Line T3 will share a 3.3km section of Line T2 between Airport Terminal 2 and Digue de Français, where it will diverge onto a new 3.7km branch to reach the Allianz Riviera stadium and Saint Isidore.

The option is from an initial €91m contract for 19 Citadis X05 vehicles and SRS chargers for Line T2, which was awarded in October 2015.