User:3247/HighwayNG

classification

The classification indicates the function of a road. A higher class means better mobility but less access.

Often, the functional classification can be derived from national classification schemes.

Roads may have different classifications for different modes of transportation. For example, national cycle networks often deviate from the the national road network for motorised vehicles. These can be tagged as bicycle:class=1.

Key	Value	Element	Comment
class	1		ways that are part of a national or super-national network, ways used to get around a country or continent. DE: Bundesfernstraßen; UK: motorways/A-roads; US: Interstates
class	2		ways that are part of a sub-national network. DE: Staats-/Landesstraßen; UK: B-roads; US: other arterials
class	3		ways that are part of a district or local network, local roads usually preferred over other roads. DE: Kreisstraßen; UK: C-roads; US: collector roads
class	4-9		reserved for future use
class	10		ways used for local access DE: Gemeindestraßen; UK: unclassified roads; US: local roads

road condition

The road condition indicates the standards to which a road was built. Usually, roads that are classified higher also have a better condition. However, this need not be the case for roads in developing countries or unpopulated areas.

Key	Value	Element	Comment	Photo
condition	grade-separated		paved fully grade-separated often dual carriageways with multiple lanes per direction (indicated by other tags)
condition	marked		paved at-grade intersections road markings (or reservation) separating the two directions of traffic
condition	paved		paved or heavily compacted hardcore no road markings few traffic signs
condition	unpaved		unpaved surface of gravel or densely packed dirt/sand
condition	dirt		unpaved surface of a mixture of hard and soft materials often no plane surface
condition	green		unpaved lack of hardcore, subtle on the landscape often unplanned/not built but arisen from common usage

applicable rules of the road

These tags indicate which rules of the road apply. In countries where a

Key	Value	Element	Comment	Rendering	Photo
motorway	yes		Motorway regulations apply; this usually means higher speed limits and restrictions for some vehicles. In European countries, this is indicated by a sign showing a bridge over a dual-carriageway road on blue or green background.
motorroad	yes		Motorroad regulations apply; this sometimes means higher speed limits and restrictions for some vehicles. In European countries, this is indicated by a sign showing the front of a passenger car on blue or green background.
urban	yes		Regulations for urban areas apply. In the UK, this is the case if the street has street lights. In Germany, this is indicated by yellow signs showing the locality name.
rural	yes		Regulations for rural (non-urban) areas apply.

Highway shorthands

Key	Value	shorthand for
highway	motorway	class=1; condition=grade-separated; motorway=yes;
highway	trunk	class=1; condition=grade-separated
highway	primary	class=1; condition=marked
highway	secondary	class=2; condition=marked
highway	tertiary	class=3; condition=marked
highway	unclassified	class=10
highway	residential	class=10