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Road Corridors: Designing Realistic Road Networks

Building road designs is one of the most powerful capabilities of Civil 3D, and hence is the most commonly used product for design tasks. When you create road designs using Civil 3D, you need to use its features like alignments, profiles, and corridors extensively. However, you should have a complete perspective; understand how they fit together in a complete road-design model. Effective use of these features will allow you to establish the path of your road, specify elevations, and define the makeup and cross-sectional elements of your design. Designing intersections— complex traffic junctions, is a task that Civil 3D makes surprisingly simple.

The workflow:
The Civil 3D workflow has several elements that you should consider while making the design. Here are few noted below –

Create the base map: Road design typically begins by creating a surface of existing conditions and compiling a base map; information about the topography, parcels, utilities, and other potential impacts to the route design.Corridor

Design alignment: An alignment helps you define the main horizontal route that typically represents the construction baseline of the road. You can create this alignment by using field-collected survey information or from existing CAD entities such as lines, arcs, or polylines.

The design criteria: It is important that you determine the design intent and the constraints that are to be placed on the alignment. This includes speed and super elevation parameters. Design criteria may be assigned at the onset of the alignment layout or at any time during the design process.

Generate ground profile and design grades: Display the existing ground surface data for the design alignment and create the finished grades. Such profiles may be created graphically using profile creation tools, or generated from a best fit analysis of existing entities.

Construct assemblies: To define the cross-sectional component of the design you can construct assemblies that are built by connecting individual sub-assembly objects. This way, it helps you to simulate the geometry and material makeup of the road, and also help to define how it interacts with surrounding features along the route.

Optimize design: To create a better design you may be required to adjust one or more of the corridor components. For example, you can adjust the design profile to better balance cut and fill volumes. You can make the edits using a variety of methods, such as grips, via tabular inputs, and with object-specific editing commands.

We at Indovance Inc, have the expertise and vision for better future. Our Civil and Architecture drafting/design team helps our client to build sustainable infrastructure for generations to come considering all aspects. If you want to know more about our work and how can we partner and assist you, get in touch with us at +1 919-238-4044 or write us at [email protected]

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