 This section was the basis for the later electrification of the former "Albus" line 20.Also, until September 2006 the Gaswerkgasse / Ignaz-Harrer-Strasse intersection, and the Hauptbahnhof area around the Forum-Kaufhaus/Fanny-von-Lehnert-Straße, were provided with additional turning and reversing capabilities.Likewise, since the spring of 2007 a non-revenue section has been in operation from the Landeskrankenhaus (line 7) to Willibald-Hauthaler-Straße (Line 4), and an additional turning space has been provided at the Makartplatz, in front of the Holy Trinity Church.