DSI - Special Plans of Construction - Expropriation plan, contour

This dataset contains the digital vector version of all contours of expropriation plans associated with special plans of construction. Each plan is defined by its contour. This outline concerns the geometric enveloping of all the containing layers of the plan. It has been conceptually decided to draw a buffer around any line elements that do not occur within a base plane in order to allow them to be included within the enveloping contour. At this plan contour layer, the administrative data of the plan are included in the attributes.