A quick test of creating cant in ORD - not fully satisfied...

I made a quick test in OpenRail Designer with a simple geometry (consists of 2 straight lines and a curve R=900m and transition curves L=80m). This is the parameters before the cant is created:

My questions: (1) Can I change the "Equilibrium constant"? We noramally use a fixed value: 11.8. (2) Is there a setting for rounding the "applied cant" to f.x. 5 mm? This option was in PRT SS2/SS4.

The result of the calculated cant is shown below:

My comments/questions: (1) The unit for cant should be mm (not cm). And it'll be great if the unit is only shown in the title line and not in every cell (it'll make it easy when exporting to f.x. excel). (2) Can I show the result with fixed decimals? (3) how do I rearrange the order of the fields?

Thank you!

LiPeng

  • The edit cant table is using the design file setting. So if you change the working units (sub units are used) accuracy and remove the unit label (mm) you will get the expected result. You can choose the columns displayed and order by right clicking on the header and go to show colums>More...



  • I don't see yet variables to set cant rounding and equilibrium constant

    Rounding should come with update1



  • Hi jpln,

    I posted a few more cant editor queries in the EAP forum, could you give me an update on these?

    • Can we have the ability to choose the method of cant application ('Rotate About') on a per element basis (rather than globally). This is because in some cases we need to apply adverse cant (i.e. lifting the 'wrong rail') to only one curve in an alignment. For instance, at the back of a contraflexure turnout on curved track you might need to apply adverse cant to the first curve on the branch alignment, whereas the rest of the alignment would have the cant applied conventionally. 
    • If you make a mistake in Cant Editor, e.g. delete a row, there's no Undo button. The main undo button in ORD doesn't seem to affect Cant Editor.
    • When you make a change to one element in an alignment, e.g. changing a curve radius, then go back into Cant Editor, it recalculates the cant for the entire alignment – losing all previous work - rather than just the single curve which has changed. 
  • Hi;

    Jean-Pierre already answered some questions, let me add to them. But first, I want to mention, we are not in a 3 month release cycle, that is we will be able to address the requirements much sooner and will be adding functionality incrementally. And your suggestions are very important for this process. So thank you for your feedback, we are looking for more.

    We will have cant rounding with the first update.

    Equilibrium constant is calculated based on the rail gauge with using standard methods. You can change the gauge to the value you use and you should end up with the same equilibrium value (11.8).

  • Thank you Paul, once more for your feedback. Sorry I missed these in the EAP forum.

    • Can we have the ability to choose the method of cant application ('Rotate About') on a per element basis (rather than globally). This is because in some cases we need to apply adverse cant (i.e. lifting the 'wrong rail') to only one curve in an alignment. For instance, at the back of a contraflexure turnout on curved track you might need to apply adverse cant to the first curve on the branch alignment, whereas the rest of the alignment would have the cant applied conventionally. 
      • This is something that we are investigating but not sure what will be the best solution. This is also a requirement for light rail. Can you provide some more information, maybe some drawings? You can also send directly to me (kivanc.karakas@bentley.com)
    • If you make a mistake in Cant Editor, e.g. delete a row, there's no Undo button. The main undo button in ORD doesn't seem to affect Cant Editor.
      • I could not reproduce this problem. Ctrl-Z seems to be working.
    • When you make a change to one element in an alignment, e.g. changing a curve radius, then go back into Cant Editor, it recalculates the cant for the entire alignment – losing all previous work - rather than just the single curve which has changed. 
      • This is a bug, and it is logged. Thank you for finding.