Evaluation Method for Sustainability of Linear Infrastructure Projects in Complex Environment Based on Pythagoras Fuzzy AHP

2021 ◽  
Author(s):  
Chengbo Ni ◽  
Yulong Li ◽  
Han Su ◽  
Saixing Zeng
2012 ◽  
Vol 8 (1) ◽  
pp. 34-48 ◽  
Author(s):  
Jie Li ◽  
Patrick Zou

To fulfil the increasing demands of the public,Public Private Partnership (PPP) has beenincreasingly used to procure infrastructureprojects, such as motor ways, bridges, tunnelsand railways. However, the risks involved inPPP projects are unique and dynamic due tolarge amount of investment and longconcession period. This paper aims to developa risk identification framework from theperspectives of project life cycle, and anassessment framework for risks associatedwith PPP project using fuzzy analyticalhierarchy process (AHP). First the paperreviews the current literature to identifycommon risks in PPP infrastructure projectsand classification methods used. The risksidentified from the literature were classifiedusing project life cycle perspectives. Followingthat, the paper presents the advantages offuzzy AHP. Furthermore, the paper provides aframework for assessment of risks in PPPprojects followed by an illustrative examplewhere the data was obtained from surveyquestionnaires. The paper concludes that risksassociated in PPP infrastructure projects areunique and therefore it is beneficial to classifythem from project life cycle perspectives, andthe proposed fuzzy AHP method is suitable forthe assessment of these risks.


2016 ◽  
Vol 68 ◽  
pp. 114-127 ◽  
Author(s):  
Ali Behnam ◽  
Darshana Charitha Wickramasinghe ◽  
Moataz Ahmed Abdel Ghaffar ◽  
Tuong Thuy Vu ◽  
Yu Hoe Tang ◽  
...  

2014 ◽  
Vol 1044-1045 ◽  
pp. 1855-1858
Author(s):  
Wan Yu Zhang ◽  
Sui Huai Yu ◽  
Wei Ping He ◽  
Xin Liu ◽  
Ming Lei Zhao

For a more scientifically evaluate of home appliance product design, on basis of determining the evaluation index, Fuzzy AHP (Fuzzy-Analytic Hierarchy Process) comprehensive evaluation method is used to converse qualitative index to quantitative index, establish a home appliance product design evaluation model, overcome subjectivity and arbitrariness of evaluation, and scientifically realize the evaluation of home appliance product design. Research shows that the evaluation system can easily actualize the evaluation of home appliance product design conveniently and effectively.


2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Ramin Zare ◽  
Jafar Nouri ◽  
Mohammad Ali Abdoli ◽  
Farideh Atabi ◽  
Majid Alavi

The worldwide recycled aluminum generation is increasing quickly thanks to the environmental considerations and continuous growing of use demands. Aluminum dross recycling, as the secondary aluminum process, has been always considered as a problematic issue in the world. The aim of this work is to propose a methodical and easy procedure for the proposed system selection as the MCDM problem. Here, an evaluation method, integrated FAHP, is presented to evaluate aluminum waste management systems. Therefore, we drive weights of each pair comparison matrix by the use of the goal programming (GP) model. The functional unit includes aluminum dross and aluminum scrap, which is defined as 1000 kilograms. The model is confirmed in the case of aluminum waste management in Arak. For the proposed integrated fuzzy AHP model, five alternatives are investigated. The results showed that, according to the selected attributes, the best waste management alternative is the one involving the primary aluminum ingot 99.5% including 200 kg and the secondary aluminum 98% (scrap) including 800 kg, and beneficiation activities are implemented, duplicate aluminum dross is recycled in the plant, and finally it is landfilled.


2014 ◽  
Vol 496-500 ◽  
pp. 2788-2794 ◽  
Author(s):  
Gang Shen ◽  
Dong Xiang ◽  
Nan Liu ◽  
Peng Mou ◽  
Yong Yang

Hoisting machinery belongs to special machinery equipment and is gradually developing towards advanced technologies such as lightweight, energy conservation and safety reliability. Therefore objective evaluation for safety circumstances of bridge crane has major engineering significance. The fuzzy-AHP comprehensive evaluation model has been established by fuzzy evaluation method and analytic hierarchy process (AHP) method. In addition, application of the fuzzy-AHP method in bridge crane safety evaluation has been discussed. Firstly, the safety evaluation index system is established according to working environment, manufacturing technology and service condition of bridge crane. Secondly, weight coefficient is determined by AHP method and single stage fuzzy evaluation is processed. Based on this result, multi stage fuzzy comprehensive evaluation is conducted. Finally, the safety grade of bridge crane is obtained. Besides, fatigue test of relevant main girder model is conducted and the accuracy of safety evaluation based on the fuzzy-AHP method is verified through test results.


Mathematics ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 409
Author(s):  
Svajone Bekesiene ◽  
Aidas Vasilis Vasiliauskas ◽  
Šárka Hošková-Mayerová ◽  
Virgilija Vasilienė-Vasiliauskienė

This survey is focussed on distance learning studies, where there can be met a lot of technical obstacles, which creates complications in decision making. To get an ideal solution for these kinds of problems, the Fuzzy TOPSIS (Technique for Order Preference by Similarities to Ideal Solution) is one of the best solutions. Therefore, this paper presents the distance learning quality assessment surveys when the Fuzzy AHP (Analytic Hierarchy Process) and TOPSIS methods are used. Research results describe the application of the Fuzzy AHP—TOPSIS hybrid method. MCDM (Multi-Criteria Decision Making) programs with MATLAB (R2020b) mathematical package were written to calculate the evaluation results for three distance learning courses. In the practical implementation of the proposed distance learning module evaluation methodology, the experts’ evaluation method was applied. Thirty-four judges were chosen with specific knowledge and skills and with very different competencies to assess three alternatives by fourteen criteria. Following the experts’ evaluation, a statistical analysis method was used to process the data. After applying the complex evaluation, the comparative analysis method was used to summarize the obtained results. This work further provides useful guidelines for the development of an easily understandable hierarchy of criteria model that reflects the main goal of study quality assessment.


2014 ◽  
Vol 8 (1) ◽  
pp. 446-450
Author(s):  
Xiao Wei

To explore the method of creating a theoretical model of urban low-carbon economy evaluation, and analyze the development status and level of low carbon economy in cities in the middle and lower reaches of Yangtze River; Method To introduce the basic theory of low-carbon economy, the principle and the technical route for creating the evaluation system of urban low-carbon economy, develop 3 layers of 5 categories of 18 evaluation indicators, conduct weighted calculation using Delphi method, analytic hierarchy process(AHP) , fuzzy evaluation method and fuzzy AHP method, investigate into 7 cities, such as Shanghai, Nanjing in the middle and lower reaches of Yangtze River, and evaluate the urban low-carbon economic status using the created models; Results The evaluation result shows that at present China has many cities at “medium to high carbon economy” or “high carbon economy” types. The development level of low-carbon economy lagged behind many western countries; Conclusion It is a most efficient pathway to improve the present low-carbon economic level by vigorously developing the low-carbon technology, developing the low-carbon environmental education and promoting the low-carbon concept.


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