Motorway A40 is one of the busiest highways of North Rhine Westfalia, if it is not the most used. After two years planning, from 14.09. to 30.09.2012, project "Wände Südost" was implemented. The project was focussed to transform 3.500 m of the boring grey acoustic barrier to a huge total artwork and a public open air gallery. Guest were 21 artists from all over the world to play the walls around STORP9 in Essen's southeastern district. The driving force behind Wände Südost were GIGO PROPAGANDA and Nils Andersch.