| IfcEntity | I | IfcProject or another object from IFC database | Generic Data |
| StartDistance | D | Distance along the horizontal alignment as measured along the corresponding IfcAlignmentHorizontal. | Number |
| HorizontalLength | L | Length measured as distance along the horizontal alignment of the segment. | Number |
| StartCantLeft | S | StartCantLeft | Number |
| EndCantLeft | E | EndCantLeft | Number |
| StartCantRight | S | StartCantRight | Number |
| EndCantRight | E | EndCantRight | Number |
| Shape | S | Shape Predefined type of the horizontal alignmnent segment (0=CONSTANTCANT 1=LINEARTRANSITION 2=HELMERTCURVE 3=BLOSSCURVE 4=COSINECURVE 5=SINECURVE 6=VIENNESEBEND) | Integer |
| StartTag | T | Start Tag | Text |
| EndTag | T | End Tag | Text |