Complicated widening criteria based on gradient and bend angle

Complicated widening criteria based on gradient and bend angle

neilyj666
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Complicated widening criteria based on gradient and bend angle

neilyj666
Mentor
Mentor

Hoping someone has some ideas on this one.....

 

I'm working on a windfarm project and the access track specification for track widths, bend angle and gradient is indicated below for horizontal bend internal radii of Rint.min (40m) to <=150m (there is another table for radii >150m)

 

Screenshot 2023-09-09 111309.png

 

I can only think of doing this manually by inspecting the profiles noting the gradient and bend radius and applying widening as required possibly using the corridor transitions functionality which would let me add the transitions to a file for later input.

 

I don't know if this could be accomplished using criteria files or similar and as I have no knowledge of Dynamo I wouldn't know if it is possible in that but this looks like the type of situation that would be ideal for Dynamo.

 

Anyone got any advice on the most efficient way of approaching this scenario as it has become the norm over the last few years as turbine components have increased in size.

 

Thanks

 

Neil

 

neilyj (No connection with Autodesk other than using the products in the real world)
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AEC Collection 2026 UKIE (mainly Civil 3D UKIE and IW)
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CivilFlow
Advisor
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I assume there is probably an elegant way to have Dynamo do this, but you would still have to verify. So I would stick with your gut on manual. If I were to do this, I would create a simple custom SA in SAC that queries the baseline.grade of your design profile as an output parameter. Then you could build a corridor with a code set style that generates colored feature lines based on profile gradient thresholds. Then you can assess your critical regions for steepness and match to table. Next you could look at your alignment geometry for the sharpest to least sharp curvature angles to see which bend threshold apply. then start to build your widenings and using the new transition feature as you said. 

 

Sheesh this one makes my head hurt. Curious what others think about a programmed way to deal with this assignment. Good luck.  

 




Michael M. Carlson
Senior Civil Designer
CADD Manager
AutoCAD Civil 3D Infrastructure Design Professional
AutoCAD Design Professional

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neilyj666
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@CivilFlow yes it is a bit of brain challenge...😉

 

I've just been looking at the profiles and hoping to add curve delta angles as a label and manually inspect all the bends. Luckily this is a relatively small project with not many tracks to consider but on bigger projects it could be soul destroying  

neilyj (No connection with Autodesk other than using the products in the real world)
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AEC Collection 2026 UKIE (mainly Civil 3D UKIE and IW)
Win 11 Pro x64, 1Tb Primary SSD, 1Tb Secondary SSD
64Gb RAM Intel(R) Xeon(R) W-11855M CPU @ 3.2GHz
NVIDIA RTX A5000 16Gb, Dual 27" Monitor, Dell Inspiron 7760