...resulting from the vehicle leaving the roadway and coming in contact with an artificial condition adjacent to the roadway. In Boylan, the court relied, in part, on section 368 of the Restatement (Second) of Torts when..., 726, 423 N.E.2d 519, 523.) As stated in comment g of section 368 of the Restatement (Second) of Torts, "[t]he distinction is thus...trial court's granting of summary judgment for the defendant and, in applying section 368 of the Restatement (Second) of Torts, regarded the swerving off of the public...