Topographical terminals on the primary network for connection of readings
* * *
In order to ensure better accuracy on surveys (creation of a plan or map based on information collected in the field), the Departmental Council financed the implementation of topographical terminals spread over the department (Departmental canvas attached in the reference systems in planimetry to RGF93 and altimetry to the IGN69 network).
Fourteen terminals spaced 3 km have thus been positioned on the territory of Hauts-de-Seine.
**Special observations**
Perennial data. The implantation of these terminals was carried out in order to have a uniformity of the topographical surveys.
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