OptionalarrowsOne-way arrows drawn on roads, in roads.
OptionalexitMotorway exit number badges, in roadLabels.
OptionalrestrictedDashed marking of roads with restricted access, in roads.
OptionalunderRoads under construction, in roads.
The road parts BaseMapModule shows or hides on their own, finer than the layer groups. TomTom's style designers chose this granularity as toggle-worthy. An unset part is drawn as the style ships it.