# RoadCLine

Line representing the estimated centre line of a road.

<figure><img src="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2F1V26uMgaOa7og4Q5ur4N%2Fimage.png?alt=media&#x26;token=8cafc4f0-9c86-4ab2-a601-372e08dc1a1c" alt="UML diagram of the RoadCLine Feature Type, listing its ten attributes. The feature type and its attributes are described in detail in the FeatureType RoadCLine table." width="315"><figcaption><p> UML diagram showing the RoadCLine Feature Type in the GML supply.</p></figcaption></figure>

## RoadCLine attributes

### polyline

An ordered set of points forming a line feature.

* **Type:** GM\_Curve
* **Length:** N/A
* **Multiplicity:** \[1]

### featureID

A unique feature identification. IDs will be retained between iterations but will not be version controlled.

* **Type:** CharacterString
* **Length:** 38
* **Multiplicity:** \[1]

### featureCode

A unique feature code to facilitate analysis and styling.

* **Type:** [FeatureCodeValue](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-vectormap-local/os-vectormap-local-technical-specification/feature-codes-and-descriptions)
* **Length:** 5
* **Multiplicity:** \[1]

### featureDescription

A description of the feature code.

* **Type:** [FeatureDescriptionValue](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-vectormap-local/os-vectormap-local-technical-specification/feature-codes-and-descriptions)
* **Length:** 60
* **Multiplicity:** \[1]

### roadNumber

The number of the road defined by the Department for Transport.

* **Type:** CharacterString
* **Length:** 10
* **Multiplicity:** \[0..1]

### roadName

The name of the road as reflected in local signage.

* **Type:** CharacterString
* **Length:** 100
* **Multiplicity:** \[0..1]

### drawLevel

The drawLevel value of the Road, used for cartographic styling. The valid values are defined in the DrawLevelValue code list.

* **Type:** [DrawLevelValue](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-vectormap-local/os-vectormap-local-technical-specification/code-lists/drawlevelvalue)
* **Length:** 1
* **Multiplicity:** \[1]

### override

The override value of the Road, used for cartographic styling.

* **Type:** Boolean
* **Length:** N/A
* **Multiplicity:** \[1]

### suppressed

The suppressed value of the Road, used for cartographic styling.

* **Type:** Boolean
* **Length:** N/A
* **Multiplicity:** \[1]

### inTunnel

Determines whether the road alignment is in a tunnel and is used for cartographic styling.

* **Type:** Boolean
* **Length:** N/A
* **Multiplicity:** \[1]