The Synthetical Evaluation of Tunnel Design Considering its Impact on Environment Based on Fuzzy Probability Method

2014 ◽  
Vol 501-504 ◽  
pp. 1727-1731
Author(s):  
Zong Yang Li ◽  
Yu Han Feng ◽  
Zong Liang Li
Keyword(s):  
Evaluation Process ◽  
Probability Method ◽  
Construction Process ◽  
Fuzzy Probability ◽  
Short Term ◽  
Analytic Hierarchy ◽  
Tunnel Design ◽  
Synthetical Evaluation ◽  
Four Levels ◽  
Hierarchy Process

Depended on the fact that so many plans for tunnel design laid much emphasis on its construction process and its short-term cost while ignored the increasing importance of environment now, this article puts forward a synthetical method contains analytic hierarchy process and fuzzy mathematics to evaluate plans for tunnel design with certain indexes including the volume of earth works, carbon emissions, energy consumption and consumption of materials, all of which were taken from the main procedures of the tunnel constrution. In the synthetical evaluation process, the performance on environment of a construction plan was graded into four levels, after the probabilities of four indexes may have on each level was obtained, often by investigation or experience, the final scores of the designs could be calculated with the fuzzy probability method. Further, the designs could be compared.

scholarly journals Reconfigurability Evaluation of Multifunctional Intelligent Boom Sprayer Based on Fuzzy Comprehensive Evaluation

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Luqiang Ma ◽  
Youlin Xu ◽  
Jiaqiang Zheng ◽  
Xiang Dai
Keyword(s):  
Analytic Hierarchy Process ◽  
Comprehensive Evaluation ◽  
Evaluation Process ◽  
Fuzzy Comprehensive Evaluation ◽  
Analytic Hierarchy ◽  
Evaluation Result ◽  
Validity Test ◽  
Good Evaluation ◽  
Product Function ◽  
Hierarchy Process

Multifunctional intelligent boom sprayer is a development direction of boom sprayers, and it could satisfy needs of precision and variable spraying and achieve aims of sustainable development of pesticide spraying, ecological protection, and efficient plant protection by reconfiguring its structures. Therefore, the evaluation of multifunctional intelligent boom sprayer reconfigurability has a role in improving product reconfigurability while reducing product function redundancy and production costs and reducing product function redundancy and production cost. In order to comprehensively evaluate the reconfigurability of a multifunctional intelligent boom sprayer, this paper established an evaluation index system and realized the evaluation process by using fuzzy comprehensive evaluation, analytic hierarchy process, and validity test. The evaluation result would avail to directly and effectively guide product optimization and upgrade process in accordance with quantitatively analyzed evaluation indexes of intelligent boom sprayer reconfigurability by using mathematical methods such as analytic hierarchy process and validity test in evaluation process. The index system was formed from six components, which were key design information, quality, cost, efficiency, intelligence, and operational capability. Index weights were calculated by the analytic hierarchy process. Finally, a multifunctional shiftable boom intelligent sprayer was evaluated for product reconfigurability improvements by using the evaluation method. Reconfigurability evaluation result of the multifunctional shiftable boom intelligent sprayer belonged to "good" evaluation interval by the calculation of formulas. There was further room to improve product reconfigurability, as the membership degree in the “good” evaluation interval was below 0.5. The study could provide a scientific basis for improving the reconfigurability, technical performance, and operation quality of products in intelligent boom sprayer design. In addition, it may be possible to decrease the arbitrary nature of subjective design factors and support economic and ecological goals when businesses upgrade products.

