Join Eric Chappell for an in-depth discussion in this video Editing an alignment graphically, part of Basic Roadway Design with Civil 3D.
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…Design is an iterative process and…typically progresses from a rough layout to something more refined.…Luckily Civil 3D provides excellent tools for modifying alignments,…especially the graphical tools that we're going to look at in this video.…Let's get started.…Alignments are smarter when you compare them to AutoCAD geometry.…For example in this drawing I've got a Civil 3D alignment on the left and…an AutoCAD poly line on the right.…And although they look very similar as far as their geometric make up,…they actually behave quite differently when you try to modify them.…
If I click this alignment and then move the grip controlling the beginning point,…you can see how the curve responds, how it always wants to stay tangent.…And that's definitely a good thing when you're designing roads because if…the curves don't stay tangent you have some very difficult geometry to…navigate for a vehicle.…If I click on the poly line I don't see the same behavior.…When I move the end point, I create a very difficult situation to navigate for…
- Establishing the road centerline using an alignment
- Capturing and defining road elevations with profiles
- Designing the road cross-section using an assembly
- Building a 3D model of the road using a corridor
- Creating sections views of your design
- Designing intersections
Skill Level Beginner
Up and Running with Civil 3Dwith Jon Michael Roberts2h 31m Beginner
AutoCAD 2015 Essential Trainingwith Scott Onstott8h 35m Beginner
1. Understanding Corridors
Understanding corridors2m 20s
2. Creating an Alignment
3. Creating Profiles
4. Creating an Assembly
5. Creating the Corridor
6. Creating Sections
7. Designing Intersections
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