Alignment Objects

Each road and tunnel object needs at least one alignment object which serves as the centreline.

The centreline is the main line in a road or tunnel model. It is the reference axis that determines the distance along the road or tunnel (chainage) and across it (offsets).

All alignments available in a project are grouped and listed in the navigator and the inspector.

By default they are imported or written to the alignments layer.

To create a new alignment:

To create a new alignment:

1.	Select Alignment from the Infrastructure ribbon bar.Next to the Property Grid the Create New Alignment tab opens up.
2.	Enter the alignment properties and select Create.
3.	The Infrastructure Manager opens up next to the Inspector.
4.	In the Infrastructure Manager builds up the alignment by defining its horizontal (mandatory) and vertical (optional) elements.For both the POB/VPOB (Point of Beginning/Vertical Point of Beginning) are already predefined assuming the Start Station as defined in the Alignment Properties.
5.	In the Inspector view right-click on the POB and select Add below from the context menu.Alternatively, select Add below in the Infrastructure > Road Design ribbon bar.By default an element of type Straight is added. Optionally choose a different Type and Method and edit the elements as required.
6.	Continue adding new elements below or in between (above).

Alignment

Create

Add below

Infrastructure

Road Design

To edit existing alignments:

To edit existing alignments:

1.	Right-click on the Alignment object in the Navigator or the Inspector and select Edit from the context menu.
2.	Edit the elements of the alignment in the Infrastructure Manager.

Edit

To use an alignment as centreline in a road or tunnel:

To use an alignment as centreline in a road or tunnel:

1.	In the Navigator or in the Inspector select the road or tunnel object.
2.	In its Property Grid go to Details and select Edit next to Centreline.
3.	Choose a different alignment from the list and confirm your selection with OK.
4.	Select Apply in the Property Grid to update the Road object.

Edit

OK

Apply