Tag:outlet=noise_barrier
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 outlet = noise_barrier
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| Description |
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A flexible curtain is installed on a duct outlet as to prevent heavy sound related to fluid flowing to disturb neighbourhood. 
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| Group: man made |
| Used on these elements |
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| Useful combination |
Status: approved
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| Tools for this tag |
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A special equipment, often a flexible curtain is installed at the duct outlet as to prevent heavy sound when fluid is flowing to disturb neighbourhood.
It is often found next to hydro power stations, preventing turbine noises coming out through the tail race canals.
It can be combined with man_made=outfall sometimes.
Examples
Culverts or tunnels
| Photo | Location | Tagging | Comments |
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Switzerland | This big curtain is flexible and adapts to the outflow water level as for preventing noise coming from a hydroelectric power plant to get out the tunnel. |