Urban rail transit station vulnerability measuring method

Abstract

The invention discloses an urban rail transit station vulnerability measuring method. The urban rail transit station vulnerability measuring method comprises the following steps: establishing a vulnerability assessment index system and giving a calculation formula for each index; calculating the vulnerability index through a grey correlation analysis method; and then grading the vulnerability according to the calculation results by means of a K-Means clustering method, so as to measure the vulnerability of the transit station ultimately. The invention overcomes the deficiencies of the researchon the vulnerability of the rail transit station in the rail transit emergency management in the prior art, and provides the urban rail transit station vulnerability measuring method. The urban railtransit station vulnerability measuring method can be used for quantitative analysis and evaluation of the vulnerability of urban rail transit stations, and can learn the weak links in the rail transit network, so that the operation department can protect the weak links in the emergency management process, which facilitate meeting emergency situations; therefore, the flexibility and safety of theurban rail transit are further improved; and the invention has important significance for ensuring the stable operation of the urban rail transit.

Description

[0001] Field [0002] The invention belongs to the field of rail transit, and in particular relates to a method for measuring the vulnerability of urban rail transit stations. Background technique [0003] With the gradual formation of the rail transit network pattern, the continuous growth of passenger flow and the continuous shortening of the peak hour departure interval, a series of new safety issues and challenges have been brought to the traffic organization and operation management. At the same time, because rail transit is generally located in a confined underground space, during peak hours, the intensity of passenger flow is high, the driving interval is short, and the adjustment of driving organization is difficult. Once a major emergency occurs at a certain station or a certain line, it will quickly spread to adjacent lines or even The entire line network will have a serious impact on the transportation system of the entire city, causing large economic losses, and ev...

AI Technical Summary

Problems solved by technology

[0005] Although scholars at home and abroad have begun to pay attention to the vulnerability of urban rail transit systems, most of the existing research only focuses on the theoretical analysis of the vulnerability of the rail transit network system, such as the analysis of vulnerability factors, quantitative analysis and evaluation of vulnerability, such as Chang S E [ Transportation performance, disaster vulnerability, and long-term effects of earthquakes[C].In: Second EuroConference on Global Change and Catastrophe Risk Management. Laxenburg, Austria, 2000.1-12.] studied the exposure of urban transportation system in the face of natural disasters vulnerability; for example, Ye Qing [Analysis of Rail Transit Network Vulnerability Based on Complex Network Theory[J]. Chinese Journal of Safety Science, 2012, 22(2): 122-126] select some network characteristic parameters to quantitatively calculate the vulnerability of the site To identify the key stations of the rail transit network and provide reference for the optimization and improvement of operation management. However, the field of rail transit has not yet met the requirements for practical applications. Therefore, the vulnerability of rail transit stations is integrated into the current development of the field to solve practical problems. Application requirements have become a major technical problem that needs to be solved and overcome urgently

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