궤도밀착형 철도용 신호기의 적용에 대한 연구

There are main signal, subsidiary signal and optional signal in signal flags in railway. The signal flags are installed up or left and right tracks of running trains and are installed in special position according to purposes. However, train crew are not realize the colar of signal flags by installing railway equipment nearby the signal flags. Moreover, it is possible to confuse the color of sense which is red with the color of signal flags. When trains are driven in depots where hold track signals are installed between many rails, it is possible that the train crew confuse the left singal flag with the right signal flag. In this paper, contact to track-type signal flag in railway is presented and the effect of the signal flag is demonstrated through a survey to the train crew.