Railway construction scheme evaluation method based on a hybrid multi-attribute decision

Abstract

The invention discloses a railway construction scheme evaluation method based on a hybrid multi-attribute decision, and the method comprises the following steps: S1, carrying out the standardization processing of the values of a qualitative index and a quantitative index in a plurality of alternative schemes, and obtaining a standardized evaluation matrix; S2, calculating the weight of each indexby adopting a combination weighting method; S3, weighting the standardized evaluation matrix by using the weight obtained in the step S2 to obtain a weighting matrix; S4, determining a positive idealscheme and a negative ideal scheme; S5, calculating the distance between each alternative scheme and the positive ideal scheme and the negative ideal scheme; And S6, calculating the comprehensive relative closeness of each alternative scheme, and determining the optimal scheme in each alternative scheme according to the comprehensive relative closeness. The evaluation method overcomes the defectsof a traditional scheme evaluation method such as an analytic hierarchy process and a fuzzy comprehensive evaluation method, achieves comprehensive evaluation and comparison of quantitative indexes and qualitative indexes, enables the evaluation result to be more scientific and reasonable, and has a higher reference value.

Description

technical field [0001] The invention relates to the technical field of railway engineering construction, in particular to an evaluation method of a railway construction scheme based on mixed multi-attribute decision-making. Background technique [0002] The comprehensive evaluation and comparison of railway construction schemes play a pivotal role in the design and preliminary work of railway line selection. It determines the size of the project cost and the quality of operating conditions, and provides a powerful basis for the economic benefits of the line after it is completed. guarantee, and will have a direct impact on the ecological environment and social benefits along the surrounding area. [0003] The current comprehensive evaluation and comparison methods of railway schemes are mostly limited to Analytic Hierarchy Process (AHP) or fuzzy comprehensive evaluation methods. However, the AHP needs to use expert knowledge and experience to compare the importance of indic...

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Problems solved by technology

However, the AHP needs to use expert knowledge and experience to compare the importance of indicators when calculating the weight of indicators. Therefore, the value assigned is often affected by the intention and preference of decision makers, which may easily cause the results of program evaluation to be subjective. In addition, its calculation The process is complicated, which adds a lot of extra work to the experts; when the fuzzy comprehensive evaluation method performs comprehensive evaluation of quantitative and qualitative indicators, it needs to give the evaluation level or fuzzy evaluation value for the quantitative indicators, which is difficult to achieve in many cases because It is a very difficult task to determine the level critical value of some quantitative indicators, which brings unnecessary trouble to the calculation of the evaluation value of quantitative indicators, making it difficult for the final decision-making results to achieve a comprehensive quantitative and qualitative evaluation in the true sense.

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