Anti-noise facility for tracked transport road and tracked transport road provided with such a facility

Abstract

The invention relates to anti-noise installation for a guided transport track having a U-shaped cross section, the two branches of which form the lateral walls ( 15, 16 ) of the track and the central zone of which, connecting the two branches, forms at least one runway ( 18 ) for a guided transport vehicle ( 50 ), characterised in that said installation comprises a plurality of acoustic panels ( 30, 31, 34, 35, 38, 39 ) arranged relative to one another so as to form at least one chamber ( 20 ) for confining the noise resulting from the passage of a vehicle ( 50 ) over at least one runway ( 18 ), which chamber can be provided around said noise source while extending as far as a free end of at least one branch of the U, each panel ( 30, 31, 34, 35, 38, 39 ) forming at least one portion of a partition of a noise-confinement chamber ( 20 ).

1 . An anti-noise installation for a guided transport track having a U-shaped cross section forming a U, two branches of the U of which form lateral walls of the track and a central zone, connects the two branches and forms at least one runway for a guided transport vehicle the installation comprising:
 plurality of acoustic panels arranged relative to one another so as to form at least one chamber for confining a source of noise resulting from passage of a vehicle on at least one runway, said chamber provided around said noise source while extending as far as a free end of at least one of the branches of the U, each acoustic panel forming at least one portion of a partition of a noise-confinement chamber.   
     
     
         2 . The anti-noise installation according to  claim 1 , wherein at least one acoustic panel is a cap mounted on free end of at least one of the branches of the U, in parallel with each runway, extending in the direction of the branch of the U facing the branch on which it is mounted, so as to form a top partition of a noise-confinement chamber. 
     
     
         3 . The anti-noise installation according to  claim 1 , wherein at least one acoustic panel is a skirt carried by said vehicle perpendicularly to each runway, and wherein at least one acoustic panel is a bottom screen mounted on a runway facing said skirt, so as form a lateral partitions of at least one noise confinement chamber. 
     
     
         4 . The anti-noise installation according to  claim 1 , wherein at least one acoustic panel is a lateral panel mounted in a vicinity of a lateral wall of the track, perpendicularly to each runway, so as to form a lateral partition of at least one noise-confinement chamber. 
     
     
         5 . The anti-noise installation according to  claim 1 , wherein at least one acoustic panel is a lateral mat attached to the lateral wall of the track, forming a U-shaped branch, so as to form a lateral partition of at least one noise-confinement chamber. 
     
     
         6 . The anti-noise installation according to  claim 1 , wherein at least one acoustic panel is an absorbent slab ( 34   a,    34   b,    34   c ), suitable for being attached to a runway ( 17 ,  18 ) so as to form a bottom partition of at least one noise-confinement chamber ( 20 ). 
     
     
         7 . The anti-noise installation according to  claim 1 , wherein said acoustic panels are arranged to form at least one noise-confinement chamber compatible with said guided transport track on which the installation is mounted. 
     
     
         8 . The anti-noise installation according to  claim 1 , wherein said acoustic panels are removably attached to one another. 
     
     
         9 . The anti-noise installation according to  claim 2 , wherein said acoustic panels are arranged relative to one another so as to form at least two noise-confinement chambers provided in series between the noise source and a free end of at least one branch of the U. 
     
     
         10 . The anti-noise installation according to  claim 1  wherein comprises at least one acoustic panel comprises a central panel attached to the track between two runways of the guided transport track while extending perpendicularly to the two runways so as to form a lateral partition of at least one noise-confinement chamber. 
     
     
         11 . The anti-noise installation according to  claim 1 , wherein each acoustic panel is either an absorbent panel or a blocking panel. 
     
     
         12 . The anti-noise installation according to  claim 11 , wherein at least one absorbent panel is formed of a material selected from the group consisting of porous concrete, timber concrete, rubber concrete, rockwool, glass wool, steel, PVC, and EPDM. 
     
     
         13 . A guided transport track having a cross section in the form of a splayed U, two branches of which form lateral walls of the track and a central zone of which, connecting the two branches, forms a runway for a guided transport vehicle, wherein the track comprises an anti-noise installation comprising:
 a plurality of acoustic panels arranged relative to one another so as to form at least one chamber for confining a source of noise resulting from the passage of a vehicle on at least one runway, said chamber provided around said noise source while extending as far as a free end of at least one of the branches of the U, each acoustic panel forming at least one portion of a partition of a noise-confinement chamber.