Rail noise zone for Type A maps indicator Ln for the 3 rd deadline in Maine-et-Loire(49)

Aggregation of generic tables describing the Noise Zones, for an infrastructure, type of infrastructure concerned FER (F), type A map according to indicator Ln (night). This map is a graphic representation that locates areas exposed to noise using isophone curves ranging from 50 dB to 70 dB and more, by step of 5 dB. Map to be made under the CBS under Articles R.571-37 and R.571-38 of the Environmental Code. Aggregation obtained by the QGIS MIZOGEO plugin made available by CEREMA.