Geospatial data, as well as other types of data, from different sources and various coordinate systems can be more easily used in the conceptual design or planning stages of a road project to investigate and evaluate design alternatives and optimize project performance. Import geospatial data such as soil types, land use information, and other environmental constraints to more quickly analyze and better understand the probable environmental impacts of different alternatives and promote sustainable design in transportation.

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Alignment creation tools in AutoCAD Civil 3D enable designers to more effectively work to define proposed geometry or recreate existing geometry. In addition, offset and widening features simplify the creation of geometry that model elements such as highway transitions, climbing lanes and other types offsets, allowing for better flexibility when creating simple or complex designs. Users can boost productivity with intuitive, dynamic features that allow for more efficient creation of alignment information while updating seamlessly as design modifications are made.

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Using criteria-based design, the engineer gets immediate feedback on whether the proposed geometry meets minimum standards required by the local agency. This more streamlined process helps save time, since the designer does not need to manually look up the values and check them against what is proposed. Errors can be avoided since the analysis occurs as part of the design, not after the design is complete.

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Drainage is an important consideration on every roadway design project. Rules-based tools can be used to lay out sanitary and storm drainage systems that meet local agency standards. Once draft layout is complete, interference checking can be performed to identify pipe network parts that may be in conflict with each other. Information such as invert elevation, pipe slope and pipe length are extracted from the model, so when modifications to the pipe network are made, the changes are reflected in a synchronous manner in all views automatically, minimizing manual drafting revisions.

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Building 3D corridor models with built-in intelligent behavior allows your model to adapt to conditions. This flexible approach meets even the most complicated design standards. By combining horizontal and vertical geometric constraints with customizable modeling components, highway engineers can create a dynamic, parametric model of their designs.

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The transportation engineering team can quickly identify areas of the corridor that need editing. Flexible tools to perform the edits are essential for efficient and more accurate roadway design. The importance of accurately modeling the corridor carries into construction, particularly with the expanded use of Automated Machine Guidance..

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In final design, project data, including horizontal and vertical geometries, drainage features, utilities, and right-of-way, are connected to each other, the corridor model, and to the documentation, allowing for last-minute design changes to be quickly synchronized throughout the model. This capability enables transportation professionals to keep projects on schedule and within budget.

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AutoCAD Civil 3D provides a framework for customizing your own styles and standards to meet the specific needs of your organization. Automatically generate construction documents using the styles-based drafting environment and the Plans Production wizard to automate the creation of drafting while maintaining drafting standards. Use xrefs and data shortcuts to generate drafting across multiple drawings.

The ability to place labels in transportation construction documents, such as plan sheets, in the sheet file itself, gives the design team more flexibility. Multiple people can work to finalize the annotations needed, versus having to place all labels in a single file.

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Intersection design is streamlined with a wizard driven procedure that automates geometry layout and corridor creation. Beyond accelerating the design process, this feature provides the ability to more quickly iterate through different intersection alternatives, making it possible to create detailed 3D intersection models for even the smallest project. Information in the intersection model is interrelated. When changes are made to one element in the model, other related elements, such as profiles, alignments and the corridor model, are automatically updated. This capability minimizes the need to make manual adjustments to each element of the corridor, helping to save time and reduce the chance of error.

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Quantity calculation has traditionally been one of the most time-consuming and tedious tasks during the detailed design phase of a roadway design project. The process in AutoCAD Civil 3D is more streamlined by extracting quantities directly from the model, minimizing the need for manual counting and the chance of error.

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