Ohio Revised Code Title XXIX. Crimes Procedure § 2903.081

(A) As used in this section:

(B) The director of transportation, board of county commissioners, or board of township trustees shall cause signs to be erected in construction zones notifying motorists of the prohibitions set forth in sections 2903.06 and 2903.08 of the Revised Code regarding the death of or injury to any person in the construction zone as a proximate result of a reckless operation offense or speeding offense in the construction zone. The prohibitions set forth in divisions (A)(2)(b) and (3)(b) of section 2903.06 and divisions (A)(2)(a) and (3) of section 2903.08 of the Revised Code apply to persons who commit a reckless operation offense or speeding offense in a particular construction zone only when signs of that nature are erected in that construction zone in accordance with the guidelines and design specifications established by the director under section 5501.27 of the Revised Code. The failure to erect signs of that nature in a particular construction zone in accordance with those guidelines and design specifications does not limit or affect the application of division (A)(1), (A)(2)(a), (A)(3)(a), or (A)(4) of section 2903.06 or division (A)(1) or (2)(b) of section 2903.08 of the Revised Code in that construction zone or the prosecution of any person who violates either of those divisions in that construction zone.