I have recently made the Environmental Noise Regulations 2006, which give effect to EU Directive 2002/49/EC relating to the assessment and management of environmental noise. Environmental noise is defined in the Regulations as unwanted or harmful outdoor sound created by human activities, including noise emitted by means of transport, road traffic, rail traffic, air traffic, and from sites of industrial activity.
The Regulations require the preparation of strategic noise maps for areas and infrastructure falling within defined criteria, e.g. large agglomerations, and major roads, railways and airports. Based on the results of the mapping process, the Regulations require the preparation of noise action plans for each area concerned, with a view to preventing and reducing environmental noise, where necessary.
My Department is not aware of any further or imminent EU legislation in relation to traffic noise levels.