Stochastic KEMIRA-M Approach with Consistent Weightings

2019 ◽  
Vol 18 (03) ◽  
pp. 793-831 ◽  
Author(s):  
Pelin Toktaş ◽  
Gülin Feryal Can
Keyword(s):  
Stochastic Process ◽  
Universal Design ◽  
Evaluation Process ◽  
Decision Makers ◽  
Shopping Malls ◽  
Analytic Hierarchy ◽  
Discrete Uniform Distribution ◽  
Criteria Weights ◽  
Discrete Uniform ◽  
Hierarchy Process

This study proposes an advanced Modified KEmeny Median Indicator Rank Accordance (KEMIRA-M) approach based on stochastic evaluation process considering consistent weights to improve effective usage of KEMIRA-M. In the proposed approach, tasks related to the decision issue are performed by decision makers to ensure the understanding sufficiency of alternatives in terms of criteria more clearly. The weighting procedure of Analytic Hierarchy Process (AHP) is implemented in a stochastic manner benefited from discrete uniform distribution to provide obtaining consistent criteria weights considering median priority components. Therefore, different trials including different number of replications that shows the number of decision makers are performed and the most consistent weightings are determined for each trial in the stochastic process. In this way, the dependency to the limited numbers of decision makers and to determine criteria weights in a heuristic manner in KEMIRA-M is prevented. Additionally, the effect of the number of decision makers on criteria weightings and alternatives’ ranking process is shown. To obtain the most consistent weighting results, this stochastic process is utilized until acquiring approximate consistency ratios. The proposed stochastic KEMIRA-M approach is utilized to rank nine shopping malls (SMs) in Ankara in terms of technical criteria (TC) and universal design criteria (UDC). It was seen from the ranking results that the first SM (SM1) is the best one.

Evaluation Model to Exterior Wall Assemblies

2014 ◽  
Vol 1065-1069 ◽  
pp. 1626-1633
Author(s):  
Xiang Lei Hu ◽  
Sheng Cai Li ◽  
Hong Liang Yan ◽  
Gang Meng
Keyword(s):  
Evaluation Model ◽  
Evaluation Process ◽  
Value Engineering ◽  
Exterior Wall ◽  
Analytic Hierarchy ◽  
Qualitative And Quantitative ◽  
Quantitative Analyses ◽  
Code Changes ◽  
Wall Construction ◽  
Hierarchy Process

The Analytic Hierarchy Process (AHP) method presented in this paper is used to analyze three representative exterior wall assemblies from the perspective of manufacturers, designers, and consumers. Considering technical, economic, social, and environmental factors, a model and subsequent indicators were developed for qualitative and quantitative analyses. The approach discussed in this paper originated as a response to recent building code changes in China, and the need for value-engineers to better understand a set of newly developed wall construction assemblies in a way that minimizes subjective errors in the value-engineering evaluation process.

scholarly journals Multi Criteria Evaluation Framework for Prioritizing Indian Railway Stations Using Modified Rough AHP-Mabac Method

2018 ◽  
Vol 19 (2) ◽  
pp. 113-127 ◽  
Author(s):  
Haresh Kumar Sharma ◽  
Jagannath Roy ◽  
Samarjit Kar ◽  
Olegas Prentkovskis
Keyword(s):  
Multiple Criteria Decision Making ◽  
Evaluation Process ◽  
Evaluation Framework ◽  
Analytic Hierarchy ◽  
Railway Stations ◽  
Validity Testing ◽  
Multi Criteria Evaluation ◽  
Criteria Weights ◽  
Indian Railway ◽  
Hierarchy Process

Abstract This study proposes a hybrid multiple criteria decision making (MCDM) methodology for evaluating the performance of the Indian railway stations (IRS). Since the customers are heterogeneous and their requirements are often imprecise, the evaluation process is a critical step for prioritizing the IRS. To improve the existing approaches, an efficient evaluation technique has been proposed by integrating rough numbers, analytic hierarchy process (AHP) and multi-attribute border approximation area comparison (MABAC) methods in rough environment. The relative criteria weights based on their preferences given by experts is determined by rough AHP whereas evaluation of the alternatives based on these criteria are done by the modified rough MABAC method. A case study of prioritizing different railway stations in India is provided to demonstrate the efficiency and applicability of the proposed method. Among different criteria “proactively” is observed to be the most important criteria in our analysis, followed by ‘Railfanning’ and ‘DMO’ is found to be the best among the forty IRS in this study. Finally, a comparative analysis and validity testing of the proposed method are elaborated and the methodology provides a standard to select IRS on the basis of different criteria.

