NationalMap Enhanced Roads Network, built on top of the NationalMap Formed Road Network, is a nationwide network specifically optimised for routing applications.

The following notes from the NationalMap Formed Road Network are also applicable here:

A formed road is land that has been set aside and prepared for vehicle traffic. The surface of the road may be sealed, or it may be rough (wheel tracks), but it must be accessible in all weather conditions by a standard, non-SUV, family-type vehicle.

All formed roads that are named (publicly or privately owned, formally or informally named) will be represented within the NationalMap road network.

The NationalMap Road Network follows the following basic principles:
1) It is a connected network. All segments in the dataset will perfectly connect with their neighbouring segments where, in the real world, a vehicle can drive between the road sections represented by the connecting segments.
2) It uses nationally consistent naming standards for all roads, a nationally consistent set of prefixes and suffixes, and nationally consistently applied abbreviations for such prefixes and suffixes.
3) It is composed entirely of lines or polylines. No other type of object is acceptable, including multipolylines.
4) It represents real world road features, such as roundabouts, dual carriageways, ramps and slip roads.

Technical Details
Layer ID 104577
Data type Vector linestring
Feature count 291032
Attributes LABEL_ONLY, ROADNAME, ROAD_CLASS, LEGALITY, SURFACE, HIERARCHY, AV_SPEED, ONEWAY_TXT, ONEWAY_NUM, SH_EXTRACT, SHNAME, UNIQUE_ID, ROAD_ID, SPEED, YSKA, ROUTINGSPD, LENGTH_M, TTIM_MIN_S, TTIM_MIN_A, NO_LANES, FORD, RESTRICTED, STATE_HWAY, TUNNEL, BUSONLY, TOLLROAD, R_HEIGHT, R_WEIGHT_A, R_WEIGHT_T, R_WIDTH, R_LENGTH, R_DESC, TLA_NAME, DATE_MOD
Services Vector Query API, Web Feature Service (WFS)
History
Added 7 Apr 2020
Last updated 6 Jul 2021
Revisions 12 - Browse all revisions
Current revision Imported on July 6, 2021 from Shapefile in NZGD2000 / New Zealand Transverse Mercator 2000.