The RIEGL VMX-RAIL is a specialized mobile laser scanning system designed for railway corridor mapping and infrastructure inspection. Mounted on rail vehicles, the system integrates high-performance LiDAR sensors with GNSS and IMU positioning to capture dense and highly accurate georeferenced point clouds at operational speeds. It enables efficient documentation of railway tracks, tunnels, overhead lines, and surrounding infrastructure, supporting maintenance planning, digital twin creation, and rail network modernization.