Proper way to assess noise levels for buildings

[ThomasWeiss]

I'm trying to compute noise levels for a set of receivers, some of them intended to capture the exposure of buildings - so I want to make sure that the reflection of the building's façade is excluded for these receivers specifically. I'm generating the RECEIVERS table manually, not using any of the provided Groovy scripts. I haven't found the right way to disable self-reflection for the building-related receivers.

• I've tried associating these receivers with their respective buildings by populating the BUILD_PK column, but this doesn't seem to work. If I duplicate the receivers so that some have a BUILD_PK and some don't, they get the same noise levels.
• I found this issue that mentions a minimalDistanceReflection parameter below which wall reflection would be ignored, but as far as I can tell, this hasn't been implemented yet.

Any help would be appreciated, thanks in advance!

[nicolas-f]

Hi,

Sorry for the delay.

You can remove 3 dB on the receivers level that are placed in front of the buildings in order to remove the contribution of the first reflection.

[ThomasWeiss]

Thanks, Nicolas for your answer! So is it correct that, today, the BUILD_PK column in RECEIVERS isn't used when computing noise levels?