Dataset Direct Download Service (WFS): Sector affected by noise — taken over on a large scale — Hautes-Pyrénées

The prefectural sound classification decree defines the width of the sectors affected by noise, depending on the classification of the railway or road. Tracks are classified into 5 categories (1 being considered the noisest sum, and 5 least noisy). The noise-affected sector derives from this classification, within which building rules apply. The original representation of the sound classification and the sectors affected by noise, provided by the service responsible for the theme, is based on the road theme of the BD-Carto. This version, although in accordance with the relevant regulations, could in some cases suffer from lags for use on a parcel background in particular. Therefore, a representation compatible with large-scale use has been generated, based on the road and rail themes of the BD-Topo V2.