A transition to fully automated services was done without major interruption to passenger traffic. The new MP 05 rolling stock was able to operate efficiently alongside the manually-driven MP 89 CC rolling stock until there were enough MP 05 to no longer facilitate the need of the MP 89. Full automation was achieved for evening services in May 2012, with an increase to weekend services by August 2012. As of 15 December 2012, Line 1 is 100% automated with only a few MP 89 CC trains being used during rush hours when needed. The remaining 5 trains will remain stored on Line 1 near the Fontenay workshops until a new garage for Line 4 is opened south of the new Mairie de Montrouge station in February 2013.