Oregon Revised Statutes Oregon Vehicle Code § 824.208

(1) The power to fix and regulate the speed of railway trains and to regulate the sounding of railway train warning devices at public railroad-highway crossings is vested exclusively in the state.

(2) Upon petition of any public authority in interest or of any railroad or upon the Department of Transportation's own motion, the Department of Transportation shall, after due investigation and hearing, unless a hearing is not required under ORS 824.214 enter an order fixing and regulating the speed of railway trains or regulating the sounding of railway train warning devices.

(3) The speed limits fixed by the department shall be maximum speed limits and shall be commensurate with the hazards presented and the practical operation of the trains.