D1: The impact of different mobility scenarios of the future on traffic noise disturbances

The change in the composition of the vehicle fleet has a significant impact on noise emissions. On the basis of concrete emission measurements of conventionally and electrically driven vehicles, calculations for the acoustic emissions of these vehicles can be determined taking into account the proportion of different vehicle types. The effects of a changing ratio of combustion to electric vehicles can thus be predicted. The emission measurements and calculations provide a broad database as a basis for spectral calculations of sound emissions.
For purposes of legal issues, the assessment of traffic noise emissions was previously only based on values calculated using provided tables (overall level). Energetically averaged values are, however, only suitable for quantifying the actual concrete degree of annoyance of a noise situation. The annoyance of noise is not describable by the sound pressure level alone, as is common today. Psychoacoustic parameters such as loudness, sharpness, roughness, tonality, among others, are much more suitable. In this project, connections between traffic noise and perceptual psychoacoustic parameters are to be investigated. For this, the traffic noise of future traffic scenarios is forecasted and calculated. In addition, the sound transmission to interior spaces (e.g. residences) is modeled. Thus, in this project, the nuisance to local residents is taken into account. In order to enable better informed transport policy decisions, the links between traffic-related noise pollution and the economic costs are then discussed.

Doctoral Candidate: Omid Samani

First (Main-) Supervisor: Prof. Dr.-Ing. habil. Ercan Altinsoy

Second Supervisor: N.N.