The function features,field application and implementation approaches of TVM 300 cab signal system with speed supervision were introduced in this paper. Also,the prospect of its development was unfolded and the value of its application was affirmed.

• 介绍了TVM30 0带速度监督机车信号系统的功能特点、现场运用情况及采用的一些手段措施 ,对其发展远景进行展望 ,并对其应用价值予以肯定。