Provided for by Article L571-10 of the Environmental Code and specified by Articles R157-32 to 43 of the same code, the sound classification cuts railway lines into homogeneous sections and affects them a category, represented by a figure between 1 and 5, all the higher the noise level at the edge of the infrastructure is assumed to be low.
Only overhead railway lines, i.e. which are not covered or in tunnels, are covered by the classification.
The table L_CLASSEMENT_SONORE_F_RATP_L_075 contains the linear lines of the railway sections classified by Prefectural Order No. 75-2019-10-03-003 of 3 October 2019 approving the sound classification of the RATP network of the Paris department and amending the prefectoral decree of 15 November 2000 on the sound classification of land transport infrastructure in the territory of Paris.
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