scholarly journals GIS-Based Evaluation Method for Accessibility of Social Infrastructure Facilities

2021 ◽  
Vol 11 (12) ◽  
pp. 5581
Author(s):  
Hayeon Yhee ◽  
Sungpyo Kim ◽  
Sanghyeok Kang
Keyword(s):  
South Korea ◽  
Travel Time ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Weighted Average ◽  
Population Based ◽  
Social Infrastructure ◽  
Residential Areas ◽  
Poor Access ◽  
The Social

Social infrastructure is provided to improve the quality of life of residents. There are two approaches to social infrastructure planning: (1) a population-based approach and (2) an access-based approach. A plan for the social infrastructure facilities in South Korea has been developed based on the population or number of households in a region. Recently, the South Korean government presented a guideline in which accessibility is included in the criteria. This study proposes a comprehensive evaluation method for the accessibility of social infrastructure and for identifying residential areas with poor access. To obtain the travel time between the residence and the social infrastructure facility, we employed a navigation application programming interface that provides a travel time that reflects the resistances in an actual situation. The accessibility index (AI) is defined as a population-weighted average travel time. We also identified residential areas with poor access to social infrastructure by creating accessibility maps. This study includes social infrastructure facilities, such as parks, libraries, elementary schools, childcare centers, kindergartens, and sports facilities. The method proposed in this study was applied to Namdong-gu, Incheon Metropolitan City, South Korea, to evaluate its applicability. The proposed method has advantages in that (1) the AI is easy to understand because it represents an intuitive index for the overall accessibility in minutes of a region, and (2) accessibility maps effectively identify residential areas with poor access.

Comprehensive Evaluation Model of Resource Allocation for Construction Programme

2014 ◽  
Vol 584-586 ◽  
pp. 2215-2219
Author(s):  
Yi Xuan Wang ◽  
Ying Wei Ren ◽  
Yong Heng Yao
Keyword(s):  
Resource Allocation ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Weighted Average ◽  
Fuzzy Comprehensive Evaluation ◽  
Analytic Hierarchy ◽  
Engineering Construction ◽  
Correlation Degree ◽  
Comprehensive Evaluation Model

According to the characteristics of resource allocation for engineering construction programme, the comprehensive evaluation model of resource allocation rationality for programme is established with the combination of analytic hierarchy process and fuzzy comprehensive evaluation method. The rationality of resource allocation for programme is evaluated objectively based on the assessment of correlation degree between monomer project and the programme and the evaluation of resource allocation rationality for monomer projects. And the evaluation results have been analyzed and sorted through the principle of weighted average.

The Environmental Impact Assessment of Power Transmission Project Based on Fuzzy Theory

2011 ◽  
Vol 281 ◽  
pp. 195-200
Author(s):  
He Rui Cui ◽  
Da Fang Qiu ◽  
Lu Chen
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Evaluation Method ◽  
Power Transmission ◽  
Comprehensive Evaluation ◽  
Fuzzy Theory ◽  
Weighted Average ◽  
Fuzzy Comprehensive Evaluation ◽  
Environment Impact

As environment impact has become the important constraining factors to the power transmission project, so it is necessary to expand the scope of environmental impact assessment (EIA) to provide some information to relevant departments for decision-making. This paper selected fuzzy comprehensive evaluation method to assess the environmental impact, which is fit for the uncertainties of the EIA. The results show that the project's impact on the environment is satisfactory and it still exists insufficient in environment protection and the improvement is still potential. The innovation of this paper is to assign the comprehensive evaluation vector by considering the weighted average confidence degree of the comments set-valued, so it can calculate the assessment values more accurately.

Social context and the health consequences of disasters

2006 ◽  
Vol 1 (1) ◽  
pp. 37-47 ◽  
Author(s):  
Sandro Galea, MD, DrPH ◽  
Craig Hadley, PhD ◽  
Sasha Rudenstine, BA
Keyword(s):  
Population Health ◽  
Cultural Beliefs ◽  
Ecological Factors ◽  
Local Environment ◽  
Population Based ◽  
Health Consequences ◽  
Social Infrastructure ◽  
The Social ◽  
Contextual Determinants ◽  
Post Disaster

Disasters have been and will continue to be relatively common events in the human experience, and they make important contributions to variations in population health. There is a need, therefore, for conceptual models that identify the social and ecological factors influencing post-disaster consequences on population health. This article presents one such conceptual model which links the health consequences of natural, technological, and human-made disasters to a set of nested socioecological factors. Specifically, we attempt to link post-disaster consequences to aspects of the global and local environment and to highlight the roles played by social and ecological factors, including the social infrastructure, cultural beliefs, demography, and underlying historical and geographical circumstances. Examples from existing population-based health and disaster research are used to illustrate and amplify connections drawn from the model. From an applied standpoint, the model suggests that the role of multiple contextual determinants in shaping population health is likely to be complex. Practitioners interested in mitigating the consequences of disasters should pursue strategies that improve the underlying determinants of health, as well as practicable population- based interventions that could be implemented rapidly.

