The road trace is determined by the list of the trace points and information on them. Each item is defined by this data :
Item type (direct, clothoid, circular arch).
Coordinates X, Y of the start point.
Stationing of the start point.
Additional data on the item (radius, parameter).
This item list is usually a result of processing the project by some of the specialized systems, e.g. ROADPAC.
You can add the individual points to the list by entering all the required data in the dialog window and pressing the button (Add). The new item will be placed before the item where the cursor is displayed.
After entering the trace, it is suitable to store it in the file by using the menu command File->Save.