Track circuit
Circuito de vía
- Date
- 1872 · confidence high
- Place
- Kinzua, Pennsylvania, United States
- Credited to
- William Robinson
- Field
- Movement
What it is
Electrical device that proves the absence of a train on a section of track through the rails themselves, devised by William Robinson as the basis of automatic block signalling.
What it led to
- Automatic railway block signalling
- Modern interlocking systems
- Axle counters as a later alternative
- Foundations of electrical railway safety