Overlapping Section Lines in Corridor Because of PI in Alignment

[dbussie]

Because there is a PI in my alignment, the section lines in my corridor are overlapping creating problems with the surface.  Is there anything that I can do in this situation?  Please see attached screen shot.

Thank you!
Desirea
Civil 3d 2014

[wfberry · Accepted solution]

You need a curve to remedy this.

Bill

[csevers]

I'm confused. What problems are caused in your corridor? I don't think a section line can change a corridor in any way.

[Joe-Bouza]

Ditto Bill's suggestion it could be small but should be in there. Think about it if you are standin inside the pi what station are you at? left of pi or right of pi

[wfberry]

The radius of your curve should be just larger than the distance from the alignment to the back side of you corridor (particularly on the inside of the curve).  Is your "picture" complete?  Will you have daylight lines, if so you need to allow for that.

Bill

[fcernst]

http://forums.autodesk.com/t5/AutoCAD-Civil-3D-General/Alley-Corridor/m-p/3742777/highlight/true#M19...

[dbussie]

Thanks everyone.  I will add a curve.  I had it drawn the way the engineer had shown it in the plans.

[Ntuthuko. · Accepted solution]

You don't need a curve. What's happening is, as you can see you have two sectional lines there, one at the PI and one just after. The one after the PI has obviously turned the corner and is hence deflected and subsequently intersecting the other one. My guess is the line after the PI relates to your PVI (vertical profile). The PVI should be exactly at the PI but you've missed it by a small amount. Fixing this will solve this problem.

[I know the question was asked 4 years ago but this might help someone.]

Ntuthuko

[Joe-Bouza]

Keep in mind the vertical geometry will not alway match the horizontal. The horizontal curve addition is you best bet

[Ntuthuko.]

Joe

That's true. It's best to understand what is going on and then make an
informed decision, rather than adding or omitting elements unnecessarily.

Ntuthuko

[fcernst]

No..

Need to specifically address the mitered corner problem, "not add a curve"...

Either use 2017, or my solution from 2012 that uses Subassmblies that can Miter together.