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In transport engineering, subgrade is the term used in the US for the native material underneath a constructed road, pavement or railway track (US: railroad track). In British English it is called formation level.
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Explore the main themes, entities and connections around Subgrade. Start with the topic map, then use the sections below for research and deeper semantic analysis.
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resilient modulus used pavement track term material level cause also road soil engineering railway provides upper surface courses construction situ
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Subgrade | is a | term used in the US for the native material underneath a constructed road | 0.90 | text |
| lightweight deflectometer | instance of | destructive testing methods | 0.80 | text |
| Subgrade | related to Construction | Subgrades | 0.60 | section |
| Subgrade | related to Construction | This | 0.60 | section |
| Subgrade | related to Resilient modulus and in‑situ evaluation | In | 0.60 | section |
| Subgrade | related to Resilient modulus and in‑situ evaluation | Mr | 0.60 | section |
| Subgrade | related to Resilient modulus and in‑situ evaluation | The | 0.60 | section |
| Subgrade | related to Resilient modulus and in‑situ evaluation | Non | 0.60 | section |
| Subgrade | related to Resilient modulus and in‑situ evaluation | LWD | 0.60 | section |
| Subgrade | related to Resilient modulus and in‑situ evaluation | Research | 0.60 | section |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.