Railway semaphore signal
One of the earliest forms of fixed railway signal is the semaphore. These signals display their different indications to train drivers by changing the angle of inclination of a pivoted 'arm'.
One of the earliest forms of fixed railway signal is the semaphore. These signals display their different indications to train drivers by changing the angle of inclination of a pivoted 'arm'.
Railway signalling | |
|---|---|
| Block systems | Token • Train order operation • Centralized traffic control • Chinese Train Control System • Transmission Voie-Machine • European Train Control System • Radio Electronic Token Block • Automatic Block Signalling • Positive Train Control • Communication-based train control |
| Signalling control | Integrated Electronic Control Centre • Interlocking • Lever frame • Solid State Interlocking • Westlock Interlocking |
| Signals | Application of railway signals • Railway semaphore signal • Cab signalling • British railway signals • North American railroad signals |
| Train detection | Axle counter • Track circuit • Treadle |
| Train protection | Automatic Train Control • Automatic Train Protection • Automatic Warning System • Automatische treinbeïnvloeding • Balise • Continuous Automatic Warning System • Contrôle de vitesse par balises • EBICAB • Integra-Signum • Le Crocodile • Linienzugbeeinflussung • Pulse code cab signaling • Punktförmige Zugbeeinflussung • RS4 Codici • Sistema Controllo Marcia Treno • Slide fence • Train Automatic Stopping Controller • Train Protection & Warning System • Train stop |
| Organisations | AAR • AREMA • FRA • HMRI • IRSE • Transport Canada • UIC |
| By country | Australia • Belgium • Canada • Finland • France • Germany • Greece • Italy • Japan • Netherlands • North America • Norway • Sweden • Switzerland • United Kingdom |