Information Transmission
Cab signals require a means of transmitting information from wayside to train. There are a few main methods to accomplish this information transfer:
- Mechanical
- Magnetic field
- Electric current
- Inductive (changing magnetic field)
- Coded track circuits.
Read more about this topic: Cab Signalling
Famous quotes containing the word information:
“Information networks straddle the world. Nothing remains concealed. But the sheer volume of information dissolves the information. We are unable to take it all in.”
—Günther Grass (b. 1927)