Rail transit station vulnerability evaluation method based on PSR model

Abstract

The invention relates to a rail transit station vulnerability evaluation method based on a PSR model, and the method comprises the following steps: S1, obtaining data, and storing the related data of an urban rail transit system in a database; s2, establishing an evaluation index system based on a PSR model, including a pressure P index based on human and environmental factors, a state S index based on equipment factors, and a response R index based on management factors; s3, determining an index data type in the evaluation system, and extracting to-be-evaluated site information data in the database for dimensionless standardization processing; s4, determining the index weight of each index by using an expert scoring method and an analytic hierarchy process-entropy weight combination method; s5, performing unification processing on the data after the dimensionless standardization processing in the step S3; and S6, performing vulnerability scoring based on a superior and inferior solution distance method. According to the method, the vulnerability of the rail transit station can be quantitatively evaluated in multiple directions, and the method is more practical and universal.

Description

technical field [0001] The invention relates to the field of urban subway operation and management, and more particularly, to a method for evaluating the vulnerability of rail transit stations based on a PSR model. Background technique [0002] With the expansion of urban scale and population surge in my country, the increasing traffic demand makes rail transit the focus of the current urban passenger transportation development. During the operation of the rail transit system, once an emergency such as random failure or deliberate damage occurs at a certain station, it will not only cause the passengers at the accident station to be stranded, but also cause delays in the passenger flow of other stations. Therefore, a scientific and comprehensive evaluation of the vulnerability of rail transit stations can prevent the occurrence of emergencies, thereby reducing the negative impact of incidents. [0003] Rail transit emergencies are diverse and are caused by a combination of ...

AI Technical Summary

Problems solved by technology

[0003] Rail transit emergencies are diverse and are caused by a variety of factors. However, the existing evaluation methods for rail transit vulnerability mostly start from a single scenario and tend to evaluate a specific disaster or a specific system. Comprehensive rail transit station vulnerability evaluation system

At the same time, most of the existing technologies use qualitative methods to summarize the influencing factors, and the mainstream evaluation methods such as Delphi method and analytic hierarchy process have problems such as strong subjectivity.

[0004] Therefore, there is currently a lack of a targeted, scientific and comprehensive vulnerability assessment method for urban rail transit stations

Images