TunnelPart
   Tunnel part in the geometry.
  
  | Property | Long name | Unit | Description | 
|---|---|---|---|
| Name | name | - | Name of a tunnel part. | 
| TypeName | typename | - | TypeName of a tunnel part. | 
| Comments | comments | - | Comments on a tunnel part. | 
| UserFeatures | userfeatures | - | UserFeatures of the subsection of a tunnel part. | 
| Parent | parent | - | Name of the parent object of the tunnel part. | 
| Curves | curves | - | WHAT IS THIS? |