S4 (Rhine-Main S-Bahn)


The S4 service of the S-Bahn Rhein-Main system bearing the KBS number 645.4

Routes

Kronberg Railway

Homburg Railway

City tunnel

The city tunnel is an underground, pure S-Bahn route used by almost all services. In a short section between Mühlberg and Offenbach-Kaiserlei the South Main railway is used.

Main-Neckar Railway

History

The S4 was one of the first six services of the Rhine-Main S-Bahn system. In a prior test operation it ran between Kronberg and Frankfurt Central Station. The service was then called R4 where the letter "R" stands for regional. After the opening of the Frankfurt Citytunnel the service was renamed to S4 and extended to the new Hauptwache underground station. Further extensions of the tunnel followed in 1983 and 1990 so that the Südbahnhof became the service's eastern terminal.

Operation

  1. Kronberg – Langen
  2. Frankfurt Hbf – Langen
  3. Kronberg – Darmstadt Hbf

    Main-Taunus-Kreis

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Frankfurt am Main

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Kreis Offenbach

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Kreis Darmstadt-Dieburg

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Darmstadt