The London Noise Map

I’m often asked “what happened to the London Noise Map, as I found it so useful”.

I was the project manager for the London (Road Traffic) Noise Map which was published in 2004 – which seems a long time ago now.  Defra got us to do many presentations about the map and the reception was enthusiastic. But the maps have to be re-done every five years under the European Directive, so by now they have been re-done twice – in 2004 and in 2014.

The London Road Traffic Noise Map was done in far greater detail than required by the EU Directive, which only requires broad statistics on the number of people exposed to certain levels of noise  in ‘agglomerations’ and alongside major noise sources.

It seems that when the maps were re-done, it was decided not to publish the detailed maps, but only the statistics.  I am not sure whether these statistics can show whether areas are getting noisier or quieter, as there has been a significant growth in population over this time, and this will inevitably mean that number exposed to noise will increase even if the noise sources stay the same.

I am intending to do a bit of work on this and I hope to be able to report back.

I have even been asked if I have copies of the original map that I can supply.  I’m afraid that I can’t do this, as it is copyrighted by Defra, and in any case it is likely to be out of date.  I will look into how people might be able to produce maps of smaller ares of interest from recent data.

 

NoiseMap 5.2 Now released!

NoiseMap 5.2 was released to all licensed users on 18th January 2017!  If your maintenance is current, you will be able to upload this now, without paying any extra.

If your maintenance has lapsed, contact us now for special update offers, available for a limited period only.

It contains over 30 major enhancements on version 5.1.  These can be summarised as follows:

  • New results processor, including:
    •  calculation of sum/ difference of combined road, rail and site sources;
    • comparison with noise criteria based on multiple result sets (e.g. criteria for noise insulation);
  • Simultaneous loading of multiple results;
  • Importing receiver results from external file for use in results processing. e.g. as noise criteria;
  • Output of source contribution file for on-the-fly receiver calculations – useful for design of mitigation;
  • Improvements to import/export functionality;
  • Scaling of DXF import when not in metres;
  • Better handling of Activities in SiteNoise;
  • Negative track corrections in RailNoise;
  • Usability improvements, including
    • more hotkeys,
    • better error checking,
    • enhanced ‘Find’ function, more Scripting functions,
    •  improvements to information boxes,
    • Updated User Manuals and Example databases and context-sensitive help.

The new main features of NoiseMap 5.2 in more detail:

You can add, subtract and perform all sorts of advanced functions on your contour and receiver results, and then view and export the result.

For example, you can easily write a function to highlight locations qualifying for noise insulation.

You can also import receiver noise levels and use them as criteria for identifying locations that might exceed limit values.

To save you time, you can write a function and store it as a script file which can be easily imported to do complex analysis.

For our specialist users, we have improved the ability to import railway services covering any number of trains and railway tracks.

You can export calculations line-by-line to an external spreadsheet.  this can be used to check and improve mitigation, for example.

Many small improvements have been made ‘under the bonnet’, including testing with Windows 10 – Noisemap is compatible with every current version of Windows (and most historic versions too).

It is fully compatible with earlier versions of NoiseMap five. So when you upgrade, you need have no fear that your old models will stop working. Importing from NoiseMap 2000 Enterprise is still straightforward, too.

 

NoiseMap 5.2 available in Beta

NoiseMap 5.2 contains our advanced results processor. It is available as a Beta for our advanced users to trial. Please contact us for details if you are interested.

The new main features of NoiseMap 5.2

You can add, subtract and perform all sorts of advanced functions on your contour and receiver results, and then view and export the result.

For example, you can easily write a function to highlight locations qualifying for noise insulation.

You can also import receiver noise levels and use them as criteria for identifying locations that might exceed limit values.

To save you time, you can write a function and store it as a script file which can be easily imported to do complex analysis.

For our specialist users, we have improved the ability to import railway services covering any number of trains and railway tracks.

Many small improvements have been made ‘under the bonnet’, including testing with Windows 10 – Noisemap is compatible with every current version of Windows (and most historic versions too).

So when you upgrade, you need have no fear that your old models will stop working. Importing from NoiseMap 2000 Enterprise is still straightforward. and there is now improved exporting of line-by-line calculations to an external spreadsheet to let you check and improve mitigation, for example.

 

NoiseMap works with Windows 10

We have tested NoiseMap with Windows 10 and confirm that it passes with flying colours.

You should not need to make any changes to NoiseMap software as long as you are running a fairly recent version.   If you do encounter a problem, please report it to us with as much detail as you can, especially your licence (dongle) number,  the version number of NoiseMap and the operating system you are using.

Our User Forum is frequently updated with the latest Support, Hints and Tips – it is well worth keeping an eye on this.

We welcome your feedback for constructive suggestions and ideas.

Roger Tompsett

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