Siegmann_Stuhr_FREIGHT:Layout 1 19/5/08 11:48 Page 2
REIGHT
nowadays seem to be non-productive The state has to find a compromise configure the railway infrastructure and
in many cases. Still, many waterways when balancing different aspects of a the railway operations. On one hand, it
are not adapted to their size. traffic system, such as in the attractiveness gives concrete requirements for the usable
Nevertheless, the inland vessel is of the market, the costs of the length of train formation tracks and of
increasing its size. For example, it is infrastructure expansion, increasing overtaking points, but on the other hand,
planned to adapt parts of the river maintenance costs and safety issues. the process of forming trains is affected by
Neckar for vessels with a length of This results in a rather complicated this limiting parameter.
135 metres
1
. decision process that leads to some field A train length of 740 metres means 35
a73
Airfreight grows in a scale that tests but to no big changes at all. This is to 50 wagons per train, depending on the
apparently makes giant air freighters why a productivity increase of the freight kind of wagons. This number seems to be
profitable, which in the past only were transport system should be achieved appropriate for the times of steam or
used for military purposes. within today’s boundary conditions or diesel engines. But also the limits of the
a73
Again and again, it is requested to as a consequence of small changes, for antiquated screw coupling and the
increase the railway loading gauge in instance by modifying only one of the pneumatic brake control are achieved with
Europe with the aim of transporting limiting parameters. this limit of length. In order to reduce the
containers in two layers. With the longitudinal forces in the train to a level
existing gauges even Megatrailers or Enlargement of the train dimensions that prevents from derailments or
high-cube containers can only be Today’s limiting boundary conditions breakings of coupling, the total weight of
carried by special wagons under the According to the DB guideline 408 ‘Züge the train and the length has to be limited
contact wire. Double-stack container fahren und Rangieren’(‘Running Trains according to the characteristics of the
cars, which are frequently used in the and Shunting’), which is part of the terms track sections.
USA, require very expensive extensions of usage of the railway network of DB
of the gauge. Trace fees will not be Netz AG, the length of a rake of wagons Longer trains
able to recover the costs. Furthermore, is limited to 700 metres. Including the Freight trains with light goods rarely reach
double-stack container trains could traction units, the total train length can the load limit before reaching the length
only be realised on routes without reach a maximum of 740 metres. This limit. Therefore, it is theoretically possible
contact wire. limiting parameter is employed to to run trains with more than 740 metres
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