(a) General rule.--The Department of Transportation on State-designated highways and local authorities on any highway, road or street within its jurisdiction may designate any highway, road or street within its jurisdiction as a snowmobile road, an ATV road, or both, and may, in its discretion, determine whether such road shall be closed to vehicular traffic or whether snowmobiles and ATV's may share this designated road with vehicular traffic.
(b) Posting notices.--Adequate notices of such designation and determination shall be sufficiently and prominently displayed.
(c) Liability.--There shall be no liability imposed on the Department of Transportation or any other State agency or any political subdivision of this Commonwealth as a result of designating any highway, road or street as a snowmobile road or an ATV road as provided in subsection (a).