Why? Why do corridors do this?

[ToddRogers-WPM]

I have switched from Inward to Outward, and back to Inward. No change...

[Kevin.Spear]

I know this isn't helpful, but...

[tcorey]

Use points codes that specify the side of the road they are on: EPR and EPL, instead of just EP, will prevent the crossing over of feature lines.

[ToddRogers-WPM]

Thanks Tim. I will try tomorrow morning.

[ToddRogers-WPM]

Did not work. I have attached the drawing...

[tcorey]

Hi Todd,

Both Assemblies, Left and Right, have the same point codes: Lane, Back_Curb, Top_Curb. The codes do not differentiate between point code from one side and point code from another side.

[ToddRogers-WPM]

Thanks Tim. For the life of me, I cannot find where to change the name, or add R and L.

[tcorey]

The codes appear to be hardwired into the subassembly. Do you have the pkt file?

[ToddRogers-WPM]

Yeah, these are the standard OOTB LaneInsideMultiLayerVaryingWidth.

[Jowennl · Accepted solution]

Hi @ToddRogers-WPM ,

This is a corridor method issue. See images below. Just split them into 3 regions then turn off the middle region.

Region 1 = ok

Region 2= Use 1+08.77' - 1+18.53' <- Display off

Region 3 = ok

1_Corridor_Method_Issue.png2_Workaround.png

Cheers,

Jowenn

[Jeew-m · Accepted solution]

Hi TRogers,

This has happen because of your feature line. If you see at the problematic location the feature line takes a 90 degree bend. So the right side corner of the corridor also have a perpendicular shift. Even though we see it as something wrong what really Civil 3D has done is connecting the point codes as links at a 90 angle.

The case is more severe because you have set up horizontal geometry points for frequency lines. In this location your feature line has so many vertices. It has led to many frequency lines at this area and assembly has applied over the corridor at closer interval than 25'. The total mess is created by the frequency lines generated at the vertical part of the baseline called LEFT 1.

As Jowenn has proposed you can turn off a certain area to get rid of the issue.

Otherwise you can weed some PI points in the feature line and use split corridor option with some gap(as similar to jowenn's suggestion.) to avoid adding a frequency lines at the vertical portion of the baseline.

Thanks