Autodesk Civil 3D是唯一能够在工程对象之间创建智能关系，从而使设计变更能够动态更新的土木工程设计工具。其增强的 3D 交互功能使用户可以轻松地建立和分析不同的设计方案，并实时更正错误，从而为用户提供了更大的设计灵活.

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As of March 20, 2008, AutoCAD® Civil 3D® – Land Desktop Companion 2009, which is included with AutoCAD® Civil 3D® 2009 software,  has been enhanced with new functionality, including support for survey analysis, grading, road modeling, pipes layout and drafting, hydrology, and hydraulics.