Track width, or
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During the transfer of the tracks certain tolerances for the track width must be kept. To close track widths lead to high equivalent taper and thus to a jerky or unstable run of the vehicles as well as tendentiell to higher wear. In close Gleisbögen one works frequently with Spurerweiterung, in order to make a better Bogenlauf possible.
track width differences
Often the choice of another track width than in had the neighboring countries military reasons (z. B. in Russia and Spain). One had fear that the enemy could use the Eisenbahnnetz in case of a war for own purposes. Railway companies selected their track widths also from financial considerations (narrowly = cheaply), regarding smaller wear in close Gleisbögen (with Schmalspur) or from regional considerations (e.g. kastilische course), so that a railway company can quite have different track widths.
Today track widths under 1435 mm 13%, over 1435 mm make 12% and the European rule trace of 1435 mm of 75% of the traction network existing in the world out (appoximate values).
track width excess
the different track widths however as large obstacle for the transnational railway traffic proved. In Spain there is the Talgozug, which offers the possibility of adapting to (standard gauge). In addition a special Umspuranlage must slowly over-drives to become, whereby the wheel sets align themselves to the new track width. This happens both on the border to France and in the Binnenverkehr between Madrid and Barcelona, where in Lleida the distance brought by an already finished gestelleten section of the new building distance on one changes over.
In transnational traffic with Portugal the slight trace trace is mastered by a broader wheel rim.
likewise there are
track widths with model courses with model courses different track widths, which are dependent on the scale and the track width of the selected model. World-wide the furthest common nominal size H0 on a scale 1:87 uses a track width of 16.5 mm, which correspond in for instance the standard gauge (1435 mm).
See also: Yardsticks of the model railway
Web on the left of
- track widths of the world
- Thomas Koppermanns track width side
- further track width enumerating
- history of the track widths
- G. H. Metzeltin: „The track widths of the railways - an encyclopedia to the fight for the track width.“, German society for railway history registered association., Karlsruhe 1974