This is an optional layer, and its content is defined as follows.
This layer contains deduplicated labeling properties (
shield_text) and simplified label placement geometry for all kinds of transportation, including but not limited to highways, major roads, minor roads, paths and ferries, which are present in the
roads layer, each road segment contains labeling properties, which could be the same (and there are a lot of them) for consecutive road segments. To remove such duplicates and avoid post processing on the client side, the
road_labels layer stores already merged and simplified consecutive road segments with the same name properties. However, you still can decide which layer (
road_labels) best suits your special needs as a source of labeling properties.
name- Generally the name the locals call the feature, in the local language script.
ref- A commonly used reference for roads - for example, "I 90" for Interstate 90. To use with shields, see the
network- This property is useful for shields and road selections - for example,
US:Ifor the United States Interstate network. It contains only road network types. For more information, see a full list of possible road
shield_text- This property contains the text to display on a shield. For example, I 90 would have a
I 90, is less useful for shield display without further processing. For some roads, this property can include non-numeric characters - for example, the M1 motorway in the UK has a
M1, rather than just
all_route_types- All the route types of which this road is a part. This is given as semicolon-separated numeric codes used for shield styling depending on the country.