This command permits road element parameters to be modified, whether or not they belong to an alignment. In the cases of straight lines and circular curves, modifications may also be made directly with CAD commands. However, it should be remembered that if the road design element is grouped together with others, CAD will not modify the position of the group’s other elements. To modify clothoid values (radii, length or parameter), it is obligatory to use this command. CAD may, however, be used to change origin or orientation.
The program requests the element to be edited to be selected. Once selected, a dialog box appears giving a list of the whole group if it is grouped together with other elements. The line corresponding to the element selected is highlighted. It is also possible to select a horizontal alignment.
Edit: Displays a window where the road design element selected can be modified. The dialog box depends on whether it is a straight line, a curve or a clothoid.
Details: Displays a screen with additional parameters that can be obtained from the road design element.
Delete: Deletes the elements selected and adjusts the subsequent alignments, so that the whole group maintains its continuity.
Station: This is used to change the selected element’s Station. The corresponding Stations of the other group elements will be automatically modified.
Should the selected element not be grouped, the edit element window is automatically opened.