Comparison of Principal Factors between China Actual Environmental Risk (CAER) and China Zero Environmental Risk (CZER): Project Angle

2012 ◽  
Vol 550-553 ◽  
pp. 2263-2269
Author(s):  
Chang Qing Liu

Studies on comparison of principal factors between CAER (China Actual Environmental Risk) and CZER (China Zero Environmental Risk) from Project Angle are seldom found, so we studied the theme above in this thesis. By analysis, we have known that on one hand, there are such aspects in common as projects for resources excavation, and refinement, etc., projects for primary industries, other non-living projects, waste disposal, and general management between CAER and CZER. On the other hand, they are different in such aspects as chemical engineering projects and living projects only for CAER, and energy projects and public construction projects only for CZER. And our related advice is as follows: first, strict management on production of waste from such projects as public construction projects, resources excavation and refinement, natural resources, projects for primary industries, and other non-living projects. Secondly great encouragement to environment-friendly technological innovations in waste disposal, etc..

2012 ◽  
Vol 610-613 ◽  
pp. 3144-3148
Author(s):  
Chang Qing Liu

Studies on principal factors preventing CER (China Environmental Risk) from Project Angle are seldom found, so we studied principal factors preventing CER (China Environmental Risk) from Project Angle in this thesis, including their selection, sequence and contribution. By our analysis, principal factors preventing CER (China Environmental Risk) from project angle can be ordered by contribution as follows: general management, projects for primary industries, energy projects, and public transportation projects. And our related advice is as follows: first, careful protection of natural environment. Secondly strict surveillance on production of waste from such projects as projects for primary industries, energy projects, and public transportation projects, etc. by market management, and public management, etc.. And thirdly great encouragement to arouse interest in technological innovations friendly with the environment in waste disposal, etc..


2012 ◽  
Vol 524-527 ◽  
pp. 3344-3349
Author(s):  
Chang Qing Liu

Studies on comparison of principal factors between CAER (China Actual Environmental Risk) and CZER (China Zero Environmental Risk) from Behavior Angle are seldom found, so we studied the theme above in this thesis. By analysis, we have known that on one hand, there are such aspects in common as natural cause, production action, living action, production waste disposal, and living waste disposal between CAER and CZER. On the other hand, they are different in such aspects as Government surveillance only for CAER, and public management and market management only for CZER. And our related advice is as follows: first, careful protection of natural environment. Secondly strict surveillance on production of waste from such behaviors as enterprise production and human living action by market management, public management, and Government surveillance, etc.. And thirdly great encouragement to arouse interest in technological innovations friendly with the environment in waste disposal, etc..


2012 ◽  
Vol 482-484 ◽  
pp. 2065-2069
Author(s):  
Chang Qing Liu

Studies on principal factors preventing CER (China Environmental Risk) from Behavior Angle are seldom found, so we studied principal factors preventing CER from Behavior Angle, including their selection, contribution and sequence in this thesis. By our analysis, principal factors preventing CER from Behavior Angle can be ordered by contribution as follows: production waste disposal, living waste disposal, market management, public management, natural cause, living action, and production action. And our related advice is as follows: first, careful protection of natural environment. Secondly strict surveillance on production of waste from such behaviors as enterprise production and human living action by market management and public management, etc.. And thirdly great encouragement to arouse interest in technological innovations friendly with the environment in waste disposal, etc..


2012 ◽  
Vol 178-181 ◽  
pp. 763-768
Author(s):  
Chang Qing Liu

Studies on principal factors preventing CER (China Environmental Risk) from Area Angle are seldom found, so we studied this theme in this thesis. By our analysis, principal factors can be ordered by contribution as follows: Xinjiang, Guangdong, Jiangxi, and Henan. And our related advice is as follows: first, careful protection of natural environment. Secondly strict surveillance on production of waste from enterprise production and human living action, etc.. Thirdly great encouragement to arouse interest in technological innovations friendly with the environment in waste disposal, etc.. And fourthly different emphasis of management in different areas, such as pollution of resources excavation and refinement in Xinjiang, industry pollution and water pollution in Guangdong, food quality and farming pollution in Jiangxi, and food quality, pollution of resources excavation and refinement, and water pollution in Henan, etc..


2013 ◽  
Vol 19 (1) ◽  
pp. 121-135 ◽  
Author(s):  
Ercan Erdis

The current public procurement law (Law No. 4734) was established in Turkey in 2003. The current law has fundamental differences from the previous one, Law No. 2886, in that the current law's main objective is to increase the effective use of public resources. Although the current law was enacted nine years ago, no in-depth research has been undertaken related to the extent of public savings. Thus, the aim of this research is to analyze the performance of public investments for construction with respect to their success in achieving on time and within budget completion. Additionally, a comparison between the completion duration and budget of construction projects undertaken under the current and the previous law is presented. To achieve these goals, historical contract documents addressing 878 and 575 public construction projects undertaken under two laws, respectively, were analyzed. In this context, the data mining method, including decision trees, artificial neural network, and support vector machines, was applied to predict the duration and cost deviations of the construction projects during the tender process, and the results were compared. It was demonstrated that the current law has contributed substantially towards the completion of the projects within estimated or envisaged durations and costs. The findings of this research can be generalized to countries with similar economical and organizational structures with Turkey.


2014 ◽  
Vol 21 (1) ◽  
pp. 111-126 ◽  
Author(s):  
Palaneeswaran Ekambaram ◽  
Peter E.D. Love ◽  
Mohan M. Kumaraswamy ◽  
Thomas S.T. Ng

Purpose – Rework is an endemic problem in construction projects and has been identified as being a significant factor contributing cost and schedule overruns. Causal ascription is necessary to obtain knowledge about the underlying nature of rework so that appropriate prevention mechanisms can be put in place. The paper aims to discuss these issues. Design/methodology/approach – Using a supervised questionnaire survey and case-study interviews, data from 112 building and engineering projects about the sources and causes of rework in projects were obtained. A multivariate exploration was conducted to examine the underlying relationships between rework variables. Findings – The analysis revealed that there was a significant difference between rework causes for building and civil engineering projects. The set of associations explored in the analyses will be useful to develop a generic causal model to examine the quantitative impact of rework on project performance so that appropriate prevention strategies can be identified and developed. Research limitations/implications – The limitations include: small data set (112 projects), which include 75 from building and 37 from civil engineering projects. Practical implications – Meaningful insights into the rework occurrences in construction projects will pave pathways for rational mitigation and effective management measures. Originality/value – To date there has been limited empirical research that has sought to determine the causal ascription of rework, particularly in Hong Kong.


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