The Application of Gray Relational Analysis Based on the OWA Operator in the Road Network Evaluation of Development Zone

2013 ◽  
Vol 409-410 ◽  
pp. 1287-1291
Author(s):  
De Hua Lin ◽  
Zhen Zhou Yuan
Keyword(s):  
Road Network ◽  
Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Gray Relational Analysis ◽  
Owa Operator ◽  
Development Zone ◽  
Evaluation Indexes ◽  
The Road ◽  
Relational Analysis ◽  
Network Evaluation

The development zone, which consists of freight traffic mostly and a few part of passenger traffic, and which forms of area traffic flow in the internal zone, and which has the significant characteristic of external transport playing an important role, has the different road network evaluation with other general cities. This paper, connecting with the traffic planning characteristics, constructs highway network evaluation indexes of development zone both at the structural performance and the running quality of road network. Moreover, this article, on the basis of the analyses of the comprehensive evaluation methods and the characteristics of evaluation index system, creates the road network evaluation model of development zone that is the gray relational analysis based on the OWA operator to determine the combination weight using the AHP and Entropy as the basis methods. Finally, by the empirical research, it verifies the feasibility and scientific of the evaluation indexes and method.

scholarly journals The Study of How Open Community Based on Combination Weighting Method Influence on Road Capacity

2017 ◽  
Vol 11 (6) ◽  
pp. 15 ◽  
Author(s):  
Zhuhui He ◽  
Rui Liao ◽  
Longlong Wang
Keyword(s):  
Road Network ◽  
Comprehensive Evaluation ◽  
Positive Impact ◽  
Evaluation Model ◽  
Network Connectivity ◽  
Entropy Weight ◽  
Weighting Method ◽  
Linear Coefficient ◽  
The Road ◽  
Road Capacity

The paper studies whether the opening of community can improve the road capacity. First of all, based on the consideration of road space and traffic quality, the evaluation indexes are: road network density, road network connectivity, non-linear coefficient, traffic volume of main road beside community, delay time of intersection, travel time consumption and vehicle accessibility. Secondly, the weight of the index is calculated by the method of relative comparison, the variation coefficient method and the entropy weight method. Then, we sort the three weights, using the correlated coefficient and degree of spearman rank to combine the three weights, so as to get combined weights of various index and achieve the effect which makes good use of the method. Finally, we combine indicators and weights, establish a comprehensive evaluation model, and assess the road capacity before and after the opening of the road. Through the calculation, it is found that the comprehensive evaluation index after the opening of the community is higher than that before the opening, that is, the positive impact on the surrounding roads.

AHP to Appraise the Traffic Safety of the Express Way

2011 ◽  
Vol 48-49 ◽  
pp. 157-163
Author(s):  
Dan Yu ◽  
Yi Hu Wu ◽  
Zhi Xiang Hou ◽  
Wen Jun Liu ◽  
Ji Guang Zhang
Keyword(s):  
Traffic Safety ◽  
Road Safety ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Safety Evaluation ◽  
Evaluation Index System ◽  
The Road ◽  
Comprehensive Evaluation Model ◽  
The Impact ◽  
Fuzzy Interval

The internal structure of the road safety system is extremely complex and it is affected by a lot of factors, each factor weights can not be fully established. In this article, we expressed the attribute value with a fuzzy interval number, the comprehensive appraise to the impact of traffic safety with emphasis on "people", "car" "road" in the "road". First of all, establishing evaluation index system, and form the judging matrix by AHP; then, it can be acquired a method of traffic safety evaluation by using the comprehensive evaluation model of the fuzzy interval.

Comprehensive Evaluation of Advanced Public Transportation System Based on the Matter Element and Combination Weight

2014 ◽  
Vol 694 ◽  
pp. 26-29 ◽  
Author(s):  
Jie Ni ◽  
Zhi Qiang Liu ◽  
Peng Wang
Keyword(s):  
Public Transportation ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Social Benefit ◽  
Transportation System ◽  
Entropy Method ◽  
Evaluation Index System ◽  
Element Analysis ◽  
Evaluation Indexes ◽  
Public Transportation System

The basic principle of matter element analysis theory was applied to establish the multi-level extensible evaluation model of advanced public transportation system. First, evaluation index system was established from three aspects, the transit technology level, economic benefit, social benefit and environmental impact. Then, according to the characteristics of evaluation indexes on different levels, entropy method and AHP was respectively used to determine the index weight value. Grade of evaluation was given by calculating relational degrees by layers. Finally, APTS in a city was studied as an example, and improvement measures were put forward. The method is proved to be reasonable and valid.

