road-bed

The workers are compacting the road-bed for the new railway.

Definition

1. Noun:
   • The foundation or base of a road: "road-bed" refers to the prepared ground or layer of material on which a road or railway track is constructed. It provides structural support for the pavement or rails.
   • The part of a road or railway on which the traffic runs: Specifically, the surface or structure that carries the weight of vehicles or trains.

Usage Examples

• (The prepared foundation for the road.)
• (The base layer supporting the rails.)
• (The underlying structure of the road.)

Advanced Usage

• "to prepare the road-bed": to construct or level the foundation for a road or railway.

  • Before paving, the crew spent weeks preparing the road-bed. (Creating a stable base for the surface layer.)

• "road-bed erosion": the wearing away of the foundation material due to water or weather.

  • Road-bed erosion is a common problem in mountainous areas. (The loss of the base layer due to natural forces.)

Variants and Related Words

• Roadbed (n): a common alternative spelling, often used in American English.

  • The roadbed was reinforced with gravel and stone. (The foundation of the road.)

• Bed (n): a base or foundation (in the context of roads or railways).

  • The track bed must be level to ensure safe train travel. (The underlying layer for the rails.)

Synonyms

• Foundation: the base on which something is built.
• Subgrade: the native soil or prepared ground that supports a road or railway structure.
• Base course: the layer of material directly beneath the pavement surface.

Related Idioms

• "to be on the road-bed": to be in the process of being constructed or prepared (used metaphorically).
  • The project is still on the road-bed — we have not begun the final paving. (Still in the early foundation stage.)

Phrasal Verbs

• Bed down: to secure or settle something into a base (not directly related but shares "bed").
  • They bedded down the rails into the road-bed. (Fixed the rails into the foundation.)

Additional Notes

• "Road-bed" is a compound noun combining "road" and "bed," where "bed" refers to a layer or foundation, not a sleeping place. It is a technical term used primarily in civil engineering and transportation infrastructure.