The German website STERN.DE has an article about Safe Road Maps entitled "Unfallkarte: Straßen des Blutes." The title in English means "Accident map: Streets of Blood."

"The digital equivalent of the many tragic memorials on German roads and highways is available online at www.saferoadmaps.org to find a virtual road map of fatal traffic accidents and the idea of Thomas Horan and Lee Munnich of the University of Minnesota," according to the Web piece. It includes nine photos of crosses on German roads where fatal crashes have occurred.

You can get a reasonable translation of the German text using Google Translate.