Topographical maps of parks and gardens

Topographical maps of the parks, gardens and promenades of the department

The Hauts-de-Seine Department is responsible for the preservation and enhancement of an important plant heritage consisting of parks, gardens and walks. As part of this mission, it updates topographical plans, which constitute a reference basis for knowing precisely the heritage and sizing maintenance work.

The plans are mainly updated as part of annual topographical surveys, depending on the acquisition, extension or development work carried out. Some graphic content, and in particular buried networks (which are not visible), have been included in the plans for information purposes, without any guarantee of location.

Lexico

Topographical map: Graphic representation of a plot of land with all its characteristics: buildings, roads, networks, street furniture and all other remarkable elements. This plan is the result of measurements carried out in the field: topographic surveys. This plan is usually carried out on a scale close to 1/200 th and established in a three-dimensional geographical coordinate system (X, Y, Z). Depending on the size of the area surveyed, the plan may be linked to a local system or national reference systems.

Special comments

All the proposed topographic plans are attached in planimetry to the national coordinate reference system: the French Geodesic Network (RGF93) associated with the CC49 compliant conical projection and attached in altimetry to the normal altitude system IGN 1969.

To meet the challenge of sharing and exchanging topographic and geographical information within the various directorates and departments of the Department, a common nomenclature (.pdf file in PJ) has been implemented to share a structure of data understandable by all. This document is essential for an understanding and use of the plans.

Information on the details of the graphic entities collected in the field is given in this document entitled: "Nomenclature and classes of precision".