Swiss railway signal: end of CAB (cab signalling zone).
Swiss federal regulation on railway signals, FDV/PCT R 300.2

https://www.bav.admin.ch/dam/bav/de/dokumente/fdv-a2020/fdv-r300-1-15-a2020.pdf.download.pdf/FDV_A2020_R300.1-.15_d.pdf
Swiss federal government, Federal office for transports (Bundesamt für Verkehr BAV, Office fédéral des transports OFT)
Redrawn in vector format by myself