The following page summarises the main characteristics of the network.
Purpose
To provide marks to enable users to connect to official vertical datums
Density
Across North Island, South Island, Stewart Island/Rakiura
Sufficient density along existing levelling routes to enable efficient connection to official vertical datums
Accuracy
Order: 1V (vertical only)
Tier: E (0.25 m)
Class: VI (0.01 m, 3x10-6m/m)
Class evaluation radius: 2 km
Mark characteristics
Precise levelling
Ideally included as part of another network
Location
Sited so that surveyors can easily and safely locate and occupy
Mark access
Physical access to collect conventional observations