Regionálna doprava v okresoch Tuttlingen, Rottweil a Schwarzwald Baar je prevádzkovaná súkromnou železničnou spoločnosťou Hohenzollerische Landesbahn s jednotkou firmy Stadler.
The Regional transport in the districts of Tuttlingen, Rottweil and Schwarzwald Baar operates the private railway company Hohenzollerische Landesbahn with RS 1 railcars from Stadler. There is a clock schedule driven and at times with many passengers, the trains are intensified. The railcar RS 1 250 number is at Zollhaus go to Villingen.