Home▸Transport & Urbanism▸Railway Track Circuit: Ballast Leakage, Shunt Sensitivity and Relay Pick-up (2D)

🚦 Railway Track Circuit: Ballast Leakage, Shunt Sensitivity and Relay Pick-up (2D)

2D railway track circuit lab: rails as a leaky transmission line with ballast leakage, wheelset shunts, relay pick-up and drop-away.

Transport & Urbanism2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

2D lab of a DC track circuit as a lossy transmission line: rails, wet or dry ballast leakage, feed resistor, relay thresholds and a train wheelset shunt decide whether the signal sees the block as clear or occupied.

Track CircuitRailway SignallingTransmission LineFail-safe DesignRailway Engineering

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install