scholarly journals Factors Affecting Construction Labor Productivity in China: A Case Study of Chongqing

Author(s):  
Shilian Zhang ◽  
Yuxuan Wang ◽  
Yuhe Wang ◽  
Wenjun Fan

Labor productivity is an important indicator of Chinese construction industry development, so it has a positive influence on study the factors affecting construction labor productivity for the sustainable development in construction industry. Since Chongqing became one of Chinese municipality in 1997, construction industry had a rapid development. But the construction labor productivity in Chongqing is still low. Thus, this paper selects construction labor productivity data in Chongqing as the research object, and indicates labor productivity is affected by eight specific factors from economy, technology, capital, labor and management aspects. Based on the data, this paper uses principal component analysis (PCA) method and multiple linear regression (MLR) to analyze the relationship between labor productivity and affecting factors. The result reveals labor productivity in Chongqing is affected by the average wage in construction industry, GDP and construction and installation engineering investment. Meanwhile, a low labor productivity in Chongqing dues to a lack of technological innovation.

2021 ◽  
Vol 13 (10) ◽  
pp. 5401
Author(s):  
Hao Lu ◽  
Qin Zhang ◽  
Qinghong Cui ◽  
Yuanyuan Luo ◽  
Pardis Pishdad-Bozorgi ◽  
...  

Labor productivity is a significant indicator to measure the sustainable development potential and competitiveness of the construction industry. Under the background of the integration of global construction industry and information and communication technology (ICT), the pursuit of the growth of construction labor productivity (CLP) requires deepened understanding of how these technological advancements characterized by ICT take effect in the change of CLP as well as what the key factors are that led to the variation of CLP at this stage. The paper aims to investigate the effect of ICT progress on CLP and examine the key factors influencing CPL. Based on the data of 31 regions from the China Construction Industry Statistical Yearbook and the Local Statistical Yearbook during the period 2000–2018, this study proposed new methodology (Cobb–Douglas production function, growth rate model, and Malmquist Data Envelopment Analysis) for measuring the technology progress contribution and identified the key factors affecting the change of CLP. The analysis results illustrate that the information technology progress has a significant contribution to CLP growth, but the contribution rate is decreasing with the growing degree of development of the regional construction industry. Three main factors affecting the further improvement of CLP have been identified: human resources, research and development (R&D) investment, and ICT level. The findings can provide the decision-making reference and the general methodology for the local and international industry practitioners to improve the labor productivity performance of the construction sector.


2017 ◽  
Vol 22 (3) ◽  
pp. 252-268 ◽  
Author(s):  
Ernest Kissi ◽  
Theophilus Adjei-Kumi ◽  
Edward Badu ◽  
Emmanuel Bannor Boateng

Purpose Tender price remains an imperative parameter for clients in deciding whether to invest in a construction project, and it serves as a basis for tender price index (TPI) manipulations. This paper aims to examine the factors affecting tender price in the construction industry. Design/methodology/approach Based on the literature review, nine independent constructs and one dependent construct relating to tender pricing were identified. A structured questionnaire survey was conducted among quantity surveyors in Ghana. Partial least squares structural equation modelling (PLS-SEM) examined the influences of various constructs on tender price development (TPD) and the relationships among TPD and TPI. Findings Results showed that cultural attributes, client attributes, contractor attributes; contract procedures and procurement methods; consultant and design team; external factors and market conditions; project attributes; sustainable and technological attributes; and TPI have a positive influence on tender price, whereas fraudulent attributes exert a negative influence. Practical implications The findings offer construction professionals broader understanding of factors that affect tender pricing. The results may be used in professional decision-making in the pricing of construction projects, as they offer clearer causal relations between how each construct will influence pricing. Originality/value This study adds to the body of construction pricing knowledge by establishing the relationships and degree of influences of various factors on tender price. These findings provide a valuable reference for practitioners.


Author(s):  
Hock Seng Raymond Yip ◽  
Herman Shah Anuar

In the area of the construction sector, the primary concern is economic growth. There are many issues and challenges associated with it. The growth and rapid development of this industry put their players, mainly the construction firms feeling the heat by competing with each other. The main challenge is the completion period for a particular project. This study was done in Manila, Philippines, where Design and Build (D&B) method has gained much interest and considered very important today. The rise of new innovative systems saw the emergence of new factors in the construction industry that will become future adoption. This study focuses on factors affecting the successful completion period of the construction industry, whereby it is very crucial for the country's economic and market development. A quantitative research methodology was applied in this study. A total of 967 survey questionnaires sent out, and only 396 respondents fit to be analysed. Respondents involved were contractors, consultants, and developers. It was learned that critical success factors in project management play significant roles in driving projects to examine the determinants of success completion time of Design & Build construction projects. Findings from this study shall be used by the authority in drafting a policy guideline for future construction development. It is hoped that this study provides a better understanding of construction challenges for future undertaking.


Author(s):  
Rabia Almamlook ◽  
Mohamed Bzizi ◽  
Maha Al-Kbisbeh ◽  
Tgarid Ali ◽  
Ekbal Almajiri

2013 ◽  
Vol 291-294 ◽  
pp. 1605-1609
Author(s):  
Wen Yan Guo ◽  
Li Ma ◽  
Qiong Wang ◽  
Xiao Liu Shen

This paper studies the coordinated development of Beijing's population, resources, environment, economic and society. With the rapid development of the city, Beijing’s population, society and economic is getting more and more contradictive against its resources and environment, under which circumstance a scientific study on the coordinated development is urgently required. This essay is based on the data of last 10 years of Beijing, and formulates a PREES model of the PREES model in Beijing. This study uses the method of principal component analysis via SPSS, establishes the coordination degree evaluation system of Beijing’s population, resources, environment, economic and society, and runs an empirical analysis afterward. This essay calculates the coordination degree of Beijing’s population, resources, environment, economic and society, analyzes and studies the main issues in Beijing’s coordinated development, and gives relative suggestions.


