Noise Mapping Data 

strategic noise map is designed to assess noise exposure in a given area, resulting from particular noise sources for major roadsmajor rail, major airports & agglomerations (Dublin and Cork). A noise map is a graphical representation of the noise in a particular area with different colours representing different noise levels in decibels [dB(A)]. 


How to access noise mapping data

The data represented here for download, and the information on EPA Maps, is largely based on 2017 traffic data for roads, rail, and airportsas well as for the agglomerations (Dublin & Cork)  

 You can see Noise GIS data for Round 3 (2017) on EPA Maps, under the Environment & Wellbeing - Noise, expand the Noise Group. 


  • Select the dataset you’re interested in using the slider button (e.g. Noise Round 3 Road – Day). It may take a minute to load (initially). 
  • Expand the Table of Contents on the left-hand side to view the legend. 
  • Query the data by single clicking on the area you’re interested in. 


You can see more information on how to use the EPA Maps geo tool in the application help guide. 


  1. A Noise data package of zipped ESRI shapefiles is available to download from the GeoPortal Get Data section, including metadata and layer symbology files. A Noise WMS (Web Mapping Service) is available to all. We currently support OGC WMS, WFS and ArcGIS REST services. 
  2. Noise data metadata has been published on ISDE Catalog and as Open Data. Irish Spatial Data Exchange (ISDE) – Find Data  


Learn more 

You can view more information on environmental noise at – Search option 

A number of technical advice and guidance notes have been developed by the EPA to assist with noise mapping and action planning.