Finding guiderail point of need in Land Desktop 2004

[ACtrafficengr]

I also asked this in the AutoCAD forum. Sorry about the cross post.

I'm using (or attempting to use) Land Desktop 2004.
Looking at the cross sections, we have a 1:3 slope at Station 30+00, and a 1:1.5 slope at 30+50. Can LD find the point where the side slope exceeds 1:2, or should I generate sections every 10 feet?

This is a very low volume rural road (AADT = 300), so I don't want to waste money on rail that I don't need. After all, AASHTO has stated that rail is not usually cost effective for AADTs below 400.

Thanks!

"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928

"I'm searching for the questions, so my answers will make sense." - Stephen Brust

 

[civilperson]

Section at 30+83.3. (2:1)

 

[ACtrafficengr]

Thanks, but I would really like to learn to fish...

"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928

"I'm searching for the questions, so my answers will make sense." - Stephen Brust

 

[TerryScan]

I do not use Land Desktop. I do believe it has the tool common to civil software packages of "slope shading". If you have solved a proposed surface, one should be able to use this routine to evaluate where you exceed 2:1 slopes.