In Germany the standard distance from a distant signal to its home signal is 1,000 metres (3,300 ft). On a train with strong brakes, this is the See more

Cable loops
The LZB control centre communicates with the train using conductor cable loops. Loops can be as short as 50 metres long, as used at the entrance and exit to LZB controlled track, or as long as 12.7 km (7.9 mi). Where the … See more

Telegrams
LZB operates by exchanging telegrams between the central controller and the trains. The central controller transmits a "call telegram" using See more

The LZB system has been quite safe and reliable; so much so that there have been no collisions on LZB equipped lines because of the … See more

Choice of cab signalling
In the 1960s, the German railways wanted to increase the speeds of some of their railway lines. One … See more

The vehicle equipment in the original LZB80 designed consisted of:
• Computers: The on-board equipment centred around a 2-of-3 computer system. The original LZB 80 design used 8085 microprocessors programmed in assembly language See more

CIR ELKE-I
CIR-ELKE is an improvement on the basic LZB system. It uses the same physical interface and packets as standard LZB but upgrades its … See more