New Zealand Data - Page 9

The source data exists in order to provide linear geometries against which official railway names can be recorded and to provide contextual data for Landonline users.

A railway centreline in this layer will typically consist of a centreline wholly contained with a parcel(s) with an intent of "railway"

The railway centrelines do not represent actual railway formation but the presence, and general location of a gazetted railway for contextual uses.

The Topo250 map series provides topographic mapping for the New Zealand mainland, the Chatham Islands at 1:250,000 scale.

Along with the paper-based Topo250 map series, digital images of the maps are also publicly available.

Georeferenced raster digital images are provided at a resolution of 300 DPI. Georeferencing allows adjacent maps to be accurately and automatically aligned within GIS systems.

For more information, and a description of the georeferencing keys:
www.linz.govt.nz/topography/topo-maps/topo250/digi...

In addition to contour lines, relief shading helps visualise the terrain. Hills and valleys are shaded as if they were illuminated from the north-west.

Relief layers were generated for each sheet, and specifically for use in the Topo250 map series. There may be subtle differences in the relief shading of adjacent map sheets.

The Topo250 map series provides topographic mapping for the New Zealand mainland and Chatham Islands, at 1:250,000 scale.

Further information on Topo250: www.linz.govt.nz/topography/topo-maps/topo250

As of June 2017, this dataset has been replaced by NZ Roads Subsections (Addressing) and will no longer be updated. See NZ Roads Data Dictionary for field mappings to the new dataset.

This layer provides a feature representing Electoral road subsection (e.g. a city block) to which associated data such electoral addresses can be attached.

In Landonline a road name is commonly assigned to multiple stretches of roading such as between intersections with other roads. For this layer each of these individual road sections have their own geometry (as opposed to the Road Centre Line Layer where they have been aggregated).

A road may also have more than one road name, some road centreline geometries will duplicate other roads subsections even though there is in reality only one road formation. In addition, a road name is also commonly duplicated across the country e.g. "Queen Street", "High street" etc

The source Landonline data exists in order to provide linear geometries against which official road names and street addresses can be recorded. Its purpose is also to enable automated meshblock address reports (for electoral and statistical purposes) so as to identify the presence of a road name in meshblocks where street addresses do not exist.

The road centrelines recorded in Landonline do not represent actual road formation, nor do they represent legal access. They must not be considered as topographic, cadastral, or legal.

As a general rule those that are not within a Road Parcels Layer should be treated as being of highly variable accuracy. They do however meet the purposes for which they have been captured, and can provide a valuable resource for other purposes provided that the user(s) understand their origin and consequential limitations.

Warning: The purpose of the location field is to enable differentiation between roads of the same name in the dataset. It should not be considered official nor part of a valid postal address. It can however be used as an indicative guide to location within a Territorial Authority, or in the case of regional road networks, as an indicative guide to location within New Zealand.

A barrier constructed across a watercourse to control the flow or raise the level of water

Data Dictionary for dam_cl: apps.linz.govt.nz/topo-data-dictionary/index.aspx?...

This layer is a component of the Topo500 data. The Topo500 map series will, when it is created, provide updated topographic mapping for the New Zealand mainland at 1:500,000 scale.

The NZGD2000 Meridional Circuit Boundaries as defined by LINZ. The Rules for Cadastral Survey require surveyors to carry out surveys in terms of one of 28 Transverse Mercator meridional circuits.

The cos_id contained within this data is a reference to the Landonline coordinate system identifier For more information see crs_coordinate_system in the Landonline BDE data dictionary documentation

Original data sourced from here

As of June 2017, this dataset has been replaced by the NZ Roads (Addressing) and NZ Roads Subsections (Addressing) datasets and will no longer be updates. See NZ Roads Data Dictionary for field mappings to the new dataset.

This source Landonline data exists in order to provide linear geometries against which official road names and street addresses can be recorded. Its purpose is also to enable automated meshblock address reports (for electoral and statistical purposes) so as to identify the presence of a road name in meshblocks where street addresses do not exist.

A road centreline in this layer will typically consist of several road centreline geometries from Landonline that have been associated to the same road name.
In Landonline a road name is commonly assigned to multiple stretches of roading such as between intersections with other roads. A road name is also commonly duplicated across the country e.g. "Queen Street", "High street" etc.

For this layer (as opposed to the Road Subsections Layer. Individual road sections have been aggregated to a single road centreline geometry for each locality. Thus, for example, State Highway 1 has individual sections for differing towns and whenever it crosses a Territorial Authority boundary.

Because some roads have multiple names for part of their lengths, some road centreline geometries will duplicate parts of other roads even though there is in reality only one road formation.

The road centrelines recorded in Landonline do not represent actual road formation, nor do they represent legal access. They must not be considered as topographic, cadastral, or legal.

As a general rule those that are not within a Road Parcels Layer should be treated as being of highly variable accuracy. They do however meet the purposes for which they have been captured, and can provide a valuable resource for other purposes provided that the user(s) understand their origin and consequential limitations.

Warning:
The purpose of the location field is to enable differentiation between roads of the same name in the dataset. It should not be considered official nor part of a valid postal address. It can however be used as an indicative guide to location within a Territorial Authority, or in the case of regional road networks, as an indicative guide to location within New Zealand.

This layer provides cadastral Survey Capture Areas (SCA).

In conjunction with the implementation of Landonline in each region, LINZ undertook a project to "back-capture" existing parcel boundaries in the main centres of population and land development. It was intended to "back-capture" approximately 70 percent of existing parcels, which equates to about 20 percent of the land area of New Zealand.

The data capture known as "Populate Electronic Parcel" (PEP) was undertaken under contract by EDS.

The areas to be captured known as "Survey Capture Areas" (SCA) were defined in consultation with local LINZ staff, survey practitioners and Local Authorities.

Within the defined SCAs, the dimensions for surveyed right-lined boundaries of current parcels were captured from existing survey plans. In addition, sufficient traverses, boundary ties, and connections to the geodetic control were captured or surveyed to ensure adequate network geometry and strengthen areas where the boundary dimensions are unreliable. This survey network was adjusted to generate modern survey coordinates for all relevant nodes. Where the resulting boundaries comply with the accuracy requirements of the 1998 Survey Regulations, then the adjusted co-ordinates were declared to have SDC (Survey-accurate Digital Cadastre) status.

For more information see here

New Zealand Exclusive Economic Zone

The exclusive economic zone (EEZ) is a zone extending from the outer limits of the territorial sea to a distance of 200 nautical miles from the baselines of the territorial sea in which New Zealand, as the coastal state, has sovereign rights over the living and non living resources of the sea and seabed and other states have certain freedoms, including the freedoms of navigation and overflight.

Maritime Boundary Definitions:
www.linz.govt.nz/hydro/nautical-info/maritime-boun...

Further References:
www.linz.govt.nz/hydro/nautical-info/maritime-boun...

New Zealand Contiguous Zone

The contiguous zone is a zone of 12 nautical miles beyond the territorial sea in which New Zealand, as the coastal state, may take action to prevent or punish any infringement of its customs, fiscal, immigration or sanitary laws or regulations applicable within its land territory or territorial sea.

Maritime Boundary Definitions:
www.linz.govt.nz/hydro/nautical-info/maritime-boun...

Further References:
www.linz.govt.nz/hydro/nautical-info/maritime-boun...