| S9 | |
|---|---|
|
Train crossing the Main river in Frankfurt
|
|
| Overview | |
| Type | Rapid transit, Commuter rail |
| System | S-Bahn Rhein-Main |
| Status | Operational |
| Locale | Frankfurt Rhine-Main |
| Termini |
Wiesbaden Hauptbahnhof Hanau Hauptbahnhof |
| Stations | 25 |
| Services | Taunus Railway, Main Railway, Citytunnel Frankfurt, South Main S-Bahn |
| Line number | 9 |
| Operation | |
| Opened | 2000 |
| Owner | Rhein-Main-Verkehrsverbund |
| Operator(s) | DB Regio |
| Depot(s) | Frankfurt Hbf |
| Rolling stock | DB Class 420 |
| Technical | |
| Line length | 66.1 km (41.1 mi) |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
| Electrification | Overhead line |
| Route number | 645.9 |
The S9 service of the S-Bahn Rhein-Main system bearing the KBS (German scheduled railway route) number 645.9.
The city tunnel is an underground, pure S-Bahn route used by almost all services (except for the S7 service which terminates at the central station). In a short section between Mühlberg and Offenbach-Kaiserlei a line parallel with the South Main railway is used.
This service was first introduced in 2000 to provide an alternative route to Wiesbaden via Frankfurt Airport skipping Rhineland-Palatinate and its capital Mainz.