Join Josh Modglin for an in-depth discussion in this video Creating a simple corridor, part of AutoCAD Civil 3D Essential Training.
- [Lecturer] Now that we've looked at creating assemblies, we have all the components that we'll need. We have our linear path and usually that contains or requires two objects, so alignment and profile. We can also use a feature line as well as our assembly. So now that we have all of this, let's go ahead and create a corridor. So I'm going to go ahead and open up a drawing, our exercise file 08_04_Corridor. And you'll here notice here, we have our alignment. We have our profile.
And on the far little left side here, we have our assembly. So we have all the components needed to create a corridor. Let's come to our Home ribbon, under Create Design panel, choose Corridor. We can name this or we can just let it use the alignment that we're going to feed it here. The corridor, of course is going to go on its layer and as a civil three object has its own style and then what kind of information are we feeding it for the linear path? What is it going to use for the baseline, a Feature Line or an Alignment and Profile? So in this case, it's going to be Alignment and Profile, we're going to go ahead and grab from the drawing of the alignment.
I'm going to select this alignment here. That's the Osceola Road alignment and then make sure that we choose the Layout Profile which is our finish grade design. Select the Assembly that we created in our last exercise. And because the Assembly has the ability to daylight, it says well, which surface in my daylighting back to which will be our existing grade or EG Surface. Since we're going to be looking at these controls in a later exercise, we're going to uncheck this box and we're going to click Okay.
And so, it's that quick that our corridor is created and we see visually, is also providing information on whether we're in cut or fill along that corridor. Let's go ahead and get a better grasp on what was created here. And so, we're going to take a look at this in 3D. Using our Object Viewer which is in our General Tools for any contextual ribbon item that we have selected.
So give us a second as we get a little bit closer to the object and get it rotated in such a way we can get closer look and get a full understanding on what's really going on. What is a corridor? So as we zoom in, what we see really is, those points links in a cross-sectional format. And if we change the look here to 3D Wireframe, we can even see it in more detail. So, we have the points visually showing up but even the shapes are there and they're applied as certain frequency.
The higher the frequency, the more accurate of course, that will have our corridor model. Of course, that also increases the size of our file. So we got to find a good balance there. If we go back to Conceptual, you see, what we have are the cross-section links connecting the points. So you have the line here, that's your daylight, in this case, we're in fill. And then we cross over, that's our sidewalk buffer, sidewalk. We get into our curb and gutter and our lane.
You see all the little points sticking up. And it's not just the points there at top but there's other points, we just can't see it in this view. And in addition to the sectional connection of the points, the software then creates a longitudinal connection between all of the points that have the same code. So now we're seeing the code coming into play. And so the idea, the concept's quite simple, just connect the dots. But the end result and the information that we can use from the corridor model is very powerful.
The key, is of course, taking advantage of those codes, getting the sub-assemblies placed correctly, so they all connect in a clean way along the linear path or longitude lane and not just in the sectional. And also, finding a good balance with the amount or frequency that we apply our assemblies to our linear path. The more frequent, the more accurate and the bigger the file. So we got to find a good balance there as well.
But that's all a corridor is, is just taking all the information and creating a 3D model. Now let's see what other controls though that we have with the corridor in our next exercise.
This course gets you up and running with AutoCAD Civil 3D. First, instructor Josh Modglin shows how to model a surface, lay out parcels, and design geometry, including the making of horizontal alignments and vertical profiles. Next, Josh demonstrates how to create corridors, cross sections, pipe networks, and pressure networks. Then, he covers working with feature lines and grading objects, and how to share your data. He wraps up by providing an overview of plan production tools.
- Navigating the Civil 3D interface
- Using point groups and description keys
- Importing survey data
- Managing figures
- Creating and analyzing surfaces
- Creating parcels
- Working with alignments
- Working with profiles and profile views
- Working with assemblies and subassemblies
- Creating Basic and Advanced Corridors
- Using an Intersection Object
- Making sample lines, cross sections, and section views
- Creating a pipe network
- Understanding pressure parts
- Creating and editing feature lines
- Creating and editing grading objects
- Sharing and referencing data
Skill Level Beginner
Some of the exercise files do not properly function.
This course was built to work with the latest release of AutoCAD Civil 3D. If you are not running AutoCAD Civil 3D 2018 there are some exercise files that will not work for you.
AutoCAD Civil 3D: Designing Residential Projectswith Eric Chappell3h 11m Intermediate
AutoCAD Civil 3D: Designing Gravity Pipe Systemswith Eric Chappell3h 33m Intermediate
1. What Is Civil 3D?
What is Civil 3D?4m 43s
2. Civil 3D Interface
3. Establishing Existing Conditions
4. Modeling a Surface
5. Layout of Parcels
6. Design Horizontal Geometry: Alignments
7. Designing Vertical Geometry: Profiles
8. Civil 3D Corridors
10. Gravity Pipe Networks
11. Pressure Part Networks
12. Feature Lines
13. Grading Objects
14. Share Your Data
15. Plan Production Tools
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