Definition

1. Noun:
   • A railway branch line that diverges from a main line and later rejoins it: A "loop-line" is a secondary railway track that forms a loop, allowing trains to bypass a section of the main line, often to manage traffic, provide alternative routes, or serve local areas before returning to the primary route.

Usage Examples

• Noun:
  • The freight train took the loop-line to avoid the congested central station.
  • Engineers constructed a loop-line to facilitate maintenance on the main tracks without halting all service.

Advanced Usage

• "to operate on a loop-line": to use the secondary, looping track.
  • During the peak season, some commuter services operate on a loop-line to increase capacity.

Variants and Related Words

• Loop (n): A shape produced by a curve that bends around and crosses itself; a similar circular or oval path or structure.
  • The roller coaster has a terrifying loop.
• Branch line (n): A secondary railway line that branches off from a main line.
  • The old branch line is now a scenic heritage railway.

Synonyms

• Bypass line: A railway line that goes around a specific area.
• Spur line: A short railway line branching from a main line (note: a spur typically ends, while a loop rejoins).

Related Phrases

• Loop the loop: To perform a complete vertical circle (in aviation, roller coasters, etc.). This is a distinct phrase not directly related to railway infrastructure.
  • The pilot amazed the crowd by making the plane loop the loop.

Noun

1. a railway branch line that branches from the trunk line and then rejoins it later on