OS Open Roads is supplied as a national vector tile set in a single MBTiles file. This is a lightweight set of tiles that are efficient and fast to render in your software, provide high-resolution data and give a seamless experience when zooming in and out. The data is supplied in Web Mercator projection (ESPG:3857).
The naming of attributes between vector tiles and GML file is very similar as the vector tiles set within the MBTiles file is not limited in the number of characters for an attribute name. The tables included here map the GML attribute name to the attribute name in the vector tiles.
An asterisk symbol (*) in the following tables indicates that a particular attribute is not available in vector tiles (for example, the fictitious attribute is available in GML, but not in vector tiles).
The vector tiles schema, as well as the attribute zoom levels, is detailed in the following three tables. The Zoom levels columns indicate whether or not the specified layer and attribute are displayed within that zoom level (Y – yes, N – no).
| Attribute | Zoom level: 0 to 8 | 9 | 10 | 11 | 12 | 13 | 14 |
|---|---|---|---|---|---|---|---|
| Attribute | Zoom level: 0 to 8 | 9 | 10 | 11 | 12 | 13 | 14 |
|---|---|---|---|---|---|---|---|
| Attribute | Zoom level: 0 to 8 | 9 | 10 | 11 | 12 | 13 | 14 |
|---|---|---|---|---|---|---|---|
id
N
Y
Y
Y
Y
Y
Y
junction_number
N
Y
Y
Y
Y
Y
Y
id
N
Y
Y
Y
Y
Y
Y
road_classification
N
Y
Y
Y
Y
Y
Y
road_function
N
Y
Y
Y
Y
Y
Y
form_of_way
N
Y
Y
Y
Y
Y
Y
road_classification_number
N
Y
Y
Y
Y
Y
Y
name_1
N
Y
Y
Y
Y
Y
Y
name_1_lang
N
Y
Y
Y
Y
Y
Y
name_2
N
Y
Y
Y
Y
Y
Y
name_2_lang
N
Y
Y
Y
Y
Y
Y
length
N
Y
Y
Y
Y
Y
Y
primary_route
N
Y
Y
Y
Y
Y
Y
trunk_road
N
Y
Y
Y
Y
Y
Y
id
N
Y
Y
Y
Y
Y
Y
form_of_road_node
N
Y
Y
Y
Y
Y
Y
| GML attribute | Vector tiles attribute |
|---|---|
| GML attribute | Vector tile attribute |
|---|---|
| GML Attribute | Vector Tiles attribute |
|---|---|
id
id
formOfRoadNode
form_of_road_node
id
id
fictitious
*
roadClassification
road_classification
roadFunction
road_function
roadClassificationNumber
road_classification_number
name1
name_1
Specified in the GML tag for name1 as xml:lang
name1_lang
name2
name_2
Specified in the GML tag for name2 as xml:lang
name_2_lang
formOfWay
form_of_way
length
length
primaryRoute
primary_route
trunkRoad
trunk_road
roadStructure
*
loop
*
startNode
*
endNode
*
numberTOID
*
nameTOID
*
id
id
junctionNumber
junction_number