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Civil 3D Alignment Essentials
Rating: 4.7 out of 5(6 ratings)
44 students

Civil 3D Alignment Essentials

Examine Creating and Editing Alignments
Created byCharles Ellison
Last updated 4/2024
English
English [Auto],

What you'll learn

  • Creating an Alignment with the Alignment Layout Tools
  • Adding Free Curves and Spirals to an Alignment
  • Adding Floating Curves to an Alignment
  • Editing the Layout Parameter Values of an Alignment
  • Grip Editing an Alignment Free Curve Entity
  • Applying a Mask to an Alignment
  • Creating Offset Alignments
  • Editing an Offset Alignment
  • Adding a Widening to an Offset Alignment
  • Editing an Offset Widening

Course content

1 section • 12 lectures • 39m total length

  • Introduction & Exercise Files1:16

    Explore Civil 3D alignment essentials through a hands-on introduction and step-by-step videos, with downloadable exercise files to practice and build proficiency and confidence.

  • Creating an Alignment with the Alignment Layout Tools3:51

    Create a new centerline alignment in Civil 3D with the alignment layout tools, adjust curve and spiral settings, snap to the center, and place tangents.

  • Adding Free Curves and Spirals to an Alignment4:12

    Add free curves and spirals to an alignment using the alignment layout tools, creating a 200 ft tangent fillet and a 50 ft curved spiral between segments.

  • Adding Floating Curves to an Alignment5:38

    Learn how to add floating curves to a Civil 3D alignment using best fit with Cogo points and a reverse curve with spirals, including setting pass-through points and synchronizing data.

  • Editing the Layout Parameter Values of an Alignment4:27

    Edit alignment layout parameters using the alignment grid view and sub entity editor to adjust spirals, radii, and lengths, and see changes update both drawing and panorama views.

  • Grip Editing an Alignment Free Curve Entity2:00

    Edit a free curve entity in a Civil 3D alignment by using grips to move the pass-through circle grip and adjust radius while keeping tangents connected.

  • Grip Editing an Alignment Floating Curve Entity3:37

    Explore grip editing of a floating curve alignment in Civil 3D, examining pass-through points, dynamic labels, and how radius and curve length update as you modify the curve.

  • Applying a Mask to an Alignment2:31

    Apply a mask to an alignment in Civil 3D by defining masking regions in the alignment properties, selecting curve endpoints, and masking intersection geometry.

  • Creating Offset Alignments2:33

    Create offset alignments for a 24-foot wide roadway by selecting the main alignment, setting 12-ft left and right offsets, and applying the ETA style with offset labels.

  • Editing an Offset Alignment3:19

    Edit offset alignments in Civil 3D by linking to the main centerline, adjusting width to 24, and extending to end via grips.

  • Adding a Widening to an Offset Alignment4:27

    Learn to add a widening to an offset alignment in Civil 3D, from station 150 to 1000, with 24 ft width and an 18 ft widening from 550 to 750.

  • Conclusion & Next Steps1:41

    Master Civil 3D through persistent practice, using exercise files and video tutorials, and stay connected with the Civil 3D YouTube channel for ongoing proficiency.

Requirements

  • A basic knowledge of AutoCAD commands

Description

The horizontal alignments that serve as the foundation for modeling roadways will be introduced to you in this course.

Alignments are made up of a collection of lines, curves, and spirals that are seen as a single thing.

In addition to pipe networks and other construction baselines, alignment objects can represent road centerlines. One of the first tasks in designing a road, railroad, or site is creating and specifying a horizontal alignment. The named alignment can be made from the alignment geometry, which can be drawn as a polyline. The Alignment Layout Tools can be used to generate an alignment object for more control. Additionally, tangency between the alignment components is automatically maintained when editing alignments using grips or the commands on the Alignment Layout Tools toolbar.

Profiles, sections, and corridors can all have alignments as their parent object or as a stand-alone object. When you modify an alignment, all associated items are automatically updated.

Give an alignment a type when you create it, such as centerline, offset, curb return, rail, or miscellaneous. These alignment types can be used to classify your data according to alignment function. Choose the centerline type for a road centerline, the rail type for a railroad, or the other type for other applications, such as a utility conduit. They are autonomous items of these types.

Curb return and offset alignments can both be independent, but they are frequently dynamically coupled to other alignments. Curb returns and offset alignments can both be generated automatically as intersectional elements. Widenings may also use offsets.

You can determine how the corridor will behave around curves after an alignment has been built. You can compute cant along rail alignments as well as superelevation along centerline, offset, and curb return alignments.

In the Prospector tab, alignments are listed in either the Alignments collection or a Site collection. You can generate reports, alter the alignment characteristics, and export LandXML from these collections.

Who this course is for:

  • Civil 3D Beginners

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