Topographical bollards

Topographic terminals on the primary network for the attachment of surveys

To ensure better accuracy on the surveys (creation of a plan or a map from information collected in the field), the Departmental Council financed the implementation of topographic terminals spread over the department (Departmental canvas attached to the reference systems in planimetry to RGF93 and altimetry to the IGN69 network).

Fourteen pillars spaced 3 km apart have been positioned on the territory of Hauts-de-Seine.

Special comments

Perennial data. The implantation of these terminals was carried out in order to have a standardization of the topographical surveys.