Application of the Improved Analytic Hierarchy Process in the Risk Management of Tunnel Construction

2014 ◽  
Vol 696 ◽  
pp. 295-300 ◽  
Author(s):  
Xue Xian Chen ◽  
Rong Huai Chen ◽  
Kui Lin ◽  
Ming Wei Zhang
Keyword(s):  
Risk Assessment ◽  
Analytic Hierarchy Process ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Tunnel Construction ◽  
Investment Risk ◽  
Construction Process ◽  
Analytic Hierarchy ◽  
Hierarchy Process ◽  
Improved Analytic Hierarchy Process

As the tunnel project has the characteristics of concealment, complexity, uncertainty and the larger investment risk, whose insidious danger is outstanding especially in the construction process. It is important for the safety of the construction process to determine the potential risk and minimize the risk using reasonable methods. Based on the experts investigation, 3-hierarchy and eighteen factors’ evaluation index system of risk assessment is established through the improved analytic hierarchy process. The results show that this method is reasonable and can greatly reduce graded difficulties.

scholarly journals PENERAPAN PARK AND RIDE DI STASIUN BEKASI

2015 ◽  
Vol 17 (3) ◽  
pp. 172
Author(s):  
Mega Suryandari ◽  
Achmad Wisakcono ◽  
Imma Widyawati Agustin
Keyword(s):  
Analytic Hierarchy Process ◽  
User Perception ◽  
Short Term ◽  
Kano Model ◽  
Analytic Hierarchy ◽  
Park And Ride ◽  
The Analytic Hierarchy Process ◽  
Improved Performance ◽  
Hierarchy Process

The purpose of this research is to know the implementation of park and ride at BekasiStation. The method of analysis in this research is the assessment of parking performance based onstandards and parking user perception with Kano-model, and the Analytic-Hierarchy-Process(AHP) to analyze the implementation of park and ride at Bekasi Station. The results show thatparking performance doesn’t meet the standard. The problem of parking performance at BekasiStation are view from two perspectives, namely: the peak accumulation which is more than itscapacity and parking index which is more than 1 (one). Improved performance based on userperception parking with Kano Model, the main priority is obvious parking lines and the parkingstandard. The priority of implemention of park and ride at Bekasi Station is provideparking28.48%. From the results of this research, the writter recommends to build a parking in conformitywith the parking user’s perception for short term solution and the implementation of park and ridefor the long term solution.

scholarly journals Screening Quality Evaluation Factors of Freeze-Dried Peach (Prunus PersicaL. Batsch) Powders from Different Ripening Time Cultivars

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Chun-ju Liu ◽  
Hai-ou Wang ◽  
You-lin Xue ◽  
Zhong-yuan Zhang ◽  
Li-ying Niu ◽  
...  
Keyword(s):  
Quality Evaluation ◽  
Principal Component ◽  
Evaluation Process ◽  
Analytic Hierarchy ◽  
Ripening Time ◽  
Titratable Acid ◽  
Freeze Dried ◽  
Clear Differentiation ◽  
Processed Products ◽  
Hierarchy Process

The quality evaluation of processed products is complex. To simplify the quality evaluation process and improve the efficiency, fourteen evaluation factors of freeze-dried powders of seventeen cultivars of peach at different ripening times were analyzed. The most important evaluation indicators and criteria were obtained by analysis of variance (ANOVA), correlation analysis (CA), principal component analysis (PCA), system cluster analysis (SCA), and analytic hierarchy process (AHP). Results showed that the peach powders had the significant differences in quality (P<0.05), and some processing factors were related with some physicochemical and nutritional factors. Five principle components were extracted by PCA and the cumulative contribution achieved was 84.46%. Through the score plot of the first two principal components, a clear differentiation among ripening times was found and three distinct groups were separated according to ripening time. Five characteristic factors were obtained as titratable acid, browning index, hemicellulose, hygroscopicity, and vitamin C by SCA. Their weights of 0.1249, 0.3007, 0.0514, 0.4916, and 0.0315 were obtained by AHP, respectively. The peach cultivars were divided into four evaluation grades by the comprehensive quality score.

