Timo Stammberger’s website has been updated today. It shows a new series ‘portrait’ and new tunnel works from Dortmund. Stammberger recently visited the Ruhrarea, Europe’s largest metropolitan area, consisting of cities like Dortmund, Bochum, Essen and others. This accumulation inhabits 5,3 million people and for them the public transport system plays an immense role in daily life. This ever growing system has interweaved itself deep into the cityscape. Yet few have seen it before like Stammberger did on his recent visit to the underground of Dortmund.