To export LandXML string roads from Autodesk Civil 3D

Use the LandXML export function in Autodesk Civil 3D to export corridor baseline alignments, along with associated feature lines. The Trimble Access Roads software reads the alignment and feature lines to create a road where the names of the feature lines are the name of the strings in the road. If required, you can include points and surfaces in the file.

If you haven't already done so, you will need to extract feature lines from the corridor key point codes before you export the LandXML file from Autodesk Civil 3D.

Extracting corridor feature lines

1. Start Autodesk Civil 3D and open the corridor drawing.

2. From the Home ribbon, select Create Feature Line From Corridor from the Feature Line drop down list.

3. Select the corridor.

4. Select the feature lines.

5. Press Enter.

6. In the Extract Corridor Feature Lines window, select the feature lines to extract.

   For complex projects containing multiple corridors, it is best to use sites where each site has the feature lines for just one corridor. Select the site from the Site column.

7. Tap Extract.

To export LandXML file from Civil 3D

1. From the Output ribbon, select Export to LandXML.

2. Select Edit LandXML Settings, and for the Alignment Export Settings set the Export Cross Sections option to Off.

3. Specify the alignment and feature line objects to export. If you moved the associated feature lines to a unique site, select from that site.

4. Tap OK and enter a file name.

5. Tap Save.

For more information, refer to the Autodesk Civil 3D Help.