GWSW Ontologie
| Naam | Instorting – compleet verlies van structurele stabiliteit  |
Collapse - complete loss of structural integrity  |
| URI | BACbc |
| Codering | C |
| Is type | Nature of the break or collapse (coll) |
| Nature of the break or collapse (manhole) (coll) | |
| Extent of displacement (manhole) (coll) |