Abstract：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.
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WANG Dengpan, HUANG Boqing. Alignment Design of a South Asian Circular Railway Based on Analytic Hierarchy Process. Journal of Railway Engineering Society, 2022, 39(12): 35-40.
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2022, Vol. 39 
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