LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
Civil 3D - Civil 3D supports BIM for civil engineering design and documentation for rail, roads, land development, airports, water and wastewater, and civil structures.
DraftSight - Discover Dassault Systèmes®' DRAFTSIGHT™ Professional CAD software that lets you create, edit, view and markup any kind of 2D drawing. Learn more here.
OpenRoads Designer - A detailed design application for roadway, surveying, drainage, and subsurface utilities that supersede capabilities previously delivered by InRoads and GEOPAK
FreeCAD - An open-source parametric 3D modeler
Site3D - Site3D is a fully featured software product for the engineering design of road systems, roundabouts, residential developments and earthworks.