It is one of Budapest's transport attractions located between the 2nd and 12th districts, most notable for that the service is provided by children under the supervision of adults.
The former name of the line was Úttörővasút (Pioneer Railway, in reference to the communist scouts), and now the official designation is MÁV Zrt.
The trains cover the distance between the two terminals at a maximum permitted speed of 20 km/h in an average of 40-45 minutes (approx.
The free and playful employment of children before the opening of the then called Pioneer Railway caused controversy amongst people.
For the railway construction several sites were considered, including the neighbourhood of the Gödöllő Palace, Margaret Island, and the Népliget, but finally in 1948 the Hungarian Communist Party chose the Buda Hills.