538 A.2d 992 Susan A. Cressman, Appellant v. Commonwealth of Pennsylvania, Department of Transportation and L. Christine Stafford, Appellees. Commonwealth Court of Pennsylvania.Argued November 17, 1987. March 10, 1988. Tort — Immunity of Department of Transportation — Judicial Code, 42 Pa, C. S. § 8522 — Potholes — Notice — Exclusion of evidence — Relevance. […]