Dataset Direct Download Service (WFS): Strategic noise map type C according to the Lden indicator (evening day-night) of the network in Loire-Atlantique

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Dataset information

Country of origin
Updated
2019.06.20 00:00
Created
Available languages
French
Keywords
WFS 1.1.0
Quality scoring
195

Dataset description

Type ‘c’ map showing the exceedance areas of the limit value defined for railway infrastructure in Ln, noise indicator in Lden, noise indicator during day-night-night period, 68 dB(A) — Decree of 11/12/2018. Noise zones are geometric elements of the strategic noise map. For type A maps (CBSTYPE), each noise zone is usually bounded by 2 isophone curves (Lden 55-60, 60-65, 65-70, 70-75 and Ln 50-55, 55-60, 60-65, 65-70) or shares the lower limit isophone curve (Lden >75, Ln > 70). For type C maps (CBSTYPE), each noise zone shall be bounded by the lower limit isophone curve (Lden > 68 or 73, Ln > 62 or 65).
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