Research on the Methods of Cumulative Environment Impact Assessment in the High-Speed Railway Region

2014 ◽  
Vol 1051 ◽  
pp. 518-522
Author(s):  
Xiao Chen Duan ◽  
Jing Sun ◽  
Yi Gang Liang ◽  
Jing Na Cui ◽  
Zhao Yu Wang
Keyword(s):  
Impact Assessment ◽  
High Speed ◽  
Comprehensive Evaluation ◽  
Theory And Practice ◽  
Assessment Model ◽  
Environment Impact ◽  
Regional Environment ◽  
Cumulative Impact ◽  
High Speed Railway ◽  
Environment Impact Assessment

Combined with the characteristics of the high-speed railway regional environment system, the paper establishes a cumulative environment impact assessment model with the system dynamics in the high-speed railway regional, which is divided into three subsystems: economic, environment and pollution subsystems. Each subsystem is refined into a number of state indexes. The feedback relationships is set up between each state index and various subsystems, based on the Matrix method, Delphi, Analytic Hierarchy Process and environmental carrying capacity to establish comprehensive evaluation model of the cumulative environment impact assessment in the high-speed railway region. Finally the Chang-Yi high-speed railway is taken as an example.This paper is of the important theory and practice significance to promote the cumulative impact assessment level and social environment benefit of the high-speed railway regions.

scholarly journals Comprehensive Evaluation of Operating Speeds for High-Speed Railway: A Case Study of China High-Speed Railway

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Jiamin Zhang ◽  
Jiarui Zhang
Keyword(s):  
High Speed ◽  
Comprehensive Evaluation ◽  
Comprehensive Analysis ◽  
Ideal Solution ◽  
Environment Impact ◽  
High Speed Railway ◽  
Order Preference ◽  
Indicator Systems

This paper proposes the indicator systems and integrated desirability framework for comprehensive evaluation towards the operating speeds of high-speed railway (HSR). Speed is a crucial piece in the characterization of the HSR system. The debate about what is the most appropriate operating speed continues. The established indicator systems and integrated desirability framework can comprehensively evaluate the HSR operating speeds from stand points of the economic efficiency, operational efficiency, track capacity, operational security, and environment impact. Moreover, the integrated desirability framework, which is a combination of entropy-analytical hierarchy procedure (EAHP) and technique for order preference by similarity to ideal solution (TOPSIS), can output some references for selecting the most suitable speed regimes of HSR. The application of the desirability framework to the case of China high-speed railway (CHSR) is demonstrated concretely. Based on the case study of CHSR, the comprehensive analysis of the effectiveness of the indicator systems on HSR operating speeds is carried out. The case study shows that the proposed indicator systems and integrated desirability framework can be used to evaluate comprehensively the HSR operating speeds under various conditions.

Decision Insights for Shipbreaking using Environmental Impact Assessment

2018 ◽  
Vol 9 (1) ◽  
pp. 45-62 ◽  
Author(s):  
Joshin John ◽  
Rajiv Kumar Srivastava
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Environmental Parameters ◽  
Future Research ◽  
Environmental Damage ◽  
Environment Impact ◽  
International Agencies ◽  
Environment Impact Assessment ◽  
Decision Alternatives

This article describes how the shipbreaking industry has been under the microscope, more often in recent years, with scrutiny from governments, international agencies and environmental activists, on issues pertaining to sustainability in general and environmental impact in particular. Several cases of vessels-to-be-dismantled, by and large in yards located in South Asia, have been discussed in literature, with concerns on the modus operandi of dismantling end-of-life ships, and the mode of disposal of hazardous residual wastes. In this article, the authors review extant methodologies, and examine the decision alternatives available to shipbreakers, recyclers and waste material handlers to minimize damage to the environment. Impact assessment results using Open-LCA has been presented to demonstrate the relative impact loadings on various environmental parameters, from the path functions adopted. The results of the environmental impact assessment provide decision insights on various alternatives that may be appropriated in order to mitigate environmental damage. The article concludes with discussion, perspectives and future research directions to improve decision making for sustainable shipbreaking.

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