The URBA mass transport system in France was a suspended monorail design that used suction to lift the train off its rail. It was designed by the Compagnie d'Energetique Lineaire mb. At least two prototypes were built in Lyon in 1968 and tested on a 79-metre track at a speed of .
The URBA mass transport system in France, a suspended monorail design utilizing suction to lift trains off the rails, was developed by Compagnie d'Energetique Lineaire mb. Two prototypes were constructed in Lyon in 1968 and tested on a 79-meter track at a speed of .