Dataset Direct Download Service (WFS): Strategic Map of Road Infrastructure Noise: type C Lden

The strategic noise maps (CBS) are derived from the European Directive 2002/49/EC on the assessment and management of environmental noise. They are intended to inform the public about the levels of exposure to noise through graphic representations. In accordance with article R572-5 of the Environmental Code, the CBS include maps of areas where the noise level exceeds 62 dB(A) in Ln (level night, night indicator from 22h to 6h). They are called ‘C-type card’. Limit values in dB(A) are defined by article L572-6 of the Environmental Code. The CBS of the major road infrastructure, whose annual traffic is more than 3 million vehicles, with a deadline for the Val-d’Oise, were approved by prefectural decree of 5 December 2018. They must be reassessed every 5 years.