The signaling method and instruction speed for three position signals are presented below.
The basic signaling system consists of R,Y and G, and YG added as necessary.
Proceed signal (G) Maximum speed for the section
Reduced signal (YG) 65 km/h
Caution signal(Y) 45 km/h
Alarm signal (YY) 25 km/h
Stop signal (R) Stop
Fig. 10 Signaling system
Fig. 10-2
Fig. 10-3
Fig. 10-2 shows the basic signaling system. When a train operating at the planned speed confirms the caution signal of signal B, the train reduces its running speed to pass signal B at a speed of 45 km/h or less. Then the stop signal of signal A causes the train to stop at a position 50m outside of (in front of) signal A.
In this case, Fig. 10-3 shows the signaling system when the block section for signal B is shorter than the required braking distance from a speed of 45km/h. Here, signal B displays YY, and signal C displays YG.
(4) Braking distance and maximum operating speed
The signaling method is determined by the relationship between the block section length and the braking distance of the train. Since the signal confirmation distance is set at 600 m for practical purposes, the braking distance is also limited by this figure. The results of
