Table 6 OpenStreetMap road descriptions

Trunk

The most important roads in a country’s system that aren’t motorways

Primary

The next most important roads in a country’s system. (Often link larger towns.)

Secondary

The next most important roads in a country’s system. (Often link smaller towns and villages.)

Tertiary

The next most important roads in a country’s system

Unclassified

The least most important through roads in a country’s system—i.e. minor roads of a lower classification than tertiary, but which serve a purpose other than access to properties

Residential

Roads which are primarily lined with and serve as an access to housing

Service

For access roads to, or within an industrial estate, camp site, business park, car park etc

Living street

Residential streets where pedestrians have legal priority over cars, speeds are kept very low and children are allowed to play on the street

Road

A road where the mapper is unable to ascertain the classification from the information available

Connector roads

Roads added to the network to ensure connectivity between health facilities and population aggregation locations