Historically it has been challenging to model a Civil 3D corridor having a daylight that transitions from one slope to another. As an example, please consider the corridor below...
Here, the middle region requires a daylight that starts at a 6:1 slope and gradually transitions to a 1:1 slope. Sometimes daylight transitions like this are created using a grading object, feature lines, or possibly a superelevation parameter.
Today, we will look at how a custom subassembly part can be used to create the variable slope daylight condition. Using this custom part (built from the Subassembly Composer application that ships with Civil 3D) we can easily complete the transition. Finished example below...
If you are interested, I've created a recording that walks through the process...
Would you like to experiment with the subassembly part used in this recording?
If so, it can be downloaded here - http://a360.co/1lzlVgv
A special thanks goes to Autodesk's Peter Funk who was the driving force behind creating this part!
-Jeff
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That's great news.
Could we use that subassembly (or modify for new one) that will vary the slope base on the corridor/centerline profile slope? The fact that when we model a daylight slope 2:1 with a steep profile the resultant slope of the daylight becomes significant steeper than 2:1 (the 2:1 slope is on the direction perpendicular to the centerline only). In some soil conditions Soils Engineers specifically recommend 2:1 max slope in all directions. In those cases, we have been manually changed the subassembly slope (i.e. 2.5:1 ~ 3:1)to meet the recommendations.
Posted by: QUAN NGUYEN | 11/23/2015 at 09:04 AM
Nice!Very, very nice!!
Posted by: Jason Porter | 11/23/2015 at 02:54 PM