SYLVIE wants to reduce the noise. For a selected city area in Vienna SYLVIE will achieve a clear reduction of the noise pollution and noise disturbance. SYLVIE wants to support the participants to recognise and use existing action clearance. SYLVIE wants to cause active acting. This presupposes both a comprehensive aspect to pro and cons of urban living together and an innovative methodical beginning for project completion. SYLVIE wants to initiate and accompany co-operation. Noise reduction in urban populated areas requires extensive and systematic co-operation, in order to achieve the necessary changes of behaviour and measures.