OpenROADS Vertical Geometry Tools

What vertical geometry tools should I use to create a proposed profile that is 2 inches above the existing terrain and has 50' transitions back to existing elevation at both ends?  I was able to create the 2" build up no problem using the "Profile from Surface" tool , but cannot figure out how to create the 50' transitions.  In SS2 I would place calculation lines on my profile at the tie ins and then offset them in 50' and snap lines between that calc line and the 2" build up, but the new profile viewer does not allow you place calculation lines so I can't locate the exact station to tie in. I'd like something to snap to versus typing in the station so there isn't a rounding issue.

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  • Thanks for getting back to me so quickly. I did set my project from surface profile to start 50' after the start and 50' before the end, so they are set to be tied into. However, whenever I try to draw a calculation line in the profile viewer to set my tie in locations I never get an option to type in a length and it doesn't let me lock in the X or Y coordinate so I can draw a straight horizontal or vertical line. All I ever get is a prompt to type in a station and a Z coordinate. Any thoughts?
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  • Another collegue of mine had a suggestion. I have not tried it personally yet but it may assist. Use civil accudraw in the Profile View. The first point would be surface offset = 0.0 from existing ground and station = to start station, the second point would be surface offset = 2" and delta station of 50. If you have a moment to try that and see if you find that it gives the results you want.


    For more information about the Road and Site design tools, visit the Road and Site design WIKI at: http://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki

  • What does "calculation line" mean? It sounds like it might mean the profile line following the 2" overlay. If so, since you say "I did set my project from surface profile to start 50' after the start and 50' before the end, so they are set to be tied to", I would guess there's no more to be done but to connect the dots:

    Are you using the Profile Line Between Points to connect from the beginning to the 50' in? When using this tool, you can snap to the existing profile at the beginning of your project and then snap to the point where your full 2" overlay begins.

    To make sure the snap is at your BOP and EOP, draw vertical lines in the profile model (not necessarily civil lines, as profile lines are generally decidedly not vertical; but a common Microstation line will do), and then when you're putting together your feather, snap at the intersection of the new Microstation line and the existing profile.

    PS: Beebe Ray's solution is considerably more elegant than this and better honors design intent. I had guessed that this tool probably exists but I wasn't sure.

  • Thank you for the response. I was missing one step. Whenever I would try to place a 50 foot Non "civil" line in my profile view I would get a circle with a slash through my cursor, which is why I thought it had to be a civil line. All I had to do was click on my secondary screen and the line then became available. Wow, not sure how I missed that. Thank you for your help.