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Table 6 OpenStreetMap road descriptions

From: Using a geographic information system to enhance patient access to point-of-care diagnostics in a limited-resource setting

Highway type OpenStreetMap description Estimated speed (MPH)
Trunk The most important roads in a country’s system that aren’t motorways 65
Primary The next most important roads in a country’s system. (Often link larger towns.) 55
Secondary The next most important roads in a country’s system. (Often link smaller towns and villages.) 45
Tertiary The next most important roads in a country’s system 30
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 25
Residential Roads which are primarily lined with and serve as an access to housing 25
Service For access roads to, or within an industrial estate, camp site, business park, car park etc 15
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 25
Road A road where the mapper is unable to ascertain the classification from the information available 35
Connector roads Roads added to the network to ensure connectivity between health facilities and population aggregation locations 35