| +/- highway=tertiary
A tertiary road in Germany. Generally for use on roads wider than 4 metres (13') in width, and for faster/wider minor roads that aren't A or B roads.
A class of road between secondary and unclassified. There are a number of roads that are not secondary roads but are far too big/fast to be labeled as unclassified, most of which turn out to be 'C' roads (tertiary).
How to map
To map a simple tertiary highway you can just draw a line for it. Select all ways which belong to the highway and tag them with highway=tertiary. Use oneway=yes when it is not possible to drive in both directions on the highway. Make sure the way points in the same direction as the one way goes, otherwise reverse the direction or use oneway=-1.
To attach more information for the highway you should add further keys.
- name=name The name of the highway, for example Skipton Road．
- maxspeed=number The maximum speed which is allowed on the road, for example "120" (in metric countries) or "50 mph"
- ref=reference name # The reference number of the road, for example R 372 or C452
- loc_name=name The unofficial or local name for a road
- maxweight=number The weight limit in tonnes, for example 5.5.
|Australia||Other roads linking towns, villages and Points of Interest to each other and the secondary network. In South Australia, roads that are classified as a 'D' route under the Alphanumeric system use this classification.||Australian Roads Tagging|
|UK||Generally 'C' roads. However, 'C' roads classification is rarely publicized and frequently only used by local authorities, for maintenance and planning purposes. In England, responsibility for designating 'C' roads is usually vested in the county councils, each of which decides upon its own numbering system. A 'C' road crossing a county boundary will probably undergo a number change and may cease to be a 'C' road altogether.|