Research and Application of Comprehensive Evaluation Index System in Micro-Grid’s Construction and Operation

2014 ◽  
Vol 672-674 ◽  
pp. 1301-1306
Author(s):  
Shan Shan Wu ◽  
Peng Wang ◽  
Yang Li ◽  
Yu Hui
Keyword(s):  
Index System ◽  
Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Technical Standards ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Advantages And Disadvantages ◽  
The Index System ◽  
Micro Grid ◽  
Grid Operation

In order to evaluation the operation of micro-grid comprehensively, this paper builds an index system based on our current definitions and technical characteristics of the micro-grid. There are 20 base evaluation indexes and uses analytic hierarchy process (AHP) to explain the index system from both technical and economic aspects. Through using the index system to some real region, it has been proved reliably that the index system could reflect the advantages and disadvantages of micro-grid operation intuitively. The proposed indexes have been included State Grid Company of micro-grid technical standards.

Optimize Oil Field Simulation Measures through Multi-Factor Comprehensive Evaluation Method Based on Fuzzy Mathematics and Grey Correlation

2012 ◽  
Vol 524-527 ◽  
pp. 1503-1506
Author(s):  
Zhi Kun Liu ◽  
Qi Li ◽  
Shao Xiang Zhang
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Oil Field ◽  
Gray Relational Analysis ◽  
Fuzzy Mathematics ◽  
Field Stimulation ◽  
Comprehensive Evaluation Method ◽  
Relational Analysis ◽  
The One

This paper adopts the multi-factor comprehensive evaluation method combining fuzzy mathematics and gray relational analysis to conduct oil field stimulation measures optimization. It overcomes the one-sidedness of the man-made assignment through the replacing correlation of ray correlation analysis with weight set of fuzzy comprehensive evaluation. The paper first analyzed the factors that affect the oil field stimulation measures, and then created a multi-factor comprehensive evaluation theoretical model, finally based on the instance to evaluate the model. The results show that the method is feasible and has high application value.

scholarly journals Comprehensive evaluation model of wind power accommodation ability based on macroscopic and microscopic indicators

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Gengyin Li ◽  
Guodong Li ◽  
Ming Zhou
Keyword(s):  
Wind Power ◽  
Index System ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Evaluation Index System ◽  
Angle Bisector ◽  
Evaluation Indexes ◽  
Study Results ◽  
Comprehensive Evaluation Model ◽  
Radar Chart

Abstract This article explores and establishes comprehensive evaluation index system of wind power accommodation ability considering microscopic index and macroscopic index, and the index system includes conventional evaluation indexes such as forecast deviation, simultaneity factor and anti-peak rate, also newly introduced evaluation indexes such as installed capacity, power adequacy and accommodation space. Bayesian weight modified method is used for solving index weights of 8 wind power accommodation indexes. The paper puts forward a comprehensive evaluation model of wind power accommodation ability based on improved radar chart method, and this model changes traditional radar chart fan-shaped sector to quadrilateral evaluation region, and increasing angle bisector can solve the problem that evaluation results are not unique. It constructs new area and perimeter vectors of radar chart, which make the evaluation results give consideration to level of aggregation and balance degree of evaluation objectives, and case study results show that this model has a certain practical value.

scholarly journals Evaluation of the Adaptability of an EPB TBM to Tunnelling through Highly Variable Composite Strata

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Tao Li ◽  
Jinwu Zhan ◽  
Chao Li ◽  
Zhongsheng Tan
Keyword(s):  
Comprehensive Evaluation ◽  
Earth Pressure ◽  
Tunnel Boring Machine ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Pressure Balance ◽  
Technical Parameters ◽  
Evaluation Indexes ◽  
Epb Tbm