Research on the Fuzzy Comprehensive Evaluation for Social Insurance Fund Safety

2013 ◽  
Vol 281 ◽  
pp. 692-695
Author(s):  
Ying Guo ◽  
Li Quan Men
Keyword(s):  
Social Insurance ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Insurance Fund ◽  
Social Insurance Fund ◽  
The Social ◽  
The Government

Assessing social insurance fund safety objectively is useful to make effective risk management and control, so as to lower the economic loss. The fuzzy comprehensive evaluation method based analytical hierarchy process(AHP) is adopted to evaluate the social insurance fund safety. And social insurance fund safety evaluation index system is established according to the characteristics of the social insurance fund safety and the development tendency of social insurance .Then AHP method is applied to determine the more reasonable index weight and the fuzzy comprehensive evaluation model is used to evaluate social insurance fund safety of three cities.Finally, some improvement suggestions are proposed. The results show that the index is reasonable and quantitative and the method can help improve the safety of the social insurance fund as well as provide decision-making for the government.

The Comprehensive Evaluation Method Based on GIS of Oil well Casing Damage

2013 ◽  
Vol 807-809 ◽  
pp. 2595-2601
Author(s):  
Wei Bin Xu ◽  
Qing Jie Zhu ◽  
Hai Bo Jia
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Influence Factors ◽  
Weighted Average ◽  
Combination Method ◽  
Oil Well ◽  
Oil And Gas Development ◽  
Multi Criteria Evaluation ◽  
Casing Damage ◽  
Ordered Weighted Average

Oil well casing damage is one of the security problems in petroleum engineering, it should be paid more attention in oil and gas development. Influence factors of oil well casing damage are very complicated, and the evaluation criteria of each influence factors are different. Therefore, for the assessment of casing damage, should be based on a comprehensive engineering and petroleum geology of the argument, using multi-criteria evaluation method to implement from the safety point of view. The development of multi-criteria evaluation method based on GIS oil well casing damaged isnt only consider the relative importance of each influence factor, but also fully consider the various factors of space walks and order of importance. With the help of IDRISI software, Jinzhou oil production plant in the 25 block as an example, calculating order weights and criteria weights, the comprehensive evaluation of damage to the casing pipe of oil well is made. By comparison of weighted linear combination method and the ordered weighted average (OWA) method, analyzes the ordered weighted average method advantage.

scholarly journals Constructed Wetlands in South Korea: Current Status and Performance Assessment

2021 ◽  
Vol 13 (18) ◽  
pp. 10410
Author(s):  
Hyeseon Choi ◽  
Nash Jett DG. Reyes ◽  
Minsu Jeon ◽  
Lee-Hyung Kim
Keyword(s):  
South Korea ◽  
Constructed Wetlands ◽  
Performance Index ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Pollutant Removal ◽  
Current Status ◽  
Comprehensive Evaluation Method ◽  
And Performance ◽  
Constructed Treatment Wetlands

The efficiency of nature-based facilities is mostly evaluated in terms of their pollutant removal capabilities; however, apart from water purification functions, constructed wetlands also perform ecological, cultural, and environmental education functions. A multi-criteria performance index was developed in this study to evaluate the overall efficiency of constructed wetlands. A total of 54 constructed wetlands installed across South Korea were monitored to evaluate the pollutant removal performance of the facilities. A comparison between the conventional pollutant removal-based evaluation and the developed multi-criteria index was also performed to determine the key changes in the results of evaluation when different methods are employed. Among the different types of wetlands studied, hybrid systems were found to be the most effective in terms of pollutant removal due to their complex configurations and functions. Newly constructed treatment wetlands have unstable performance and thus, a stabilization period ranging from two to five years is required to assess the facility’s pollutant removal capabilities. As compared to the conventional pollutant removal-based efficiency evaluation, the comprehensive evaluation method provided a more strategic tool for identifying the facilities’ strengths and weaknesses. Generally, the multi-criteria performance index developed in this inquiry can be utilized as a general tool for evaluating the sustainability of similar nature-based facilities.

scholarly journals Analysis of Social and Environmental Impact of Earth-Rock Dam Breaks Based on a Fuzzy Comprehensive Evaluation Method

2020 ◽  
Vol 12 (15) ◽  
pp. 6239 ◽  
Author(s):  
Hao Gu ◽  
Xiao Fu ◽  
Yantao Zhu ◽  
Yijun Chen ◽  
Lixian Huang
Keyword(s):  
Environmental Impact ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Dam Break ◽  
Evaluation Index System ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method ◽  
Dam Breaks ◽  
The Social

