Scrollen Sie nach unten, um den Beitrag auf Deutsch zu lesen /// Scroll down for reading the post in German Traffic is the main source of noise in cities. In Germany, for example, 60% of the population feels disturbed by road noise (see BUND). In Europe, 100 million people are exposed to road noise levels higher than Read more about Car-free cities: a new trend? /// Autofreie Städte: ein neuer Trend?[…]