Roads are a sub document of Cities. They are curves on which texture and models can be applied to represent roads, highway, tracks, etc.

Road view

The Road view is divided in three parts.

Curve point list :



For a road to cross and merge into another one, there needs to be a curve point of each road snapped together.

Toolbar :

Road Setup

Roadway :

The roadway panel is divided in two parts. A road surface can either be a mesh, generated by NDunes, on which a Materials is applied, or a Soils.

Roadway Mesh:

Ground soil:

Edge setup :

Side geometries setup :

Surface markings setup :

Road surface markings are paintings that apply on the roadway mesh. A road must have a roadway mesh (which is the case by default) for markings to be visible. There are different types of markings and a road can have several markings.

We have some more parameters specific to decals that are applied over roads. Decals are useful to add various pattern-breaking effects over roads such as tire tracks, asphalt patches or manhole covers. They can greatly enhance the visuals of a roadway mesh, by making it look more realistic.


A material used for a decal must have the "decal" check box set in its material properties, as explained here: Decal material.

Bridge pillars setup :

Base geometry : The Geometries that will be used as the base of the pillar.

Body geometry : The Geometries that will be used as the column.

End geometry : The Geometries that will be used as the connection between the pillars and the road.

Pillar top vertical offset : Creates and offset at the end of the pillar. Sometimes necessary to fit the Road.