Study identifying and prioritizing road traffic parameters that most strongly influence linear acoustic power levels and noise exposure using the European regulatory method CNOSSOS-FR in the Hauts-de-Seine department. Sensitivity calculations applied to 25 of 36 municipalities using E5 parameters, with population exposure counted using the median method. Analysis examines hourly traffic composition, pavement data from Renault sensors collected June 2024 to May 2026, and average speed data from departmental and national sources.

Presentation on the Nord2000 noise model used in Sweden for road traffic noise mapping. Nord2000 uses five vehicle categories described by weight and number of axles, with 1/3 octave band frequency resolution from 25 to 10000 Hz. Two sources per vehicle category represent rolling and propulsion mechanisms. The model includes surface corrections based on Swedish CPX measurements, horizontal and vertical directivity patterns, and methods for deriving source sound power levels from field measurements using the propagation model with assumed omnidirectional sources.

Presentation comparing results of Switzerland’s NExUS study on electric vehicles and internal combustion engine vehicles with RD-ASEP Sound Expectation Model predictions. NExUS study objective was to compare EVs with ICE vehicles of the same consumer segment to better understand EV modelling. Key findings show overall sound levels of EVs and modern ICEs are close under constant speed, while ICE sound is higher under low-speed acceleration. RD-ASEP SEM predictions align closely with NExUS measurements for both accelerated and constant speed conditions.