10.1.1.1
The policy and conventions set out in Section 10.1.2 and Section 10.1.3 is for information only because the determination of town and locality associated with the naming of a Street is the responsibility of the District or Unitary Council as an SNN Authority. For a data flow diagram, see Appendix F. SNN Authorities have the statutory responsibility for Street Naming and Numbering (SNN).
10.1.1.2
When creating, cleansing and maintaining an LSG it is important to consider the geographic location of the Street. In most cases, Streets have a definitive start and end point and have Street name plates. Streets of this nature usually start and end at junctions.
10.1.1.3
In other cases, stretches of Highway continue for several miles with no break points or junctions. Streets of this nature can cross more than one parish or ward boundary.
10.1.1.4
The purpose of an LSG is to provide an unambiguous register of all Streets within the Local Highway Authority administrative area and accurately define the Streets with an appropriate geographic identifier.
10.1.1.5
Therefore, if a Street passes from one town into another, Street Data must be recorded in the LSG for each town that the Street passes through.
10.1.1.6
If a Street does not have a unique Street Descriptor without a value for Locality, a value must be recorded in the Locality Field. In all other cases the Locality Field must be left blank.
10.1.1.7
A Locality must be a local geographical name enough to make the Street unique (see Section 10.1.3). However, some gazetteers include the use of the locality Field for other reasons to support local service provision and local identity.
10.1.1.8
Where a Street crosses the boundary of one town or locality into another, it is necessary to split the Street to attach the appropriate town/locality name to each section of the Street.
10.1.1.9
This information allows the Authority Address Custodian to update their gazetteer with the appropriate address details.
10.1.1.10
Authority Street Custodians must liaise with the appropriate SNN Officer and / or Authority Address Custodian regarding these issues.