A large proportion of the dams in China are earth-rock dams. Regarding the well-studied loss of life and economic consequences due to dam breaks, this paper introduces the causes and modes of earth-rock dam breaks and the corresponding dam-break losses in terms of the social and environmental aspects. This study formulates the evaluation index system and criteria of earth-rock dam breaks’ impact on society and the environment based on a fuzzy comprehensive evaluation method. The results show that the evaluation grade of the social and environmental impact of the dam break of the Liujiatai Reservoir was “serious”. Therefore, similar dams in China should take corresponding measures in advance to reduce the social and environmental impact of earth-rock dam breaks.

scholarly journals A New Uncertainty Evaluation Method and Its Application in Evaluating Software Quality

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Jiqiang Chen ◽  
Litao Ma ◽  
Chao Wang ◽  
Hong Zhang ◽  
Jie Wan
Keyword(s):  
Software Quality ◽  
Average Method ◽  
Evaluation System ◽  
Uncertainty Theory ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Weighted Average ◽  
Comprehensive Evaluation Method ◽  
Weighted Average Method ◽  
Uncertain Variables

Uncertainty theory is a branch of axiomatic mathematics dealing with experts’ belief degree. Considering the uncertainty with experts’ belief degree in the evaluation system and the different roles which different indices play in evaluating the overall goal with a hierarchical structure, a new comprehensive evaluation method is constructed based on uncertainty theory. First, index scores and weights of indices are described by uncertain variables and evaluation grades are described by uncertain sets. Second, weights of indices with respect to the overall goal are introduced. Third, a new uncertainty comprehensive evaluation method is constructed and proved to be a generalization of the weighted average method. Finally, an application is developed in evaluating software quality, which shows the effectiveness of the new method.

Assessments on Fire and Explosion of Petrochemical Wharf Storage Tank Area Using DOW Method and Fuzzy Comprehensive Evaluation Model

2014 ◽  
Vol 638-640 ◽  
pp. 1986-1992 ◽  
Author(s):  
Shi Tao Peng ◽  
Yi Sun ◽  
Ran Zhou ◽  
Xiao Li Wang ◽  
Wen Ling Guan
Keyword(s):  
Storage Tank ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Weighted Average ◽  
Fuzzy Comprehensive Evaluation ◽  
Weight Vector ◽  
Risk Level ◽  
Entropy Weight ◽  
Fire And Explosion

Based on the features of fire and explosion accidents in petrochemical wharf storage tank area, the DOW method and fuzzy comprehensive evaluation method were applied to evaluate risk of fire and explosion. First of all, DOW method was employed to evaluate the hazard of fire and explosion of petrochemical wharf storage tank area preliminarily and risk indexes of various tanks were obtained. Then, 5 first-level and 24 second-level indexes were identified by the fuzzy mathematics, in which the entropy weight method was introduced to determine weight vector of arrangement analysis, and applied to an actual risk evaluation for a petrochemical wharf storage tank area to determine fuzzy sets. On the basis of the weighted average method, the risk level is medium. Arranges the second-level indexes, and the main factors affecting the accident were concluded,including the violation rate of labor discipline, characteristics of hazardous materials, fire facilities, safety checks, operation of the security emergency response system and so on.

scholarly journals Transnational Accessibility between Residential Areas Based on Multimodal Transport System

2021 ◽  
Vol 10 (3) ◽  
pp. 136
Author(s):  
Nan Xia ◽  
Liang Cheng ◽  
Manchun Li
Keyword(s):  
Travel Time ◽  
Transport System ◽  
Process Analysis ◽  
Weighted Average ◽  
Residential Areas ◽  
Whole Process ◽  
Average Travel Time ◽  
Multimodal Transport ◽  
Transnational Activities ◽  
Basic Evaluation

Due to the development of globalization, transnational activities are more frequent and evaluations of current accessibility are the basis for accessibility improvements. Accessibility evaluation indices generally contain two parts: travel time and travel probability. However, complex transnational processes involve the multimodal transport system, including air and land transport networks, which makes the calculation of these indices more difficult because large quantities of fundamental data, in addition to suitable models, are needed. In this study, residential areas were set as the basic evaluation unit for fine-scale and whole-process analysis. Then, multiple web-sourced platforms were introduced to acquire the travel time between each pair of residential areas. The temporal-range radiation model was applied to calculate transnational travel probability by considering spatial interactions of populations. Finally, the weighted-average travel time to South Asia and Southeast Asia (SA&SEA) countries was generated to represent the overall accessibility for each populated area in China. The results showed that China had better accessibility to SEA than SA, and countries with high accessibility were Thailand, Singapore, and Malaysia. In China, southwest, south, and southeast regions showed larger accessibility to SA&SEA. Improvements of accessibility were also indicated by conjoint analysis of airport nodes. The proposed framework can help to delineate the spatial patterns of transnational accessibility and guide the enhancements of accessibility.

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