On 18 July 2010, a stretch of the A40 between Dortmund and Duisburg was closed for the Ruhr.2010 European Capital of Culture project "Still-Leben" ("Still Life"). As part of that event, several hundred thousand people gathered at Kreuz Kaiserberg to celebrate Ruhr.2010. In the centre of the intersection was an installation by German-based American artist Rita McBride modelled on the Delicate Arch in Utah, USA. The gathering has been described as "the most beautiful traffic jam Kreuz Kaiserberg has ever had". It was the first time since 1973 that pedestrians had been permitted to roam the interchange without being endangered by traffic.