All the countries of the European Union consider noise as the most widespread form of environmental pollution, mainly in consequence of road traffic. It has been estimated that 80 million inhabitants in western Europe endure traffic noise that scientists and health experts consider to be unacceptable. The most promising solution for the urban or extra-urban areas is the development of road pavement types able to control rolling noise as well as noise generated by the major sources of trucks at medium and low speed and of cars at stop-and-go driving conditions, and they are more located in the low frequency range.