Clear corridor bowtie function creates weird links

[Anonymous]

I'm trying to use the clear bowtie function on a corridor that's daylighting to a surface, but every time I use it, I get this "lasso". What's causing this? The sub-assemblies I'm using are standard civil 3d sub-assemblies. 

[Mike.M.Carlson · Accepted solution]

Hello,

Based on your shared pics, it looks like you have an interior corridor radius that is too tight with too long of a side slope daylight for the bow tie cleanup command to resolve it.  I'm not sure a consistent daylight side slope could be maintained perpendicular to your interior ETW in this area given this corridor geometry.  I would treat this tight corner as a separate region and try to transition the interior daylight slope through the curve with the help of offset and elevation targets.  Sorry no simple fix. 

[Anonymous]

I managed to fix it by drawing a feature line from the the point where my daylighting intersects to the center of the curve of my ditch, then I targeted this feature line.