in the video, immediately pause, or you will "pass")))

here is a video where there are other signs. You can take a screenshot and then work. I made references to the time. I spread each character separately
https://youtu.be/Iwb_u0sciaY?t=223
https://youtu.be/Iwb_u0sciaY?t=261
https://youtu.be/Iwb_u0sciaY?t=284
https://youtu.be/Iwb_u0sciaY?t=300
https://youtu.be/MK00HRF3FuI - sign 45 km
https://youtu.be/MK00HRF3FuI?t=632 - tunnel numbering, here 10, then 11
https://youtu.be/MK00HRF3FuI?t=1687 speed sign
https://youtu.be/MK00HRF3FuI?t=1694 start of a dangerous section, black and white
https://youtu.be/MK00HRF3FuI?t=1710 end of the hazardous area, yellow-black

@ylij174 ty I've found what I need on wiki

https://en.wikipedia.org/wiki/File:Jokou-signal.jpg

https://fr.wikipedia.org/wiki/Utilisateur:Tomybrz/Japanese_railway_signals

for starters, this: repeating a signal
https://en.wikipedia.org/wiki/File:Japanese_repeating_signal_sequence_en.svg

I will try to find a photo or show a video. Most likely, the signs of speed and warnings of the dangerous section will most likely be used as vaponts. But I'll see what else works.

@ylij174 If there's anyone can show me pics about them I'd like to do so. Actually I've already tried to find such JR signs but I don't know what should be used as keywords to search

QQxiaoshui-2 Tell me, will you have Japanese wiponts?