The adaptability of an earth pressure balance (EPB) tunnel boring machine (TBM) to complex geological strata needs to be evaluated when a tunnel project is set up. It is helpful for better design and more suitable technical parameters of the machine. Because the factors that influence adaptability are numerous and interrelated, their effects also differ; hence, a quantitative assessment of adaptability is generally difficult. In the present study, a method for quantitatively evaluating the excavation adaptability of an EPB TBM was developed using an analytic hierarchy process (AHP) and fuzzy comprehensive evaluation. The method first involves an initial selection of factors that may influence tunnelling. Based on the expert questionnaire and their influence weights determined by AHP, the 10 evaluation indexes from 25 primary indexes were selected to establish the evaluation index system (EIS) including a target, criteria, and index level. Fuzzy membership functions are then derived one after another based on the effect of each evaluation index on the EBP TBM tunnelling process. A fuzzy mathematical method was finally presented to determine the adaptability of an EPB TBM excavation performance. The proposed method was applied to two special sections of diameter 6.98 m excavated by two EPB TBMs in the Shenzhen Metro Line 11 project. The geological exploration shows that these two tunnel sections pass through typical composite strata in Shenzhen. The determined adaptability grades of the EPB TBMs used for composite strata were confirmed by the actual tunnel excavation. It indicates that the developed method is reasonable and useful to evaluate tunnelling adaptability of EPB TBM.

Study on Evaluation Methods of Disciplines in Universities

2013 ◽  
Vol 423-426 ◽  
pp. 2930-2933
Author(s):  
Cong Jun Rao
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Scientific Research ◽  
Fuzzy Comprehensive Evaluation ◽  
First Grade ◽  
Evaluation Index System ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Research Achievement

The level and status of disciplines are the important indexes in universities. The evaluation of multiple disciplines plays an important role in the disciplines development. This paper mainly studied the problem of disciplines evaluation in higher education. Firstly, it established the evaluation index system with eight first-grade evaluation indexes, i.e., discipline construction, teaching award, research funding, the scientific research achievement award, team construction, scientific research, talent training, and initial investment, and then used the method of Analytic Hierarchy Process (AHP) to solve the weight of each index. Thirdly, it established a disciplinary evaluation model based on fuzzy comprehensive evaluation method, and analyzed the rationality of the model. The study in this paper provides a new way for the evaluation of university disciplines.

A Multi-Objective Model for Evaluation of Road-Region Ecosystem Stability

2011 ◽  
Vol 48-49 ◽  
pp. 60-63
Author(s):  
Zhi Bin Qin ◽  
Zhao Hui Liu ◽  
Yu Zhi Li
Keyword(s):  
Index System ◽  
Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Multidimensional Space ◽  
Ecosystem Stability ◽  
Multi Objective ◽  
The Road ◽  
Objective Model ◽  
The Stability ◽  
The Relationship

The concept of the road-region ecosystem is described and its environmental features analyzed. In addition, the stability of the road-region ecosystem is summarized. A scientific and rational evaluation of road-region ecosystem stability is proposed to properly investigate the relationship between highway construction and protection of the ecological environment. This paper investigated a method for determining an index system to be used to evaluate road-region ecosystem stability. It put forward an index system for assessing road-region ecosystem stability as a reference. On the basis of detailed analysis of the multidimensional space of the road-region ecosystem, a new method and calculation formula for multi-objective comprehensive evaluation of road-region ecosystem stability are presented. Computation result is fit with the actual situation. The result indicates that the evaluation index system and the method are feasible.

Assessment on the Possibility of Low-Carbon Economic Development - Taking Zhejiang, China as a Case Study

2013 ◽  
Vol 291-294 ◽  
pp. 1402-1406
Author(s):  
Bin Zhou ◽  
Lu Jin ◽  
He Zhang ◽  
Qun Deng ◽  
Jing Xu ◽  
...  
Keyword(s):  
Economic Development ◽  
Index System ◽  
Comprehensive Evaluation ◽  
Zhejiang Province ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Low Carbon ◽  
Low Carbon Economy ◽  
Evaluation Indexes ◽  
Carbon Economy

Based on the principles of scientific, systematic, practicality, hierarchy, the paper constructs the evaluation index system of the Possibility of Low-carbon Economic Development, and determines the assessment of evaluation indexes applying the analytic hierarchy process (AHP), and builds the multi-objective linear weighted evaluation function model. Taking the Province of Zhejiang for example, the Possibility of Low-carbon Economic Development was evaluated. The results can be summarized as follows: The construction the evaluation index system of the Possibility of Low-carbon Economic Development is scientific and has a certain operability; The development of low-carbon economy in Zhejiang Province is potential, and the comprehensive evaluation has 4 levels; From certain aspects，such as the establishment and improvement of the low-carbon economy policy system，management system for carbon emissions and carbon exchanges，the introduction of foreign advanced low-carbon technologies，the promotion of low-carbon consumption and low-carbon lifestyle, measures can be taken to promote the development of a low- carbon economy in Zhejiang Province.

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