Building Steep Gradient Routes

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  • steamer_ctn
    Member
    • May 2010
    • 87

    #1

    Building Steep Gradient Routes

    As part of some work to develop rack railway functionality in OR, I built a small test route with 16% gradients on it. The route changes directions in two locations, one on the level, and one at the maximum gradient.

    The curve at maximum gradient appears as though the pieces do not connect together in a "smooth" fashion, and when the train runs over it there are noticeable bumps.

    I am not sure whether this is a placement issue with TSRE, or a display issue with OR.

    The route can be found here.

    Can this be looked at when time permits?
  • kapitaen
    Senior Member

    • May 2010
    • 331
    • Germany
    • German + a little bit English
    • MSOR

    #2
    Originally posted by steamer_ctn
    The curve at maximum gradient appears as though the pieces do not connect together in a "smooth" fashion, and when the train runs over it there are noticeable bumps.
    This has been a problem since the early days of MSTS. Gradients and curves have never been compatible.

    The motto was to lay track sections as short as possible. It would also be possible to try using suitable track profiles and superelevation.

    Jan

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    • baldwin
      6000 Post Veteran


      • Nov 1999
      • 6358
      • Chippenham, Wiltshire, UK.
      • ORTS

      #3
      Looking at the Z track shapes, there are plenty of short straight and curve sections that should allow for smoother transitions. This mismatch on slopes and curves is very evident on the Snowdon route in places. That is on my list of things to do once I find my roundtuit.
      Beer is not a matter of life or death, it is much more serious than that.

      Comment

      • kapitaen
        Senior Member

        • May 2010
        • 331
        • Germany
        • German + a little bit English
        • MSOR

        #4
        I tried it with superelevation. The visible offset of the tracks has disappeared, but unfortunately the jumping over the track ends remains.

        Screen Shot 02-13-26 at 11.50 AM 001.jpg

        Laying the tracks with TSRE is the problem. You can already see from the TDB lines that the rails are not closed together.

        au_ctn_test_route_ErrCorr.zip

        Jan

        Comment

        • steamer_ctn
          Member
          • May 2010
          • 87

          #5
          Thank you for the feedback.

          I wonder if this could be added to the TSRE to do list.

          Comment

          • kapitaen
            Senior Member

            • May 2010
            • 331
            • Germany
            • German + a little bit English
            • MSOR

            #6
            In Msts RouteEditor, the maximum gradient is 2.76428°. There are now 8.91418° laid here.

            Screen Shot 02-14-26 at 08.48 AM.jpg
            Jan

            Comment

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