scholarly journals SENSIBILIDADE DO MODELO DE FRAGILIDADES AMBIENTAIS À PONDERAÇÃO MULTICRITERIAL: ASPECTOS FÍSICOS DA BACIA HIDROGRÁFICA DO ALTO URUGUAI

FLORESTA ◽  
2014 ◽  
Vol 44 (3) ◽  
pp. 535
Author(s):  
Damáris Gonçalves Padilha ◽  
Mario Luiz Trevisan ◽  
Jussara Cabral Cruz
Keyword(s):  
Analytic Hierarchy Process ◽  
Environmental Assessment ◽  
Multidisciplinary Team ◽  
Evaluation Model ◽  
Evaluation Process ◽  
Analytic Hierarchy ◽  
Local Characteristics ◽  
Definition Of ◽  
Hierarchy Process

Modelos de fragilidades ambientais compreendem, de maneira geral, a avaliação de n aspectos (ou fatores) relativos às características locais, usualmente tratadas por técnicos de diferentes áreas constituintes de uma equipe multidisciplinar. Porém a definição dos n aspectos por parte da equipe nem sempre acontece de forma unânime, não raro ocorrendo, no início do processo de avaliação, dúvidas sobre o quanto realmente cada aspecto ou fator (indicador) apresenta-se significativo dentro do modelo de avaliação. Como estudo de caso, foi realizada a sensibilidade das ponderações dos fatores que compõem o método multicriterial AHP (Analytic Hierarchy Process), aplicado na região da bacia hidrográfica do Alto Uruguai. A metodologia consistiu na ponderação sistemática de cada fator constituinte do modelo para posterior consideração quanto a sua influência em relação ao conjunto dos fatores, proporcionando uma avaliação quanto a sua eficácia na identificação de pesos dos fatores em cenários que mostram maior discriminância no conjunto, além de apresentar alternativas na composição dos pesos. Assim, a partir dos resultados da análise, configura-se a importância da realização do estudo da sensibilidade em modelos de fragilidade ambiental aplicados à bacia hidrográfica.Palavras-chave: Análise de sensibilidade; avaliação ambiental; multicritério. AbstractSensitiveness of model to environmental fragilities to multicriterial weighting: physical aspects of watershed of the Alto Uruguay. Environmental fragilities models comprise, generally, the evaluation of n criteria (or factors) on local characteristics, usually handled by technicians from different areas in a multidisciplinary team. However, definition of n aspects by team does not always happen unanimously, often occurring early in the evaluation process doubts whether every aspect or indicator is in fact significant within the evaluation model. As a case study, it was performed the sensitivity of weighting factors that comprising the multicriterial method AHP (Analytic Hierarchy Process) applied to the basin of the Alto Uruguay region. After evaluating the multicriterial method, we applied the sensitiveness analysis to improve the weighting process. Therefore, from the results of this analysis, it sets up the importance of the study of sensitiveness of environmental fragility models for the watershed better understanding.Keywords: Sensitiveness analysis; environmental assessment; multicriterial weighting.

Fuzzy Probability Method-Based Risk Assessment of International Engineering Project

2011 ◽  
Vol 368-373 ◽  
pp. 3180-3183
Author(s):  
Zhang Jun Liu ◽  
Ya Kong
Keyword(s):  
Risk Assessment ◽  
Risk Evaluation ◽  
Influential Factors ◽  
Probability Method ◽  
Fuzzy Probability ◽  
Engineering Project ◽  
Assessment Index ◽  
Assessment Index System ◽  
Weighted Values ◽  
Hierarchy Process

In the present paper, the fuzzy probability method is applied to assess the risk of international engineering project. Firstly, According to the risk from the whole cycle of international engineering project, The influential factors of the project bidding risk assessment are analyzed. The risk of international engineering project is divided into four parts, such as national risk, industrial risk, involved parties risk and project’s risk, and an assessment index system of international project risk is constructed. Secondly, based on the fuzzy probability method, a new model of the risk assessment for international engineering project is developed. In order to assess index weighted value scientifically, the analytical hierarchy process (AHP) is introduced into the fuzzy weighted values. Finally, the validity and rationality of the risk evaluation for international engineering project is verified through the risk instance of a project.

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