Although Autodesk InfraWorks is usually referred as preliminary design tool, it can work great as a post-design too. By allowing to import and display completed Autodesk Civil 3D projects in context. The choices to transfer data from Civil 3D to InfraWorks are provided from the ribbons Output tab, the Export panel provides 2 choices: Export IMX and Export to LandXML. Each file has it’s pros and cons.
Exporting from Civil 3D LandXML Files
The LandXML file format allows the raw data to be written out in a non-platform specific format. The advantage is that with this method we are presented with the option to select exactly what we want to export. Once the command is executed a location to save the file has to be specified. A disadvantage is that sometimes the data looks quite right and at times it creates jagged elements.