S3 (Rhine-Main S-Bahn)

S3
S3
	S3 towards Bad Soden at Frankfurt (Main) Süd
Overview
Status	Operational
Owner	Rhein-Main-Verkehrsverbund
Line number	3
Locale	Frankfurt Rhine-Main
Termini	Bad Soden; Frankfurt-Süd;
Stations	18
Service
Type	Rapid transit, Commuter rail
System	S-Bahn Rhein-Main
Services	Limes Railway, Homburg Railway, Citytunnel Frankfurt
Route number	645.3
Operator(s)	DB Regio
Depot(s)	Frankfurt Hbf
Rolling stock	DBAG Class 423
History
Opened	28 May 1978
Technical
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	Overhead line

The S3 service of the S-Bahn Rhein-Main system bearing the KBS (German scheduled railway route) number 645.3

Lines

Limes Railway

Homburg Railway

City tunnel

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).

History

Year	Stations	Route
1974 (R3)	11	Frankfurt-Höchst – Frankfurt Hbf
1978	15 (+4)	Frankfurt-Höchst – Hauptwache
1983	16 (+1)	Frankfurt-Höchst – Konstablerwache
1990	19 (+3)	Frankfurt-Höchst – Frankfurt Süd
1997	26 (+10, -3)	Bad Soden – Darmstadt Hbf
1999	27 (+1)	Bad Soden – Darmstadt Hbf
2002	28 (+1)	Bad Soden – Darmstadt Hbf
2008	29 (+1)	Bad Soden – Darmstadt Hbf
2024	18 (-11)	Bad Soden – Frankfurt Süd

The S3 was one of the first six services of the Rhine-Main S-Bahn system. In a prior test operation it ran between Frankfurt-Höchst and Frankfurt Central Station. The service was then called R3 where the letter "R" stands for regional. After the opening of the Frankfurt Citytunnel the service was renamed to S3 and extended to the new Hauptwache underground station. Further extensions of the tunnel followed in 1983 (Konstablerwache) and 1990 (Ostendstraße and Lokalbahnhof) so that the Südbahnhof (South station) became the service's eastern terminal.

Operation

S3 to Bad Soden departing Frankfurt West

S3 in Frankfurt-Rödelheim passing the western business park

S3 departing Schwalbach Limes station

Bad Soden – Frankfurt Süd

	Journey time			S-Bahn service since
1
Main-Taunus-Kreis edit
	0		Bad Soden	1978
	2	+2	Sulzbach Nord	1978
	4	+2	Schwalbach Limes	1978
	6	+2	Schwalbach Nord	2008
	8	+2	Eschborn-Niederhöchstadt	1978
	10	+2	Eschborn	1978
	12	+2	Eschborn-Süd	1978
Frankfurt am Main edit
	15	+3	Frankfurt-Rödelheim	1978
	19	+4	Frankfurt West	1978
	21	+2	Frankfurt Messe	1999
	23	+2	Frankfurt Galluswarte	1978
	26	+3	Frankfurt Hbf (tief)	1978
	28	+2	Taunusanlage	1978
	30	+2	Hauptwache	1978
	31	+1	Konstablerwache	1983
	33	+2	Ostendstraße	1990
	35	+2	Frankfurt Lokalbahnhof	1990
	36	+1	Frankfurt South Station	1990