基于层次分析法的南亚某环线铁路选线设计

Alignment Design of a South Asian Circular Railway Based on Analytic Hierarchy Process

研究目的:为客观合理地做好南亚某国家环线铁路的选线设计,为业主决策提供科学的依据,采用层次分析法,结合项目现场实际情况,从工程、运营、社会影响、环境影响4个方面,分析识别主要工程费用、土地征用等16项评价指标,建立起适用于南亚某国的铁路选线层次结构模型.研究结论:(1)利用层次结构模型,对环线铁路线路方案进行评价,通过打分评价,从而选出最优方案;(2)在环线铁路项目的线路方案比较中,层次分析法的论证结果与业主最终采用的方案保持一致,证明了决策的有效性;(3)运用层次分析法开展铁路选线,按照分解、比较判断、综合的思维方式进行决策,是解决这一多目标决策问题的有效方法;(4)本文研究可为南亚地区类似铁路项目选线提供一定的参考和借鉴.

Research purposes:In order to do an objective and reasonable design of the alignment selection of a circular railway in a country in South Asia,and provide a scientific basis for the owner's decision-making,the analytic hierarchy process was adopted,combined with the actual situation of the project site,from the four aspects of engineering,operation,social impact,and environment impact,16 evaluation indicators such as main project cost and land acquisition were analyzed and identified,and a hierarchical structure model of railway alignment selection suitable for this country was established.Research conclusions:(1)The hierarchical structure model is used to evaluate the various options of the circular railway,and the optimal scheme is selected by scoring and evaluating.(2)In the comparison of the alignment options,the demonstration result of the AHP is consistent with the plan finally adopted by the owner,which proves the effectiveness of the decision-making.(3)Using AHP to carry out railway alignment selection,according to the decomposition,comparative judgment,comprehensive way of thinking for decision-making,is an effective method to solve the multi-objective decision-making problem.(4)This paper can provide reference for the route selection of similar railway projects in South Asia.