Noise affected

50% of Europeans are exposed to acoustic pressure above 55 dB due to traffic alone. Other sources of noise often add up to this level.
1 out of 4 Dutch adults have problems with excessive noise from traffic (26%). (Source: Nederlandse Stichting Geluidshinder 2004)
In France, it is estimated that 1 person out of 2 is suffering of traffic noise.
More than 80% of the Germans feel aggressed by noise. (Source: German Federal Environmental Agency, UBA)

(Quelle: The Building Performance Centre, Napier University, Edinburgh - 2004)

Traffic and people on the street in cities appear to be the most important sources of annoyance.