Aberdeenshire Council is calling for motorists to be vigilant and be aware of loose chips on “newly dressed roads”.
Work begins on Monday to improve damaged carriageways, with a lengthy list of sites on the council’s website.
The council says the technique of laying hot bitumen, followed by chippings, gives better grip to vehicles.
But it means drivers need to take extra care when passing over treated sections as there is a short-term heightened risk of skidding.
The A950, A952, A981 and A982 are among the routes that will be affected by the works until August.
Aberdeenshire Council’s head of roads and landscape services Philip McKay said: “Warning signs advising of surface dressing works are always erected prior to work starting, and remain in place for several days after the work has been carried out.”