| S4 | |
|---|---|
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&sq=Facebook&lang=en&file=File:Frankfurt-Westbahnhof_Gleis_1.jpg) S4 at Frankfurt West station, bound for Kronberg | |
| Overview | |
| Status | Operational |
| Owner | Rhein-Main-Verkehrsverbund |
| Line number | 4 |
| Locale | Frankfurt Rhine-Main |
| Termini | |
| Stations | 22 |
| Service | |
| Type | Rapid transit, Commuter rail |
| System | S-Bahn Rhein-Main |
| Services | |
| Route number | 645.4 |
| Operator(s) | DB Regio |
| Depot(s) | Frankfurt Hbf |
| Rolling stock | DBAG Class 423 |
| History | |
| Opened | 28 May 1978 |
| Technical | |
| Line length | 33.5 km (20.8 mi) |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Electrification | Overhead line |
The S4 service of the S-Bahn Rhein-Main system bearing the KBS (German scheduled railway route) number 645.4