Investigations of operational safety for high-speed rail (HSR) in complicated settings have investigated the problems of infrastructure preparation and operational safety for trains in complex operating conditions. Disaster scenarios may lead to substantial economic losses and deaths. There is a need to further understand the safety and operations of railway systems in complicated environments.

With the rapid development of HSR worldwide, the HSR system is facing severe challenges from various complex operating environments. This includes increasingly diverse geographical backgrounds and increasing disparities in climatic conditions. HSRS may be used in disaster-prone areas due to their inherent characteristics and complex aerodynamics. Due to the considerations mentioned earlier, the high-speed train track (HSTT) system exhibits extraordinarily complicated dynamics during high- speed train operation. How to ensure the safe operation of HSR in complex operating environments is a growing concern for governments and researchers.

The aim of this Special Issue is to bring together original research and review articles discussing harmonic suppression traction transformers in railway systems. We welcome submissions emphasizing on HSTT system coupling vibration theory, wind (wave) axle coupling vibration, traffic environment noise reduction, and axle vibration-based structure. This Special Issue also seeks to highlight cutting-edge HSTT system vibration coupling disaster environments research.

Potential topics include but are not limited to the following:

• Railroad tunnel construction technology in special geological conditions
• Railway tunnel underpass infrastructure
• Safety assessment study of trains on bridges
• Wheel and track wear and intelligent train operation and maintenance
• Railway bridge system, seismic isolation and rapid post-disaster assessment, Foundation settlement control
• Vibration control of the bridge system under the crosswind effect
• Light rail transit vibration assessment
• Station hall structure dynamic analysis
• Railway bridge test