Donautalbahn
Tuttlingen station is connected to a total of eight stops within the City of Tuttlingen by "Ringzug" (“ring train”) services. This connects Tuttlingen station every hour on weekdays and every two hours on weekends over the Danube Valley Railway with Immendingen and from there via the Wutach Valley Railway ("Wutachtalbahn") with Geisingen-Leipferdingen. Some Ringzug services, especially on weekends, are extended from Leipferdingen to Blumberg. Ringzug services over the Gäu Railway run via Spaichingen to Rottweil and then usually every two hours as far as Bräunlingen.