Hi,
Does anyone know a quick solution to fix the Bowtie Error that happens around tight corners of a corridor? (image below)
- I know you can delete all the vertices, but it just goes back and re-draws if any edits are done to the corridor.
-I know you use a clipping reference to clip out the bowtie, and then generate new lines manually but that is very tedious.
Looks like Civil 3D solved this in 2018 so surely ORD 2021 must have a solution no?? Civil 3D 2018 New Feature: Clear Corridor Bowties - YouTube
Thanks in advance!
Aaron.
Unfortunately, this is more of a design issue. The tight radius conflicts with the steepness of your end conditions. In real world construction grading there is warping that occurs around corners like this. Also, I think you want the end condition to basically catch on itself vs the existing ground. You can use an end condition exception around the corner and find away to custom grade it with linear templates and a different alignment.
I could be wrong on that first message, but I believe the AutoCAD tool is altering the slope of the end condition around the corner. Basically, its not a uniform slope value going around the corner. I believe it flattens the slope as needed.
Also haven't experimented with it, but there is a tool called "Create Conic Slope". I would hope that deals with this concept.
Hi Aaron, Civil 3d only solved bowtieing in earthworks daylighlighting and OpenRoads has had that functionality for a very long time. As Mark stated you need to resolve your base corridor design to avoid the overlaps, perhaps by applying a small fillet point control.
Regards,
Mark
OpenRoads Designer 2023 | Microstation 2023.2 | ProjectWise 2023
Alternatively you could use Linear Templates to take advantage of the exterior corner sweep capability. This is essentially road corridor bowtie resolution but built for more irregular geometry typically.