Revision as of 17:56, 1 October 2024

Superelevation with Trainz 22

The "superelevation" or the slope of rails in curves is proposed since T:ANE. This page updates the instructions for Trainz 22

Implementing Superelevation

To resist centrifugal force and and not to wear out prematurely the outer rail, the track must be tilted on bends.

Here is the example of a machine launched to 80 kph in a curve of 500 meters of beam. The slope of the track has been set to 4 °.




To implement Superelevation in Trainz 22, follow the above steps :

On the tools palette,select the highlighted icone as shown on the opposite picture (1) Clic on the track to select it (2) Clic on one of the submits of the selected track (3)

Clic on Edit Properties (1) Complete both section (2) ...more details to follow in this ‘How To’... Do the same with the other submit of the track

Surperelevation : theoritical base

  The Superelevation is the height that the outside rail takes compared with the internal rail in a curve.

  It is calculated as the plan below shows it:
   

  Of the four variables above (G, V, R,g), one is unknown at the start: the radius of the curve.

  The diagram below shows how to determine it :
   

  Trainz 22 introduces an aditionnal concept for determining the superelevation of a curve: the degree of curvature.
Here, with a quarter-circle curve, the curve angle is 90°.

On the tools palette,select the highlighted icone as shown on the opposite picture (1) Clic on the track to select it (2) Clic on one of the submits of the selected track (3)

Here
The more open the curve, the greater the angle. The tighter the curve, the smaller the angle.    

  Every country has its own standards of superelevation. We find them rather easily on the internet.

  In France, the superelevation does not have to exceed 16 cms (6.3 inches) in standard gauge tracks and 10 cms (3.94 inches) in metrics.