The Optimization of ACN-PCN Evaluation Method for Airport Pavement under Operation

2013 ◽  
Vol 857 ◽  
pp. 141-146
Author(s):  
Xian Zhi Shao ◽  
Yan Qing An ◽  
Xin Su ◽  
Jie Yuan
Keyword(s):  
Decision Making ◽  
Bearing Capacity ◽  
Evaluation Method ◽  
Technical Support ◽  
Improved Method ◽  
Main Approach ◽  
Airport Pavement ◽  
Pavement Structure

The Aircraft Classification Number-Pavement Classification Number method is the main approach for evaluating the structure of the airport pavement. However, the weakness of exiting methods lies in the difficulty of obtaining the exact PCN of the airport from the Airports Authority. This paper investigated the attenuation behaviors of the pavement structure under the envrionment of aircraft operation, and then the improved evaluation method for airport pavement was presented. The improved method could provide the technical support for accurately judging the bearing capacity of the exiting pavement structure and supply the decision-making reference to the Airports Authority.

Study of highway asphalt pavement recycling maintenance scheme decision system and decision method

2021 ◽  
pp. 1-10
Author(s):  
Hongjun Jing ◽  
Ping Yao ◽  
Lichen Song ◽  
Jiahao Zhang ◽  
Yanlong Zhao ◽  
...  
Keyword(s):  
Decision Making ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Asphalt Pavement ◽  
Economic Benefits ◽  
Highway Maintenance ◽  
Decision System ◽  
Recovery Index ◽  
Pavement Recycling

With modern economic and social development, the technical and economic requirements of highway maintenance and construction projects have become increasingly complicated. Meticulous and in-depth investigation and demonstration guided by scientific theories and methods are of considerable importance to highway maintenance scheme decision. As basis for the selection of highway asphalt pavement recycling maintenance scheme, the factors influencing the decision are analytically demonstrated and an evaluation system is proposed, including three major decision indexes: applicability of recycling mode, recycled pavement quality recovery index, and economic benefit. According to the principles of data statistics and analysis, this study proposes a calculation method for the recycled pavement quality recovery index, analyzes the economic benefits of decision schemes using economic models such as recycling ratio and cost, and puts forward an optimal evaluation method of engineering cost and its fuzzy score intervals. Index weights are calculated through the analytic hierarchy process, and the comprehensive decision evaluation system and comprehensive evaluation method are established. Subsequently, the decision-making method is analyzed on the basis of the decision system by combining the related data. Results show maximum weight of the pavement quality recovery index and minor differences among four recycling schemes in the quality recovery index and applicability. The decision-making results are simplified with clear hierarchical feature because of the fuzzy score intervals of each index. Findings can provide a reference for the asphalt pavement recycling scheme decision.

scholarly journals Decision-Making in the Transport Sector: A Sustainable Evaluation Method for Road Infrastructure

2020 ◽  
Vol 12 (3) ◽  
pp. 764 ◽  
Author(s):  
Ilaria Henke ◽  
Armando Cartenì ◽  
Clorinda Molitierno ◽  
Assunta Errico
Keyword(s):  
Decision Making ◽  
Environmental Sustainability ◽  
Evaluation Method ◽  
Social Economic ◽  
Cost Benefit Analysis ◽  
Point Of View ◽  
Transport Sector ◽  
National Guidelines ◽  
Road Infrastructure ◽  
Daily Movement

The transport sector is often the center of political and scientific debate on sustainability due to negative externalities produced by the daily movement of goods and people which impact both on the environment and on quality of life. Great interest has therefore focused on impact estimation of transport infrastructures/services with respect to social, economic, and environmental sustainability. Among the consolidated assessment methods, the cost–benefit analysis (CBA) is one of the quantitative tools representing the final stage (decision) in decision-making processes, which compares design alternatives and verifies the sustainability of a transport project. Recently the Italian Government proposed the national “Guidelines for Assessment of Investment Projects” based on CBA. The aim of this research is twofold: a) from a research point of view, to propose a sustainable evaluating method for impact assessment of the new transportation infrastructure aimed in performing both rational and shared decisions with the territories; b) for a practical point of view, to propose a first application of the CBA Italian guideline useful for the professional practice in the field of public investment evaluation. A quantitative impacts assessment of social, economic and environmental sustainability was performed for a revamping project of a new “greenway” in the south of Italy. Furthermore, also the social equity impacts produced by the new road infrastructure was also quantified, estimating the GINI indexes variation as a measure of effectiveness.

