data download service (WFS) from: Strategic Noise Map Type A Lden — Colmar
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Strategic noise map of type A Lden — Isophone curves in areas exposed to noise. These curves show areas of the same sound level and are plotted by 5 dB(A) steps from the threshold of 55 dB(A) in Lden. C_68066_AV_CLEMENCEAU_CarteA_Lden_Values_Class_Noise c_68066_noise_routes_affected_Labels C_68066_AV_FRIBOURG_CarteA_Lden_Values_Class_Noise c_68066_noise_routes_affected C_68066_RUE_DU_PONT_ROUGE_CarteA_Lden_Values_Class_Noise C_68066_AV_POINCARE_CarteA_Lden_Values_Class_Noise C_68066_RUE_DU_NORD_CarteA_Lden_Values_Class_Noise
A型昼夜间等效声级（Lden）战略噪声地图——受噪声影响区域的等声线曲线。此类曲线用于标示声级一致的区域，以5dB(A)为步长，从Lden标准下的55dB(A)阈值起绘制。 C_68066_AV_CLEMENCEAU_CarteA_Lden_Values_Class_Noise c_68066_noise_routes_affected_Labels C_68066_AV_FRIBOURG_CarteA_Lden_Values_Class_Noise c_68066_noise_routes_affected C_68066_RUE_DU_PONT_ROUGE_CarteA_Lden_Values_Class_Noise C_68066_AV_POINCARE_CarteA_Lden_Values_Class_Noise C_68066_RUE_DU_NORD_CarteA_Lden_Values_Class_Noise
