Aramis.

About Aramis

The Aramis was an experimental personal rapid transit (PRT) system developed in France for deployment in the Paris area. Aramis included the unique feature of non-mechanical platooning that allowed the small cars to run as virtual trains in areas of higher transit density. This would allow the system to maintain high throughput in busy areas, with the trains breaking up into individual cars and going their separate ways as they approached their destination. In spite of considerable development, the platooning system was never made to work properly, and the cars tended to bump and jar in testing. The project was eventually shut down in November 1987, its place taken by the conventional Véhicule Automatique Léger system developed through the same period.