Line D (Ligne D) is a line on the Lyon Metro with driverless trains with rubber tyres. It also known as MAGGALY (Métro Automatique à Grand Gabarit de l’Agglomération Lyonnaise). Line D commenced operation under human control on 4 September 1991, between Gorge-de-Loup and Grange-Blanche. It was extended to Gare de Vénissieux on 11 December 1992, when it switched to automatic (driverless) operation. On April 28, 1997, it was extended again to Gare de Vaise.
Being the deepest of the lines in Lyon, it was constructed mainly using boring machines and passes under both rivers, the Rhône and the Saône. At 12.5 kilometres (7.8 mi) long and serving 15 stations, it is also the longest metro line in Lyon.