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Useful Data - Highways road types

Highway Maintenance Code of Good Practice recommendation (group according to importance then define levels of maintenance for each group):

Hierarchy	Standard Road Classification System	Local Government Code of Practice Road Classification
Group 1	A, B some C and Unclassified roads	Class 2 Strategic Routes Class 3a Main Distributors Class 3b Secondary Distributors
Group 2	C roads and some Unclassified roads	Class 4a Local Interconnecting Roads
Group 3	Some C roads and Unclassified roads	Class 4b Local Access Roads

Road Network Hierarchy

Classifications: A, B, C and UC

ST_REF_TYPE	ST_DESC	Example	Notes
1	DESIGNATED STREET NAME	High Street
2	STREET DESCRIPTION	Track from Farm to Road	Can only exist if there is no Type 1
3	STREET NUMBER	A5, B102, C123	Classified road. If type 3 exists, there must be a type 1 or type 2. Only types 3 and 4 have ESUs.
4	UNOFFICIAL STREET NAME	Lover's Lane	Colloquial used name. Only types 3 and 4 have ESUs.

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