Siemensbahn
Siemensbahn (German for "Siemens Railway") is an abandoned 4.5 km rapid transit line of the Berlin S-Bahn. It was opened in 1929 as a modern, grade separated, third rail electrified, double track, heavy rail branch line serving three new train stations.

The Siemens & Halske company privately financed the line to improve worker access to production and research facilites at its industrial district in the eponymous Siemensstadt locality of Berlin. Planning and construction were closely coordinated with Deutsche Reichsbahn and began in 1925 and 1927 respectively. Upon completion in 1929, Siemens handed over ownership and control to Deutsche Reichsbahn for integration into its "Berliner Stadt-, Ring- und Vorortbahnen" ("Stadtbahn, Ringbahn and suburban railways") network. The newly electrified network was rebranded as the Berlin S-Bahn in 1930.

Towards the end of the Second World War, a bridge across the river Spree was destroyed, and the second track subsequently removed as war reparations. By the time the line was fully restored in 1956, Siemens had relocated to Munich due to the division of Germany. Following the building of the Berlin Wall in 1961, the Deutsche Reichsbahn of East Germany remained in charge of a now bisected S-Bahn network. After decades of low ridership numbers and lack of investment, Siemensbahn fell into disuse in September 1980 when industrial action of East German railway personnel precipitated the abandonment of substantial portions of the West Berlin network.

The Siemensbahn north of the Spree crossing, including bridges, viaducts and ancillary buildings, is listed for conservation as a historic technical ensemble with the Berlin State Historical Monument Office (Landesdenkmalamt Berlin). There are plans to reactivate the line to serve a new Siemens research campus at the old Siemensstadt site as well as new housing developments. An eventual extension beyond Gartenfeld was anticipated during the original planning of the line but so far has not materialized, despite various proposals having been put forward over the course of almost a century.
Q188
German
Concept
Q357685
abandoned
LOC
Q4001397
rapid transit
UNK
Q99654
Berlin S-Bahn
MEDIA
Q334533
grade separated
Concept
Q748825
third rail electrified
Concept
Q962977
double track
Concept
Q7142599
heavy rail
UNK
Q655677
branch line
Concept
Q55488
train station
Concept
Q2290583
Siemens & Halske
ORG
Q1662024
industrial district
Concept
Q3510657
Siemensstadt
LOC
Q64
Berlin
LOC
Q698082
Deutsche Reichsbahn
ORG
Q694223
Stadtbahn
LOC
Q525056
Ringbahn
LOC
Q776167
rebranded
Concept
Q362
Second World War
EVE
Q1684
Spree
LOC
Q194181
war reparations
Concept
Q81230
Siemens
Concept
Q1726
Munich
LOC
Q1204290
division of Germany
LOC
Q5086
Berlin Wall
LOC
Q700563
Deutsche Reichsbahn of East Germany
ORG
Q628191
industrial action
Concept
Q16957
East German
LOC
Q56036
West Berlin
LOC
Q570600
listed for conservation
LOC
Q1976594
research campus
Concept
Q2284350
Siemensbahn
Concept
Q2284350
Siemensbahn
Concept
Q2284350
Siemensbahn
Concept
1929-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1929
DATE
1925-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1925
DATE
1927-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1927
DATE
1929-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1929
DATE
1930-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1930
DATE
1956-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1956
DATE
1961-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1961
DATE
1980-09-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
September 1980
DATE
+4.5^^http://www.w3.org/2001/XMLSchema#decimal
4.5
NUMBER
location
headquarters location
enclave within