Discussion Groups

New Member
Posts: 2
Registered: ‎10-27-2010

# Superelevation with no curves

855 Views, 3 Replies
01-24-2011 11:06 AM

I'm working on a runway in Civil 3D 2011. I want to transition cross slopes along the runway. i.e. 1.5% for sta 1+00 to 10+00 and then transition into 1.0%. I thought superelevation would be the best way to do this (I dont want any actual superelevation, just transitions in cross slope). When I select the alignment and "Calculate/Edit Superelevation" i get the following message in the commmang line: "_AeccCalcEditSuperelevation No superelevation data has been calculated for the selected reference alignment." It does not bring up the wizard.

My runway alignment doesn't have any curves and I'm thinking that's the problem. Is is possible to create superlevation without curves? Am I missing something? If this wont work, what's the best way to accomplish my goal?

Mentor
Posts: 174
Registered: ‎12-14-2010

# Re: Superelevation with no curves

01-24-2011 11:09 AM in reply to: majoros

I haven't tried it myself but as soon as I read your question I said to myself "I just saw a blog post about that exact topic." And sure enough I did, take a look here.

Good luck!

Kati Mercier, P.E.
Co-author of "Mastering AutoCAD Civil 3D 2013"
AU2012 Speaker::: CI3001: Reverse Engineering with Subassembly Composer for AutoCAD Civil 3D
AU2011 Speaker::: CI4252: Create Subassemblies That Think Outside the Box With Subassembly Composer for AutoCAD® Civil 3D®
New Member
Posts: 2
Registered: ‎10-27-2010

# Re: Superelevation with no curves

01-24-2011 06:05 PM in reply to: KMercier_C3D

Thanks for the rely! According to the video I can make superelevation in an aligmentent with no curves as long as there is a alignment segment before and and after the point at which I want the transition. In other words, there has to be a PI at the transition.

My issue was actually that I was trying to add superelevation in my corridor drawing when my aligment lived in a different drawing  and was data shortcuted into my corridor drawing.

Active Contributor
Posts: 29
Registered: ‎12-22-2010

# Re: Superelevation with no curves

05-10-2012 10:29 AM in reply to: KMercier_C3D

KMercier_C3D wrote:

I haven't tried it myself but as soon as I read your question I said to myself "I just saw a blog post about that exact topic." And sure enough I did, take a look here.

Good luck!

to read "Make the superelevation on a straight alignment" article