Research On Decision-Making Method Of Urban Rail Transit Station Distribution

The distribution of urban rail transit stations affects the technical rationality of engineering,the economic rationality of construction and operation,the convenience of public transportation,the service efficiency of comprehensive transportation network,urban development layout,safety of everyone and integrity of ecological resources.The research on decision-making method can help transport construction planners on obtaining high-quality distributions of urban rail transit stations,improve the happiness of citizens,lead to cities and transportation networks with orderly development.The research contents and conclusions of this article mainly lie in following aspects.(1)The main influencing factors of urban rail transit station distribution are listed.A multi object decision making method is picked among frequently-used ones.Available engineering information,relevant norms and standards,latest research results and national development requirements are collected.The following results are obtained.The spirits including systematic development,serving the people,enviroment protection,and safety are brought into the decision-making standards.The decision-making index system and decision-making analytic hierarchy process model are established.The calculation method of each index is created.A weighting method is created by simplifying the analytic hierarchy process.(2)The process of station distribution in design institute is investigated,and the procedure of decision-making is sorted out.The following results are obtained.For some factors has been determined,the distribution decision of urban rail transit stations mainly focuses on intermediate stations and turn back stations.The prediction of station classification needs to be proved according to the scheme.The decision-making work is divided into four parts,in which the information collection and scheme generation are completed by the designers with the assistance of design auxiliary software,and the scheme screening and sorting are completed by C + + program.They need to be done in three steps:scheme generation,non inferior scheme picking,and scheme ranking.(3)Regarding the decision-making of urban rail station distribution as looking for the shortest path.Different methods are selected for different stages of decision-making.The following results are obtained.In the first stage,the discrete schemes are ranked after weighting and summing their indexes.In the second stage,the multi-objective dynamic programming method is used to eliminate the bad solution of station distribution step by step.In the third stage,a comprehensive ELECTRE method is created for sorting the non inferior distribution schemes of stations.Finally,the decision-making model is established,and a decision-making program is made.(4)The decision-making problem of part of the station distribution in some urban rail construction project is analyzed by using the decision-making method established in this paper.The conclusions are as follows.The conclusions obtained by this method are basically consistent with the actual results of this project,which proves that this method can be used to solve the decision-making problem of urban rail transit station distribution in actual production.