Dataset Direct Download Service (WFS): Urban envelope of built plots dedicated to housing in 1980 on Les Deux-Sèvres

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Dataset information

Country of origin
Updated
2019.04.04 00:00
Created
Available languages
French
Keywords
WFS 1.1.0
Quality scoring

Dataset description

Generally referred to as “urban task”, the urban envelope is defined as the area delimiting a set of parcels built on a given date. This urban envelope is a spatial reference for locating a boundary of construction according to different design criteria. These criteria can be adapted according to the definition assigned to this urban envelope (artificialisation, habitat area, area of activity, etc.). The urban envelope serves as a reference point to contribute to the assessment of space consumption in urban planning documents. This is a data to characterise the urban envelope of dwellings (house, apartment). This envelope was generated from the parcels identified in the land files as bearing at least one dwelling space and having a habitat rather than activity purpose. Some specific features of the spatial distribution of built-up areas are observed in more detail. These differences can be attributed to the land structure of agricultural areas (cultural typology, parcel geometry, cultural methods of setting up farms, etc.), to land-based urbanisation patterns depending on the territory or, on the contrary, to more intensified forms of this residential development (e.g. regulatory aspect of urban planning documents). In the department, these different forms of urban envelopes are identifiable. For example, in the Deux-Sèvres, the periphery of Parthenay is composed of a scattered set of habitat represented by an urban envelope in cloud of dots. Whereas in contrast, Niort’s periphery is marked by larger but more concentrated envelopes. This data specifies the number of parcels that make up each urban envelope. This allows, by simple processing, to select only the corresponding urban envelopes, those consisting of at least four units.
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