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USRN

5.3.6.1

Each Street must be allocated a USRN and be maintained in accordance with the principles set out in Appendix G.

5.3.6.2

In a two-tier District Council and County Council government structure, the Local Highway Authority function is in the County Council.  In a one tier Unitary Council structure, the responsibility is that of the Unitary Council.  The Local Highway Authority is responsible for the creation and maintenance of the LSG under statute.  

5.3.6.3

The Authority Address Custodian and the Authority Street Custodian should have an information exchange process in place.  This helps to ensure that information on additions or changes to the type 1, 2, 3 and 4 Street Records generated by the LLPG is transferred to the NSG via the LSG.  In a two-tier authority administrative area the District Councils should work together to ensure a consistent approach within a Local Highway Authority.

5.3.6.4

For details of the following see Appendix B:

  • Each Local Highway Authority in England and Wales.
  • Each SNN Authority.
  • The USRN range prefixes.

5.3.6.5

Within each Local Highway Authority the Authority Street Custodian should liaise with and obtain Street related change information from one or more of the following sources:

  • Each District Council.
  • Highways England.
  • Welsh Trunk Road Agencies.
  • Transport for London.
  • Network Rail.
  • Ministry of Defence.
  • Royal Parks.
  • Private Street Managers. 

5.3.6.6

Each type of DCA Participating Authority (District, Unitary and County Council) is assigned a range of USRNs which must be used for each Street in their own administrative area.  A USRN is a persistent unique integer value taken in sequence from this range.  For more information see Appendix B.

5.3.6.7

Each Street Record in an LSG must have a USRN within the range allocated to the SNN Authority for that administrative area.  There are two exceptions to this rule:

  • If the Local Highway Authority is different from the SNN Authority, then a separate USRN range is allocated for type 3 Street Records.
  • If Streets are exchanged between authorities due to administrative boundary changes, the Streets must be removed from the previous SNN Authority ASG and transferred to the new SNN Authority ASG.  The original USRN must be retained.  This process must be undertaken in conjunction with GeoPlace. 

5.3.6.8

If a Street with a PRoW obligation is added to an LSG, the USRN is allocated by the Authority Street Custodian using the range allocated to the SNN Authority. 

5.3.6.9

For this purpose, in a two-tier District and County Council government structure, the SNN Authority should provide the Authority Street Custodian with a range of USRNs.

5.3.6.10

In a District Council, USRNs can be:

  • Obtained from the Authority Street Custodian at the County Council from their type 3 Street range.  This helps to ensure synchronicity between the ASG used in the LLPG and the LSG.
  • Allocated by the Authority Address Custodian if both of the following are in place:
    • An agreed service level agreement or local working arrangement between all of the Authorities within a County Council, whereby the Authority Address Custodian is informed of the County Council type 3 Street USRN range which should be used.
    • A robust process to ensure information is exchanged effectively.

5.3.6.11

If it is proposed to change the USRN for a length of Street, the Authority Address Custodian must consult their Authority Street Custodian before making any changes.  This is because the Authority Street Custodian has a statutory duty to consult with other organisations which have an interest in lengths of a Street. The interest is recorded in the Additional Street Data (ASD) of the NSG against the USRN of that Street.  The Authority Street Custodian must consult:

  • Highways England.
  • Network Rail.
  • Neighbouring Local Highway Authorities who have an interest Record in that Street.
  • Various regional bodies.

5.3.6.12

Changes which must be consulted upon include:

  • Splitting a USRN into two or more USRNs.
  • Combining two or more USRNs into a single USRN.
  • Moving a section of Street from one USRN to another USRN.

5.3.6.13

When an Authority Address Custodian proposes any of these changes they must inform the Authority Street Custodian of the proposed change and ask if a consultation is needed before the change is made.  

5.3.6.14

If any organisation has submitted an ASD Record against any USRN affected, then a consultation is necessary and the Authority Street Custodian must inform the Authority Address Custodian that the consultation is needed.  When the consultation is complete, the Authority Street Custodian must inform the Authority Address Custodian so any changes are made in both the LLPG and LSG at the same time.

5.3.6.15

Street Name changes to a Street shall not result in a new USRN.  All Street Name changes, such as a result of SNN legislation, a change from a type 1 to a type 2 Street or a spelling correction shall be recorded as an amendment to the existing USRN. 

5.3.6.16

If a Street Name is officially changed and the former Street Name continues to be used locally, it can be entered as a type 4 Street in the LSG or ASG.  Historical Streets should not be entered as a matter of course and should only be created as  type 4 Streets if there is a need to keep a local reference when a Street changes (during a transition period.)  

5.3.6.17

All type 4 Streets must be open whilst they are active and locally known by that name.  Type 4 Streets should be reviewed and when it is deemed that the Street is no longer known by, or referred to by, that colloquial name, it should be closed.  Only Alternative LPIs or Historical LPIs can be linked to type 4 Streets.

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