Also known as formation level
thumb|right|Layers in the construction of a mortarless pavement: A.) Subgrade B.) Subbase (pavement)|Subbase C.) [[Base course D.) Paver base E.) Pavers F.) Fine-grained sand]] 450px|thumb|right|Section through railway track and foundation showing the sub-grade 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.
In the Vinony graph
Vinony's link graph records 179 inbound references to 노상, and connects out to soil science, permeability and consolidation.
It sits within the topics Pavements, Permanent way and Road transport.
Vinony links it to 10 Wikipedia language editions.
Wikidata facts
- Instance of
- fixed construction
- Part of
- road
Show 1 more fact
- different from
- planum
Sources (3)
via Wikidata · CC0