The asbl TTA or Tramway Touristique de l'Aisne (Aisne Tourist Tramway) is the official designation of the tourist use of a former rural vicinal tramway in Belgium.
The line is the oldest and longest tramway in Luxembourg, between Érezée and Dochamps. It is a 1,000 mm (3 ft 3 3⁄8 in) gauge line along the Aisne river.
The extension from Forge à la Plez and Dochamps towards Lamorménil was opened by Prince Laurent of Belgium on 21 June 2015.
Coordinates: 50°17′19.49″N 5°32′54.58″E / 50.2887472°N 5.5484944°E