Almost all gravity yards have been retrofitted with humps and are worked as hump yards.
2.
In the USA, there were only very few old gravity yards; one of the few gravity yards in operation today is CSX's Readville Yard south of Boston, Massachusetts.
3.
In the USA, there were only very few old gravity yards; one of the few gravity yards in operation today is CSX's Readville Yard south of Boston, Massachusetts.
4.
Most gravity yards were built in Germany and Great Britain, a few also in some other European countries, for example Aazy yard near Zawiercie on the Warsaw-Vienna Railway ( in Poland ).
5.
Since Nuremberg Rbf has a downward gradient of the track ( see Gravity Yard for an explanation ), the locomotives are coupled with 6 axle flat wagon loaded with concrete weights that have been converted to brake tenders so that it is possible to stop trains of up to 2000 tons in weight.
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