Application in Meta-Evaluation of Weapon Quality Based on Evidence Theory of Weight

2013 ◽  
Vol 313-314 ◽  
pp. 592-595
Author(s):  
Fei Cao ◽  
Fan Wu ◽  
Fang Lu
Keyword(s):  
Decision Making ◽  
Quality Evaluation ◽  
Evidence Theory ◽  
Technical Support ◽  
Validity And Reliability ◽  
Evaluation Result ◽  
Primary Evaluation ◽  
Reliability Measurement

A method based on the combination of experts’ assessments and D-S evidence theory of weight is proposed for reliability about result of quality evaluation. This method recurs to the idea of meta-evaluation, and actualizes the reliability measurement, then provides technical support for robust evaluation. Finally, we validate the method by using weapon primary evaluation result. It indicated that the method can measure the validity and reliability for primary evaluation result, and then improved commendably decision-making capability of weapon quality evaluation.

Application and comparative study of new optimization method for performance ranking of friction materials

2017 ◽  
Vol 232 (2) ◽  
pp. 143-154 ◽  
Author(s):  
Vishal Mahale ◽  
Jayashree Bijwe ◽  
Sujeet Sinha
Keyword(s):  
Decision Making ◽  
Comparative Study ◽  
Decision Model ◽  
Evaluation Method ◽  
Multiple Criteria Decision Making ◽  
Optimization Method ◽  
Friction Material ◽  
Multiple Criteria ◽  
Friction Materials ◽  
Performance Ranking

Good friction materials should satisfy diverse and contradictory performance requirements such as adequate friction ( µ ≈ 0.35–0.45), resistance to wear, fade, squeal, judder, etc. in consort with good recovery and less noise producing tendency. To achieve center point of all these conflicting criteria and selection of best overall performing friction material is multiple criteria decision making (MCDM) problem and very difficult task. Decision maker can easily make decision with single criteria without the help of any optimization tool by maximizing beneficial criteria and minimizing non-beneficial criteria. However, it is extremely challenging task if decision making involves several number of conflicting criteria. Few techniques are reported in the literature such as ‘multiple criteria decision model’, ‘Multi-attribute decision model’, ‘extension evaluation method’ (EEM), etc. for performance ranking of friction materials. However, the simplicity, reliability, applicability, time devoted for the analysis, etc. are always most important aspects of selecting a right tool for the analysis. In this paper application of a technique ‘multiple objective optimization on the basis of ratio analysis’ (MOORA) has been first time employed for performance ranking of friction materials. A comparative study of MOORA and currently used methods MCDM and EEM are also presented. MOORA proved to be the best tool based on the criteria such as simple to use, fast, flexible, and efficient one.

On Evaluation Method During Conceptual Design

2000 ◽  
Author(s):  
Yuan Mao Huang ◽  
Chung-Cheng Liao
Keyword(s):  
Decision Making ◽  
Conceptual Design ◽  
Evaluation Method ◽  
Pairwise Comparisons ◽  
Matrix Methods ◽  
Weighting Factors ◽  
Weighted Values

Abstract This study proposes an evaluation method that integrates the existing ordinal, cardinal and matrix methods for decision making. Normalized values are recommended for the pairwise comparisons of evaluation items to determine the weighting factors. These values also assist in determining the weighting eigenvectors for alternatives of the potential products. Web diagrams are generated for all alternatives and their areas are compared to identify the most preferred one. The proposed method can reduce drawbacks of the Pahl and Beitz method and the Saaty method when the two most preferred alternatives have the same summed weighted values in the Pahl and Beitz method or the same composite weighting factors in the Saaty method.

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