Most of the widening is done by placing graphical elements in a .DGN file.   Usually this is the .DGN file that also contains your horizontal alignment.   These "widening" elements are drawn at exact offsets and using exact station ranges on the correct levels and at the correct colors that correspond with the desired type of widening set up in the cross section input file.

At the beginning of the cross section input file there should be a series of define_dgn statements.   These statements tell GEOPAK (that when an element at that level and color is found in the designated .DGN file), to widen the cross-sections accordingly.   In other words if your input file says:

         define_dgn "Widening B" \
		dgn = Plan.dgn \
		lv = 33 \
		co = 5 \
		type = curve, arc, line

			define "Widening B Slope" 1.0

If you want your edge of pavement to be drawn at 5 m left of centerline in a particular area just draw an element (parallel line, curve, or spiral) at 5 m left and on level 33 and at color 5.   When you process proposed cross sections...GEOPAK will see this element and automatically adjust the width of the edge of pavement to 5 m, regardless of the width of your shape, providing of course, that the edge of the shape is less than 5 m from centerline.

An easy way to draw this widening element is with the DRAW TRANSITION tool.   To use this:

This dialog box is self explanatory, but remember to check the proposed cross section input file to make sure that the elements are drawn on the correct levels and at the correct colors that correspond with the particular "define_dgn" statements.

These are the basic ways to add widening to a design using a defined element "in dgn":

1.  Pavement widening matching the same super as the shape:

         define_dgn "Edge of Travel Way" \
		dgn = Plan.dgn \
		lv = 49 \
		co = 18 \
		type = curve, arc, line

2.  Pavement widening with a user defined super rate: (Use Widening A thru F)

         define_dgn "Widening B" \
		dgn = Plan.dgn \
		lv = 33 \
		co = 5 \
		type = curve, arc, line

			define "Widening B Slope" 1.0

3.  Gravel Shoulder widening: (Two areas may need to be edited, depending on how the widening is to be constructed)

         define_dgn "Shoulder in dgn" \
		dgn = Plan.dgn \
		lv = 33 \
		co = 18 \
		type = curve, arc, line

---AND---

define "default shoulder slope" 2.0