Research on cloud model for safety evaluation of rail transit vehicle system

doi:10.16265/j.cnki.issn1003-3033.2019.09.008

Abstract

Abstract: In order to evaluate safety status of rail transit vehicle systems more accurately and solve ambiguity of single method evaluation, an evaluation method based on SD and cloud model is proposed. Firstly, a safety evaluation index system was put forward on the basis of questionnaire survey and current relevant standards. Secondly, principal component analysis and SD model were used to analyze weights of each index. Then, a cloud model for safety evaluation of rail transit vehicle system was established to assess safety status of the system and its subsystems. Finally, model verification was conducted with Dalian Metro Line 1 as an example. The results show that drive system, vehicle safety equipment and vehicle monitoring system constitute important subsystems of rail transit vehicle system. Safety evaluation cloud model can intuitively assess system safety and facilitate its safety management.

Key words: rail transit vehicle system, indicator system, system dynamics (SD), cloud model, safety evaluation

CLC Number:

X913.4

WANG Kang, DONG Sihui. Research on cloud model for safety evaluation of rail transit vehicle system[J]. China Safety Science Journal, 2019, 29(9): 51-56.

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