Type A map of Areas exposed to noise (Day-Soirée-Nnight) for the road network of Côte-d’Or

These maps also referred to as “type A maps” represent for the year 2017 in the form of isophone curves, the areas exposed to more than 55 dB(A) according to the Lden indicator, with a step of 5 in 5 dB(A). They concern the road network of Côte-d’Or. Lden: sound level indicator means Level Day-Evening-Night. It corresponds to an equivalent 24-hour sound level in which evening and night noise levels are increased by 5 and 10 dB(A), respectively, to reflect greater discomfort during these periods.