Structures are understood to mean the road station intervals that will not have a cross-section template definition. This will be applicable for all later commands that work with this cross-section template, namely for drawing and checking cross-sections, volumes, surface area calculations, etc.

          The image is of a defined structure from station 100 to 300 inclusive.

Insert: This introduces a new white line into the list where the initial and final stations are introduced, between which the structure is found.

Select: This option enables the graphic selection on the drawing of the structure’s initial and final stations. The station is calculated projecting the point selected onto the working horizontal alignment.

Delete: Deletes the selected structure.

Delete All: Deletes all the defined structures. A warning appears to notify that all assignments will be deleted and may not be recovered.