Three-rail tracks in Norway

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Three-rail track and three-rail switch in Grovane station

Three- rail tracks were built in Norway , where railroad lines with different gauges met. The associated stations are called lane-changing stations . There are often track systems with several rails, but these are usually only short pieces of track. Today there is only one such station in Norway, Grovane north of Kristiansand , where the Setesdalsbanen museum narrow -gauge railway with a gauge of 1067 mm ( Cape gauge ) meets the standard-gauge Oslo – Stavanger ( Sørlandsbanen ) line.

For details on multi-rail tracks, see the relevant section:

Three-rail tracks through re-gauging measures

There used to be a large number of such lane changing stations in Norway. The reason was that the state railway network consisted of narrow-gauge (1,067 mm) and standard-gauge (1435 mm) lines from the beginning of 1861. In 1900 the state railway had roughly the same number of kilometers in narrow and standard gauge. In 1904 work began on converting the narrow-gauge railways into standard-gauge railways. These modifications lasted until 1949, when Vestfoldbanen was the last line to be converted to standard gauge. Some narrow-gauge railways were not rebuilt, but discontinued and dismantled.

Since the conversion to standard gauge took time, during which the routes continued to be served, this was done in sections. Several lane changing stations were required for the individual sections during the renovation. Rørosbanen , Norway's first main line , was the first line to be converted from the original narrow gauge to standard gauge on the entire Hamar - Trondheim line . The following table shows how the location and number of lane changing stations have shifted further and further along the route over the years:

Period Lane changing station Cause of change
1880-1881 Hamar standard gauge Hedmarksbanen was opened on October 11, 1880 between Eidsvoll and Hamar
1881-1910 Hamar, Trondheim normalspurige Meråkerbanen was born on October 17, 1881 between Trondheim and Storlien opened
1910-1917 Hamar, Trondheim, Elverum standard gauge Solørbanen was opened between Flisa and Elverum on December 4, 1910
1917-1919 Hamar, Trondheim, Elverum, Rena A three-rail track was put into operation between Elverum and Rena on November 16, 1917
1919-1921 Hamar, Trondheim, Elverum, Rena, Støren between Trondheim and Støren a three-rail track was put into operation from September 3, 1919 and between Hamar and Elverum from November 29, 1919
1921-1931 Hamar, Elverum, Rena, Støren standard gauge expansion between Trondheim and Støren
1931-1941 Koppang , Støren Standard gauge expansion between Hamar and Koppang on October 7, 1931
1941– - Standard gauge expansion between Koppang and Støren on August 5, 1941

The table shows two lines that were equipped with three-rail tracks over a longer period of time: Hamar – Rena and Trondheim – Støren. These makeshift arrangements were introduced because there were not enough standard-gauge vehicles available and freight wagons could get to the destination stations on the route section without having to reload.

For example, between 1919 and 1921 it was possible to transport freight wagons in the Oslo – Løten section on standard-gauge tracks, and narrow-gauge wagons from Trondheim could also be driven all the way over narrow-gauge tracks. Most of the three-rail sections were in operation during or immediately after one of the two world wars, as there was a shortage of new wagons at that time.

The first three- rail tracks were between Vippetangen on the Havnebanen and the industrial companies Thunes mekaniske verksted and Skabo jernbanevognfabrik in Skoyen . These were built in 1907 (Vippetangen - Vestbanestasjonen ) and 1913 (Vestbanestasjonen - Thune / Skabo) and existed until 1920.

The following table shows all three-rail sections on the main routes of the Norges Statsbaner :

Period Route section Railway line
1916-1921 Borgestad - Eikonrød Vestfoldbanen
1917-1922 Oslo V - Sandvika Drammenbanen
1917-1931 Elverum - Rena Rørosbanen
1918-1922 Sandvika- Asker Drammenbanen
1918-1921 Eidanger - Skien G. Grevskapsbane
1919-1931 Hamar - Elverum Rørosbanen
1919-1921 Trondheim - Støren Rørosbanen
1919-1922 Asker– Brakerøya Gamle Drammenbanen
1919-1923 Brakerøya– Drammen Gamle Drammenbanen
1924-1941 Eidanger– Oklungen Vestfoldbanen
1941-1944 Flekkefjord - Sirnes Flekkefjordbanen
1943-1944 Moi - Tronvik Flekkefjordbanen

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