AutoCAD Civil 3D Land Desktop Companion 2009 is an extension of AutoCAD Civil 3D, a software package that integrates the familiar AutoCAD environment with specialized tools for civil engineering design and land development. This companion software provides users with a more streamlined process for executing tasks related to land surveying, site planning, and infrastructure design. It allows users to perform detailed analysis and simulations, create comprehensive design models, and automate many of the repetitive tasks associated with land development projects.