block-system

block-system

A train moves safely through the block-system.

Definition
  1. Noun (Railway terminology):
    • A system of railway signalling: "block-system" refers to a method of controlling train movements by dividing the track into sections (blocks) and ensuring that only one train occupies a block at a time, thereby preventing collisions.
Usage Examples
  • Noun:
    • The railway adopted the block-system to enhance safety on busy lines. (The method of dividing tracks into blocks to control train traffic.)
    • Engineers rely on the block-system to avoid accidents when multiple trains use the same track. (The signalling system that restricts train entry into occupied blocks.)
Advanced Usage

  • "to operate under the block-system": to function using this signalling method.

    • The entire network now operates under the block-system, ensuring safe distances between trains. (The railway uses block-based control.)

  • "block-system failure": a breakdown in the signalling mechanism.

    • A block-system failure caused delays as trains had to proceed manually. (The signalling system malfunctioned.)
Variants and Related Words

  • Block (n): a section of track in this system.

    • Each block is monitored for train occupancy. (A designated segment of railway.)

  • Block signalling (n): the specific type of signals used in a block-system.

    • Block signalling uses lights or flags to indicate if a block is clear. (Signals for block control.)
Synonyms
  • Track block system: an alternative term for the same concept.
  • Sectional signalling: a method of dividing tracks into sections for safety.
Phrasal Verbs

  • Block out: to prevent something from happening or being seen (not directly related to railway).

    • The tall building blocks out the sun. (It obstructs sunlight.)

  • Block up: to cause a blockage.

    • The drain is blocked up with leaves. (It is clogged.)
Related Idioms
  • To block someone’s path: to obstruct or prevent progress.
    • The fallen tree blocked the hiker's path. (It physically obstructed the way.)

Note: The term "block-system" is highly specific to railway operations and is not used in everyday contexts. It is typically encountered in engineering, transportation, or historical railway literature.