topic Re: Road Profile to Rail Transition in InfraWorks Forum

Road Profile to Rail Transition

Anonymous — Fri, 22 Sep 2017 16:17:51 GMT

I am adjusting a road to fit between two rail crossings but no matter how I adjust the profile of the street it still has a noticable dip between the rail lines. The profile doesn't need to be exact but I just want to make it look smooth somehow.

Re: Road Profile to Rail Transition

ocastaneda — Sun, 24 Sep 2017 18:34:11 GMT

Hello @Anonymous

Yo have too many VPI's along this profile, and as far as I can see in order to have a smooth match between the rails, I find from STA 14+84.19 to STA. 18+84.64 the current location of the section of the road you are referring to, correct?

What I would do is to modify the length of this SAG vertical curve and adjust the actual station of this particular VPI. On top of that I would clean the unnecessary VPI's as well as adjust the vertical curve lengths. I am not sure if you are following any specific standards for design speed, K value, vertical geometry requirements, etc... You have this road listed as Local classification and Speed as 27.96 mph, so I guess not.

If you are going for a more precise profile, you can actually work on it within Civil 3D and through the mapexport command, shot this out as a shapefile, and bring it into Infraworks.

Here is a video that shows this workflow:

https://www.youtube.com/watch?v=cY4YDJNqIMU

If you find this answer helpful please click the ACCEPT solution and/or the KUDOS button...

Oscar Castaneda

Transportation Designer / P.E.

Infraworks Ambassador

Re: Road Profile to Rail Transition

BushW — Tue, 03 Oct 2017 17:03:53 GMT

Hi @Anonymous

Did @ocastaneda resolve your issue with the great suggestions? If so, please reward the post that worked with an ‘Accepted as Solution’ or Kudos, and please also mark a post or posts as Accepted Solution(s) that resolved the issue or answered your question and thank you for doing so, and I’m here to help.

Re: Road Profile to Rail Transition

Anonymous — Tue, 03 Oct 2017 17:09:24 GMT

We're still having problems with the rail crossing, even when we put the model into Civil 3D and adjust the alignment there the rail still causes the road profile to dip in the visualization although the profile view shows it to be smooth.

Re: Road Profile to Rail Transition

BushW — Tue, 03 Oct 2017 17:36:34 GMT

Hi @Anonymous

Ok, thanks for the reply back. Do you think it's possible if you can post the C3D drawing for review?

Thanks

Re: Road Profile to Rail Transition

ocastaneda — Tue, 03 Oct 2017 17:49:45 GMT

And the sqlite file too... I'd like to try and get this for him, but the coordinate system he is using is not helpful as I can't get it in the right location with model builder...

Thanks

Re: Road Profile to Rail Transition

BushW — Tue, 03 Oct 2017 18:01:01 GMT

Hi @Anonymous

Can please also, post the sqlite file. Thanks

Re: Road Profile to Rail Transition

Anonymous — Wed, 04 Oct 2017 13:58:27 GMT

Attached is sqlite file and the IMX from Civil 3D. The problem isn't with changing the alignment in Civil 3D, the problem is that Infraworks overrides that alignment at the rail crossings, we need a way to change how the road alignment is adjusted around these transitions in IW. As it is the Style Palette does not have the option to edit these settings, but it should. The file is too large so I'll upload it here.

https://www.dropbox.com/sh/rpxslcxsmhts0kq/AABrMqUwRPCM4eLOXm3G4tpua?dl=0