[rossuwp00]

Hi all,

I am currently working on a corridor redesign. My problem is that at the beginning of my corridor, I have three lanes (an acceleration lane, and two through lanes). The Acceleration lane terminates after 850 feet. My problem, is I want to create an assembly that starts with 3 lanes, and tapers down at a 13.5:1 rate, to two lanes. Is there any way to create a subassembly that will address this taper? Thank you for any thoughts!!

[BIGAL]

Were lucky here in Aus we have ARD it sits on top of Civil3D we can have as many lanes and configurations (alignments) as we like the software joins them back up.

In your case 3 alignments

Most of our jobs left and right kerbs are independant in every direction.

[rossuwp00]

Bigal,

Thank you for your response; however, how do I address the fact that on my second alignment one of the lane widths will change from 12' to 0' over the course of the alignment? Thoughts?

[BIGAL]

Sorry for not getting back to you sooner As I said above here in AUS we have been able to do multiple alignment designs for over 20 years using first other software, LDD came along and it was not very good when you compared it to the Civil package we were using hence very limited uptake.

A few more years and CIV3D arrived quite honestly if I was starting new I would not buy CIV3D on its own the older civil packages still blow it away on road designing capability.


We now run CIV3D and ARD the best of both worlds I would not be suprised if the Author behind ARD an Australian gets bought out again this time by Autodesk.

[alanjt]

Originally Posted by BIGAL

Sorry for not getting back to you sooner As I said above here in AUS we have been able to do multiple alignment designs for over 20 years using first other software, LDD came along and it was not very good when you compared it to the Civil package we were using hence very limited uptake.

A few more years and CIV3D arrived quite honestly if I was starting new I would not buy CIV3D on its own the older civil packages still blow it away on road designing capability.


We now run CIV3D and ARD the best of both worlds I would not be suprised if the Author behind ARD an Australian gets bought out again this time by Autodesk.

I saw a demo for the software, it's beyond incredible. Where I work currently, we don't do a lot of road design, so it's not needed, but if we were, you can bet I'd be buzzing in the boss' ear for it.

[sinc]

Originally Posted by rossuwp00

Bigal,

Thank you for your response; however, how do I address the fact that on my second alignment one of the lane widths will change from 12' to 0' over the course of the alignment? Thoughts?

Use another alignment (or, in Civil 3D 2009 and later, a Polyline or Feature Line) as a horizontal target for whatever subassembly you're using to model your lanes.

[rossuwp00]

Sinc,

Good idea. I'll try it and let you know if it worked!! Thank you!!

[rossuwp00]

Sinc,

Awesome!!! I can't believe how easy that was. Thank you so much. I have Civ3D 08, so I'll just pretend with the extra alignment, but for all sakes and purposes, it should be fine!