I would kindly request Autodesk to review the following items for Civil 3D IFC export compliance:
- Type, Name and description cannot be exported for 'Solid' modelled objects
- Structure and Pipes- Type and Instance Name can be exported appropriately - but an option to ensure this attribute can be associated in a separate parameter rather than setting it up in the Object Library
- Site Name allowed to include special characters
- Classification reference / IfcRelClassification cannot be exported to IFC from Civil 3D
