Qichang Li1,2,*, Bing Bu1, Junyi Zhao1
CMC-Computers, Materials & Continua, Vol.83, No.3, pp. 4281-4313, 2025, DOI:10.32604/cmc.2025.061525
- 19 May 2025
Abstract With the integration of informatization and intelligence into the Communication-Based Train Control (CBTC) systems, the system is facing an increasing number of information security threats. As an important method of characterizing the system security status, the security situation assessment is used to analyze the system security situation. However, existing situation assessment methods fail to integrate the coupling relationship between the physical layer and the information layer of the CBTC systems, and cannot dynamically characterize the real-time security situation changes under cyber attacks. In this paper, a hierarchical security situation assessment approach is proposed to address… More >
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