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