India/Tags/Highway

National Highway Map of India

New NH numbering scheme (2010)

This page details out the tagging scheme of the road network in India. India has over 3 million kilometers of roads making it the worlds third largest road network. The tagging scheme detailed here provides consistent tagging guidelines for all existing levels of the road hierarchy on both a national scale and a local scale.

The scheme is aimed at preserving the traffic hierarchy of Indian roads and for describing the network for much more advanced routing capabilities.

Road classification and tagging scheme for India (proposal)

See Tagging samples for examples of usage.

Highways / Major Road network

The following major roads forms the primary national road network. All sections have a unique identifier which is published on road markers and signages on the route.

• Indian Road Congress - Classification of roads
• Indian Road Congress - Roads and Bridges Hanbook
• Wikipedia - Roads in India
• Basic Road Statistics in India and definitions - Ministry of Road Transport

Official Class	Id ref=*	OSM tag	Description	Tagging guidelines	Photo
National Expressways	NE	highway=motorway	Completely access controlled tolled highways designed for high speed road travel.	Note: use this highway classification for greenfield projects not for upgraded National Highways in India!	Mumbai Pune Expressway
National Express Highways	NH	highway=trunk +motorroad=yes	Partially access controlled and tolled upgraded national highways designed for high speed road travel. Projects falling under the National Highway Development Project.	trunk roads with motorroad=yes have multiple lanes of traffic in each direction, separated by a central barrier with grade-separated junctions and access restricted. e.g. Allahabad Bypass Road	Trunk link
National Express Highways	NH	highway=trunk +motorroad=no	Partially access controlled and tolled upgraded national highways designed for high speed road travel. Projects falling under the National Highway Development Project.	trunk roads with motorroad=no have multiple lanes of traffic in each direction, separated by a central barrier, but with normal crossings. e.G. NH2, NH4, NH6, NH8	Golden Quadrilateral between Chennai-Bangalore
National Highways	NH	highway=trunk	Highways which have heavy traffic intensity and connect different State capitals, Major Ports, large industrial areas and tourist centres	See WikiProject_India/National_Highway_Network and https://wiki.openstreetmap.org/wiki/National_Highways_%28new_numbering%29 for route relations. Use the ref-tag for the new numbering scheme (like ref=NH448). Put the old NH-numbers in a ref:old-tag (like „ref:old=NH65A“). Use the name-tag only for real local names.
State Express Highways	SH	highway=primary +motorroad=yes	State highways that have been upgraded to dual carriageways with improved road geometry and road safety features. Tolled and partially access controlled state highways.	State roads with motorroad=yes have multiple lanes of traffic in each direction, separated by a central barrier with grade-separated junctions
State Highways	SH	highway=primary	Highways which link district headquarters, important towns and the National Highways in the State and neighbouring States. These roads are atleast 1.5 lanes wide (>5.5m)
Major District Roads	MDR	highway=secondary	Highways that connect production and marketing centres and these centres in turn are connected with the National Highways and State Highways. These roads are typically 1.5 lanes wide (3.5-7m)
Other District Roads	ODR	highway=tertiary	Roads serving rural areas of production and providing them with outlet to market centers, taluk headquarters, Block Development headquarters or other main roads. These roads are typically 1.5 lanes wide (3.5-5.5m)	Useful with surface=unpaved for unpaved roads.
Village Roads	VR	highway=unclassified	Roads that connects villages, but not a ODR. This is the most common type of road in rural India and is usually not more than 1 lane wide (<3.5m).	Useful with surface=unpaved for unpaved roads.

Frontage roads

Frontage roads run parallel to the main highway that connects local traffic to the highway. These are most commonly found along national highways, especially when there is a settlement along the side. These roads usually carry two-way traffic including human and animal movement. Although they are popularly called 'Service roads', functionally they usually behave as collector roads for local traffic for settlements along the sides of the highway.

As the frontage road is minor then the major road, it must also have a minor highway=* tag than the major road.

