interlockingjärjestelmät
Interlockingjärjestelmät (interlocking systems) are railway signalling devices that ensure the safe and efficient movement of trains by preventing conflicting routes and reducing the risk of accidents. The core function of an interlocking is to control points (switches), signals, and track circuits in a coordinated manner so that only one train can occupy a specified section of track at a time.
Historically, the first mechanical interlockings appeared in the mid‑19th century, using lever frames and locked rods
Interlockingjärjestelmiin kuuluvat (components that belong to an interlocking system) include point machines, signal gantries, track‑circuit relays,
The benefits of interlocking systems are twofold: operational safety is enhanced by preventing conflicting movements, and