This is due to the dominant culture of the workers as well as the lack of their awareness regarding their own safety and lack of companies' interest in safety and health for workers. Construction companies are advised to take the key motivating factors obtained from the results of this study into serious consideration in order to improve the satisfaction of their workers and improve their productivity.

  • PDF

Development of the Strategy for Construction Production Improvement by System Thinking (시스템 사고를 활용한 건축생산성향상 전략 수립에 관한 연구)

  • Kim, Bong-Sik;Lee, Yoon-Sun;Hong, Jung-Seok;Kim, Jae-Jun
    • Korean Journal of Construction Engineering and Management
    • /
    • v.9 no.6
    • /
    • pp.156-163
    • /
    • 2008
  • Recently, Construction market is contracted by economic slump and regulation. As the solution of this plan, construction productivity is gathering strength. However, the study on the productivity in construction section is insufficient until now. Construction section has many factor about productivity. The point of this study, we analysis the factor of construction productivity improvement and relationship with system thinking. And we show the strategy of construction productivity improvement.

Analysis of Trends in the Labor Productivity and Actual Amount of Labor Input in the Reinforced Concrete Construction of Health Facilities (의료시설 철근콘크리트공사에서 생산성과 실투입 노무량의 추이에 관한 분석)

  • Jeong, Jae-Woong;Jeon, Sang-Hoon;Koo, Kyo-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2015.05a
    • /
    • pp.103-104
    • /
    • 2015
  • Process management of reinforced concrete construction that many labor quantity and cost is put at a construction site is very important and gives a lot of influence on the subsequent process. Thus, there will be only used as a useful tool for process control by medical facilities and trend analysis of the flow of the process by the amount of labor input and productivity in reinforced concrete construction. productivity by type and quantity, and comparative analysis. In addition, it is necessary to calculate the standard of estimate and real commitment to labor productivity by type and quantity, and comparative analysis.

  • PDF

A COMPARATIVE ANALYSIS ON EFFICIENCY AND TOTAL FACTOR PRODUCTIVITY IN CONSTRUCTION FIRMS BETWEEN KOREA AND JAPAN

  • J.L. Park;S.S. Kim;D.J. Kwark;J.G. Park;J.H. Kim;J.J. Kim
    • International conference on construction engineering and project management
    • /
    • 2013.01a
    • /
    • pp.315-320
    • /
    • 2013
  • The aim of this study is to compare efficiency and Total Factor Productivity(TFP) between Korean and Japanese construction firms in Korea and Japan over the period of 2005-2011. The results of this study are as follows. Efficiency scores of Korean construction firms are 0.797, and Japanese construction firms are 0.921. Second, annual total factor productivity growth of Korean construction firms is 0.5% and technical progress do much for TFP decrease. However Japanese construction firms marked annual increasing of 2.5% of TFP. Third, technical progress contributed in TFP increase of construction firms in Korea. Korean construction firms, however, relatively lagged behind Japanese construction firms in technical progress. Therefore, Korean construction firms need strategies to achieve technical advances including adopting new technology or process innovation to maintain competitiveness, survive, and develop in the future competition with Japan.

  • PDF

OLAP and Decision Tree Analysis of Productivity Affected by Construction Duration Impact Factors (공사기간 영향요인에 따른 생산성의 OLAP 분석과 의사결정트리 분석)

  • Ryu, Han-Guk
    • Journal of the Korea Institute of Building Construction
    • /
    • v.11 no.2
    • /
    • pp.100-107
    • /
    • 2011
  • As construction duration significantly influences the performance and the success of construction projects, it is necessary to appropriately manage the impact factors affecting construction duration. Recently, interest in the construction industry has been rising due to the recent change in the construction legal system, and the competition among the construction companies on construction time. However, the impact factors are extremely diverse. The existing productivity data on impact factors is not sufficient to properly identify the impact factor and measure the productivity from various perspectives, such as subcontractor, time, crew, work and so on. In this respect, a multidimensional analysis by a data warehouse is very helpful in order to view the manner in which productivity is affected by impact factors from various perspectives. Therefore, this research proposes a method that effectively takes the diverse productivity data of impact factors, and generates a multidimensional analysis. Decision tree analysis, a data mining technique, is also applied in this research in order to supply construction managers with appropriate productivity data on impact factors during the construction management process.

Development of Simulation Model for Earthwork Considering Factors Affecting Construction Productivity (생산성 영향요인을 고려한 건설현장 토공사 시뮬레이션 모델 개발)

  • Sa, Sewon;Lee, Chanwoo;Cho, Hunhee;Kang, Kyeong-In
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2021.05a
    • /
    • pp.149-150
    • /
    • 2021
  • Earthwork is the starting work of construction process, which has the greatest impact on the productivity of the construction project among the works. However, it is difficult to derive accurate productivity becuase the earthwork plan is affected by geological condition of the jobsite. Therefore, a simulation model for productivity analysis of earthwork was developed using CYCLONE modeling method in this study. In this paper, simulation model was made considering the impact factors of earthwork productivity. The proposed model can be utilized for sensitivity analysis in future studies.

  • PDF