S-Bahn

thumb|Diagram comparing typical rapid transit (U-Bahn, left) and S-Bahn (right) networks. The S-Bahn combines suburban branches into a high-frequency corridor across the city centre. Actual layouts vary by city. S-Bahn ( , ; ) is a type of hybrid commuter rail and rapid transit service, originating in German-speaking countries. In general, S-Bahn systems link suburbs with the city centre at moderate speeds, while continuing across the urban core over a central high-frequency corridor where multiple lines converge, where they provide a rapid means of travel across the city. The name S-Bahn deri