Tren al Desarrollo (in English: "Train to Development") is an elevated commuter rail service between the cities of Santiago del Estero (from the "Forum" station) and La Banda (with also a new building) in Santiago del Estero Province.

Trains run on a 1,000 mm (3 ft 3+3⁄8 in) metre gauge track on a viaduct generally following the former Mitre Railway alignment.

The line also crosses the Puente Negro, a bridge that had been closed for over 40 years.

[7] The route has a total of four stations, with three of them having been specially built for the occasion, Forum (terminus), Botánico (with access to the botanical garden and Estadio Único Madre de Ciudades), and Nodo Tecnológico (in the industrial park of the city).

[8] The total path from Forum to Banda stations is a 5,10 metre-high viaduct to avoid interfering with road traffic.