| NOUN | artifact | roadbed | a bed supporting a road |
|---|
| Meaning | A bed supporting a road. | |
|---|---|---|
| Part of | road, route | An open way (generally public) for travel or transportation / transportation |
| Parts | traffic island, safety island, safety isle, safety zone | A curbed area in a roadway from which traffic is excluded |
| Broader | bed | A foundation of earth or rock supporting a road or railroad track |
| Spanish | capa de balasto | |
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