OSM tag	Description	Tagging guidelines	Photo
highway=unclassified	Usually single laned and only connects to other residential or unclassified roads along a highway settlement.		https://www.mapillary.com/app/?lat=12.466927300000009&lng=78.21415619999993&z=17&pKey=zDeIG78qdAjNJxFHZtvNpA&focus=photo
highway=tertiary	Single or double laned and acts as a main road between settlements along the highway.		https://www.mapillary.com/app/?lat=12.838488055555558&lng=77.67787305555555&z=17&pKey=5wBOnmd3OenrrTtrpZoCtQ&focus=photo

Highway service roads

OSM tag	Description	Tagging guidelines	Photo
highway=service	Use only for single laned roads used to access highway services such as fuel stations		https://www.mapillary.com/app/?lat=12.665936666666667&lng=78.00243833330556&z=17&pKey=jmiRYKyhMrb0TOmO4ySvtQ&focus=photo

Urban Roads

The following roads forms the road network in urban areas like cities and towns. Sections of these roads carrying very high density are usually oneway (oneway=yes) and intersections are restricted by having a parallel highway=service road to collect local traffic. Major intersections are usually grade seperated or are regulated using highway=traffic_signals. For all practical purpose the roads in an urban area can be considered as those roads that are enclosed within designated ring roads or bypass roads.

• Wikipedia - Heirarchy of Roads

Class	OSM tag	Description	Tagging guidelines	Photo
Expressway	highway=motorway	High speed signal-free arterial roads which are either completely elevated or has grade separated intersections.
Arterial Roads	highway=trunk	Extensions of National Highways into the city centre. These corridors usually carry the bulk of freight traffic from one end to the other, like ring roads, or roads connecting the ports.	The National Highway ref=NH tag should not be used within cities and should ideally terminate at the ring road/bypass or follow them around the city	Chennai Mount Road
Primary Collector or Sub-arterial Roads	highway=primary	Road corridors that carries a huge volume of traffic between arterial roads.		Bangalore MG Road
Secondary Collector Roads	highway=secondary	Collector roads that carry lower volume of traffic.
Main Roads	highway=tertiary	Main roads inside suburbs.
Neighbourhood feeder road	highway=tertiary or residential	Roads in a neighbourhood that collects local traffic and feeds into the main and major roads. It can be a tertiary or residential road based on traffic density and road size.

Local Roads

The following roads cater to local traffic movement over short distances and feed traffic into bigger roads. Speed is usually restricted due to narrow widths, high number of intersections or by traffic calming devices like traffic_calming=bump. Access restrictions can be indicated by using the access=* tag.

Class	OSM tag	Description	Tagging guidelines	Photo
Unknown or unverified road	highway=road	Roads traced from satellite imagery and who's classification has not been determined. This is a temporary tag indicating further ground survey work is required.
Residential road	highway=residential	General residential roads in a planned locality. Wide enough to carry two-way slow moving residential traffic. Usually has cars parked by the side and footpaths for pedestrians
Living street	highway=living_street	Narrow residential roads in older parts of the city or congested areas. Usually has houses constructed continuously without spacing and no footpaths on the sides. Not wide enough to carry two way car traffic smoothly.
Pedestrian	highway=pedestrian	Roads that are almost exclusively used by pedestrians and are out of bounds of motor vehicles in normal conditions like plazas and internal roads of universities.
Unpaved motorable tracks	highway=track +tracktype=*	Dirt or gravel tracks or 'kuchha' roads mostly found in rural areas. Usually used by jeeps, tractors or other forms of non motorized transport such as bullock carts and cycles.

Pedestrian Paths

These roads are meant for pedestrians and cannot be used by motorized transport. Use bicycle=yes and access=* to specify restrictions.

Class	OSM tag	Description	Tagging guidelines	Photo
Footpaths	highway=footway	Paved paths designated for pedestrian use like footpaths. Also can be used for narrow 'gullys' which cannot be accesed by vehicles.
Unofficial paths	highway=path	'Kuccha' tracks or dirt paths that are frequently used by pedestrians or cyclists. Also used for mountain trails and trekking paths alongwith sac_scale=*