Abstract: To ensure that the high-speed train with speeds from 200 to 350  km/h or even faster can run safely and smoothly, the ballastless or ballast track must have high riding comfort. As the precise control reference of railway ...

Abstract: Track irregularities generate train vibrations. The precise adjustment of a track after locking a long rail and dispersing its stress during railway operation and maintenance are crucial to ensure high-speed, stable, and ...

Abstract: This paper presents our research results of visualizing three–dimensional (3D) city models in a web explorer environment under the supports of the digital building model, the digital terrain model, large-scale true urban ...