Technical information

Creating Cul-de-Sacs | 151
Key Concepts
■ Use continuous linetypes, instead of dotted or dashed lines, as you design
alignments that meet in intersections.
■ The Intersection commands can be used only for alignments with
symmetrical left and right offsets. The width of intersecting roads must be
the same.
■ You can use AutoCAD commands, such as BREAK, TRIM, and FILLET, to
create intersections when you do not want to use the automated
Intersection commands, or when the intersecting roads are asymmetrical
or have varying widths.
■ You can place points manually along intersection geometry by using
commands from the Points menu to create stakeout reports.
Creating Cul-de-Sacs
Cul-de-sacs are streets that are closed at one end, with a turnaround area at
the closed end. You can use the Cul-de-sacs commands to create horizontal
geometry automatically for the end of a cul-de-sac and to modify the setup
and creation of cul-de-sacs off roadway tangents and curves.
The Cul-de-sacs commands work only on line and arc objects, and not on
polylines. If the alignment is a polyline, therefore, use the Alignment Import
command to import the alignment as line and arc objects.
Key Concepts
■ The alignment used to create a cul-de-sac should be drawn using
continuous linetypes.
■ All cul-de-sac commands treat a single offset as the outer offset. The offset
widths that you specify in the Cul-de-sac Settings dialog box must match
the widths of the alignment offsets.