# Road

| Field | Value |
| --- | --- |
| Discipline | ARC |
| Authorities | URA, LTA |
| Pages (COP v3.1) | 91–92 |
| IFC Bindings | 6 |
| Parameters | 19 |
| Declarative-only bindings | 1 |
| Source | CORENET X Code of Practice v3.1 |
| Source link | [View on CORENET X ↗](https://info.corenet.gov.sg/ifc-sg/bim-data-(ifc-sg)/glossary-of-identified-components?id=589578ab-465a-402b-9aab-b7970e3d9178) |

## IFC Bindings

| # | IFC Entity | Predefined subtype(s) | Params | Notes |
| --- | --- | --- | --- | --- |
| 1 | `IfcCivilElement` | DRIVEWAY | 5 |  |
| 2 | `IfcBuildingElementProxy` | HUMP | 0 | declarative only |
| 3 | `IfcCivilElement` | CARRIAGEWAY | 4 |  |
| 4 | `IfcSpace` | PARKINGACCESSWAY, FIREENGINEACCESSROAD, FIREENGINEACCESSWAY, VEHICULARSERVICEROAD | 2 |  |
| 5 | `IfcBuildingElementProxy` | ACCESSPOINT | 4 |  |
| 6 | `IfcCivilElement` | ROADKERB | 4 |  |

## Parameters

See `parameters.json` for the machine-readable, binding-grouped data (with resolved `allowed_values` for input-limited fields).

| IFC Entity | S/N | Property | Type | Unit | Input limited | Example |
| --- | --- | --- | --- | --- | --- | --- |
| `IfcCivilElement` | 1 | DesignedVehicleMass | Real |  |  |  |
| `IfcCivilElement` | 2 | Egress | Boolean |  | Y | TRUE / FALSE |
| `IfcCivilElement` | 3 | Ingress | Boolean |  | Y | TRUE / FALSE |
| `IfcCivilElement` | 4 | Material | Text |  |  |  |
| `IfcCivilElement` | 5 | RoadCategory | Text |  |  |  |
| `IfcCivilElement` | 1 | Egress | Boolean |  | Y | TRUE / FALSE |
| `IfcCivilElement` | 2 | Ingress | Boolean |  | Y | TRUE / FALSE |
| `IfcCivilElement` | 3 | RoadCategory | Text |  |  |  |
| `IfcCivilElement` | 4 | Material | Text |  |  |  |
| `IfcSpace` | 1 | LoadingCapacity | Real | tonnes | Y | 24; 30; 50 |
| `IfcSpace` | 2 | Material | Text |  |  |  |
| `IfcBuildingElementProxy` | 1 | Width | Length | mm |  |  |
| `IfcBuildingElementProxy` | 2 | Egress | Boolean |  | Y | TRUE / FALSE |
| `IfcBuildingElementProxy` | 3 | Ingress | Boolean |  | Y | TRUE / FALSE |
| `IfcBuildingElementProxy` | 4 | Vehicular | Boolean |  | Y | TRUE / FALSE |
| `IfcCivilElement` | 1 | KerbType | Text |  |  | K2A |
| `IfcCivilElement` | 2 | Thickness | Length | mm |  |  |
| `IfcCivilElement` | 3 | Height | Length | mm |  |  |
| `IfcCivilElement` | 4 | Material | Text |  |  |  |