Author(s):  
Ravisankar K.L. ◽  
Bragateeswaran T

The Construction industry of India is an important indicator of the growth as it generates investment opportunities across various related sectors. Delay in construction projects is considered one of the most common problems causing a multitude of negative effects on the construction projects. Construction delays can be defined as the late completion of work compared to the planned schedule or contract schedule. Construction delays can be minimized only when their cause are identified. The objective of this study was to identify the major causes of construction delays. In this context the management of the delay may influence the financial performance of the project, since the overall value of contractual penalties may exceed ten percentage or more than that of the project budget. This study was carried out based on literature review and a questionnaire survey. The data for this study will be gathering through a detailed questionnaire survey. The questionnaire consists of total factors of seventeen group were contributed to the causes of construction delay based on literature review. In that seventeen groups have been consist of total 50 factors for delay. The questionnaire form is forwarded to various construction industries through email and in personal. The objectives of the study were successfully achieved. The top five most important factors that contributed to the causes of delays were Delay in financial support by owner to the contractor (Stage by stage payment), Design errors made by designers due to unfamiliarity with local conditions & environment, Equipment allocation problem, Poor site management & Inaccurate site investigation, Fluctuation of prices. To minimize delay in construction projects it has been identified that the top three effective methods of minimizing construction delays includes: site management and supervision, effective strategic planning, and clear information and communication channels.


2020 ◽  
Vol 194 ◽  
pp. 05014
Author(s):  
Yudian Li ◽  
Na Li ◽  
Yanjun Shi ◽  
Zhijun Jia

With the rapid development of urbanization in China, people’s requirements for the quality of life and environment are constantly improving. However, the shortage of resources and the deterioration of environment are becoming more and more serious. Environmental protection has become the only way for the sustainable development of society. Therefore, the application of more and more new green building materials has become the key to the sustainable development of the construction industry. In the face of the rapid development of modern construction industry, engineering quality and functional requirements have become the basic requirements, the green environmental protection has become a higher requirement. The application of green environmental protection building materials in engineering construction is the main development direction of the transformation of modern construction industry. At the same time, it conforms to the policy of environmentally sustainable development of all sectors of society, and promotes the construction industry to meet the higher requirements of green environmental protection living environment. This paper studied the performance and waterproof mechanism of a kind of high polymer (HDPE) self-adhered waterproofing membrane and its application in construction. Compared with the traditional waterproofing membrane, the high polymer self-adhered waterproofing membrane can give full play to the advantages of environmental protection on the premise of meeting the building quality.


Atmosphere ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1675
Author(s):  
Ruilian Yu ◽  
Yiling Lin ◽  
Jiahui Zou ◽  
Yangbin Dan ◽  
Chen Cheng

In recent years, atmospheric ozone pollution has become more and more serious in many areas of China due to the rapid development of industrialization and urbanization. The increase in atmospheric ozone concentration will not only cause harm to the human respiratory tract, nervous system and immune system, but also cause obvious harm to crops, which will lead to reductions in crop production. Therefore, the study of atmospheric ozone pollution should not be ignored in research on the atmospheric environment. In this paper, we summarized the formation mechanisms of atmospheric ozone, the spatiotemporal distribution characteristics of atmospheric ozone in some areas of China, the relationship between atmospheric ozone and its precursors, and the main factors affecting the concentration of atmospheric ozone. Then, the control countermeasures against atmospheric ozone pollution were put forward in combination with the actual situation in China.


2021 ◽  
Vol 91 ◽  
pp. 01035
Author(s):  
Valerii Matskul ◽  
Anatoliy Kovalyov ◽  
Valentyn Chernyshev ◽  
Diana Okara

The article examines the level of sustainable development of the travel business in the Odessa region of Ukraine. This level is evaluated as a latent indicator, which is characterized by a certain set of signs-symptoms. The methodology used for modeling is Partial Least Squares-Path Modelling (or PLS-PM) and the method Time-Wise Multi-Way Principal Component Analysis. This approach allowed us to identify and evaluate latent and explicit factors affecting the sustainable development of travel business in the Odessa region.


2007 ◽  
Vol 34 (7) ◽  
pp. 803-808 ◽  
Author(s):  
Rifat Sonmez

Scheduled and occasional overtime practices have been used frequently in the construction industry. Past research indicated that continuous scheduled overtime could have a negative effect on labor productivity. The impact of occasional overtime on productivity is generally expected to be less than the impact of scheduled overtime. However, few studies have evaluated the effects of occasional overtime on productivity, which is the main objective of this paper. Productivity data for 234 weeks were collected for quantitative analysis. The t test was performed initially to determine the statistical significance of the impact of occasional overtime. The assessment of productivity data samples revealed possible deviations from the normal distribution. The Wilcoxon rank sum test was implemented as an alternative to the t test. The results of quantitative analysis indicate that moderate levels of occasional overtime did not have a significant impact on productivity. Based on the findings in this study, the potential advantages of occasional overtime practices are discussed.Key words: construction industry, labor productivity, occasional overtime, normality.


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