I've just posted an updated version of the National Road Network geodatabase schema on the ArcGIS Resource Centre. In addition to schema updates, the download now includes a set of geoprocessing tools to help you load the National Road Network datasets into your own geodatabase.
![By Seattle Municipal Archives from Seattle, WA [CC-BY-2.0], from Wikimedia Commons](http://upload.wikimedia.org/wikipedia/commons/e/e8/Seattle_-_Aerial_of_lower_Queen_Anne%2C_1962.gif)
I've just posted an updated version of the National Road Network geodatabase schema on the ArcGIS Resource Centre. In addition to schema updates, the download now includes a set of geoprocessing tools to help you load the National Road Network datasets into your own geodatabase.