I am really not clear on what you are trying to say in some instances, but here is what I presume: Surfaced road/hard surface — a roa d with bituminous , concrete, malleolar, clinker or paved surface or of slabs or stone / concrete, if the surface exceeds 20 m in length ; other roads are dirt roads. Carriageway — a roadway with lanes sufficient to move one line of multi-track (4-wheele d) vehicles, marked or unmarked with traffic signs. Special attention — an increase in attention and driver/operator behavioral adaptation to the changing conditions on the road, sufficient to enable suitably rapid response.
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