Railway location optimization selection of high-speed railway in windy areas based on comprehensive superiority degree
In response to the challenge of constructing high-speed railways in the high-wind environment that must be faced during the expansion of the western transportation network,it is essential to study the coupling relationship between railway location selection design and windy environments,and establish a scientific and reasonable decision-making model.It has become a key aspect of high-quality construction of high-speed railways.In this paper,by analyzing the main influencing factors and principles of high-speed railway location design in windy areas,a multi-level index system for railway location optimization and selection of high-speed railways in windy areas was established.The system includes 22 indicators selected from four aspects:engineering technology,ecological environment,wind protection engineering,and social benefits.After quantifying the qualitative indicators using triangular fuzzy numbers,the method of optimal defuzzification performance values was used to convert the fuzzy numbers into precise numbers.Then,the attribute reduction algorithm in rough set theory and the information entropy theory were combined to remove redundant or unimportant properties based on their importance,achieving the screening of the initial candidate indicators.In order to ensure that the results reflect both the decision-maker's subjective experience and the objective reality of the indicator data,while also taking into account the degree of variation and mutual influence of the data,the G2 method and the CRITIC method were respectively employed for subjective and objective weighting.The concept of optimal chi-square distance was introduced to calculate the final weight.Finally,considering both the distance similarity and geometric similarity dimensions,the target center distance was used to determine the distance superiority degree.The convergence degree of trend change of the ensemble curve was used to determine the geometric superiority degree.Based on the comprehensive superiority degree,a decision-making model for high-speed railway location schemes in high-wind areas was established.The model was validated by introducing an engineering case.The results show that the decision-making results of the high-speed railway scheme in high-wind areas based on this model are consistent with the actual engineering,verifying the reliability and applicability of the model.Therefore,it can provide certain theoretical support for the optimization and design of high-speed railway location schemes in high-wind areas.
万方数据
维普
