After a template is created the pavement layers can be edited through the pavement description table in the bottom half of the dialog.

To access the pavement layers, press the Pavement tab in the Road Pavement Dialog.

Ensure that the correct template is active before describing/modifying the pavement.

In the pavement description table there are some columns:

Expand and collapse the surface type by clicking the "-" and "+" in the left column.

The rows in the pavement table are sorted with the left surfaces on top and the right surfaces on the bottom. Both sides are shown from the reference alignment and outwards to either side.

Road pavement information can be defined for each road surface in surface groups 0 to 3 that are in use in the road model.

Pavement description should be defined for both sides (left and right) of the centerline.

Pavement is described by layers extending outwards from the centerline.

For the succeeding (outwards) road surfaces, use the options Inherit, Inherit Slope, and End:


If you do not wish to start the pavement with full thickness all the way from the centerline, then define the thickness to 0.000 on the layers closest to the centerline and then add the desired thickness from a specific road surface. Also consider using the 'Insert Edge' function described below.

Insert Edge

Use this option to insert a leftward or rightward slope for the pavement (superstructure) at the edge of the desired road surface

The slopes will cut the pavement if no defined pavement comes after the inserted edge.

When two opposing edges are inserted towards eachother they will remove the pavement between them regardless if the pavement is defined or not between them. If the two opposing edges are in contact with eachother they will merge and blend together.

See examples of the Edge function in use in the figures below.

Examples of Pavement descriptions

Figure 1: The Pavement dialog showing different inputs

Figure 2: Pavement (Inherit Slope)

Examples of using the Edge function

Figure 3: Pavement (Insert Edge)

Figure 4: Pavement (Insert Edge)

Pavement (Insert Edge - 2)

The slope (inserted edge) will cut the pavement. A slope in the opposite direction will be needed to continue the pavement.

Below shown are two cases; one with a single edge within the pavement and the other with two edges (opposite in direction with each other).

Figure 5: Pavement (Insert Edge - 2)

Next topic: Inner Slope