Speaker
Description
Road traffic noise is significantly influenced by road surface properties, in particular by the surface type and its condition. The noise generated at the tyre–road interface is commonly assessed using the Close Proximity (CPX) method according to ISO 11819-2, which enables direct source related measurements.This contribution addresses long term monitoring of the noise emission of different road surface types in the Czech Republic, with a strong international relevance. At the national level, a new road surface noise classification system (TP 270) is being introduced in connection with the implementation of the CNOSSOS EU calculation methodology for road surface noise. The system enables detailed assessment of the acoustic condition of road surfaces, tracking of acoustic degradation over time and optimization of road design and maintenance aimed at reducing traffic noise exposure. Long term results confirm consistency with international datasets, providing a reliable basis for the assessment and prediction of road surface noise within the EU.