DSi — Special Plans of Construction — Contours

This dataset contains the digital vector version of all the contours of the special plans of construction. Each plan is defined by its contour. This contour concerns the geometric enveloping of all containing layers of the plan. It has been conceptually decided to draw a buffer around any line elements that do not occur within a ground plane to allow it to be absorbed within the enveloping contour. This plan contour layer includes the administrative data of the plan in the attributes. The contours are available in this dataset insofar as they have already been charged by the relevant local authority, which owns the data and is responsible for the content.