# British absolute block signalling

> signalling scheme designed to ensure the safe operation of a railway by allowing only one train to occupy a defined section of track (block) at any time

**Wikidata**: [Q4971266](https://www.wikidata.org/wiki/Q4971266)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Absolute_block_signalling)  
**Source**: https://4ort.xyz/entity/british-absolute-block-signalling


## References

1. [Source](https://lingualibre.fr/wiki/Q2319)