§ 331.45 STOP SIGNS ON PRIVATE ROADS AND DRIVEWAYS.
   (a)   The owner of a private road or driveway located in a private residential area containing 20 or more dwelling units may erect stop signs at places where the road or driveway intersects with another private road or driveway in the residential area, in compliance with all of the following requirements:
      (1)   The stop sign is sufficiently legible to be seen by an ordinarily observant person and meets the specifications of and is placed in accordance with the Manual adopted by the Department of Transportation pursuant to R.C. § 4511.09.
      (2)   The owner has posted a sign at the entrance of the private road or driveway that is in plain view and clearly informs persons entering the road or driveway that they are entering private property, stop signs have been posted and must be obeyed, and the signs are enforceable by law enforcement officers under state law. The sign required by this division, where appropriate, may be incorporated with the sign required by R.C. § 4511.211(A)(2), or any substantially equivalent municipal ordinance.
   (b)   R.C. §§ 4511.43(A) and 4511.46, or any substantially equivalent municipal ordinance, shall be deemed to apply to the driver of a vehicle on a private road or driveway where a stop sign is placed in accordance with division (a) of this section and to a pedestrian crossing such a road or driveway at an intersection where a stop sign is in place.
   (c)   When a stop sign is placed in accordance with division (a) of this section, any law enforcement officer may apprehend a person found violating the stop sign and may stop and charge the person with violating the stop sign.
   (d)   As used in this section, and for the purpose of applying R.C. §§ 4511.43(A) and 4511.46, or any substantially equivalent municipal ordinance, to conduct under this section, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
      (1)   INTERSECTION.
         A.   The area embraced within the prolongation or connection of the lateral curb lines, or, if none, then the lateral boundary lines of the roadways of two private roads or driveways which join one another at, or approximately at, right angles, or the area within which vehicles traveling upon different private roads or driveways joining at any other angle may come in conflict.
         B.   Where a private road or driveway includes two roadways 30 feet or more apart, then every crossing of two roadways of the private roads or driveways shall be regarded as a separate intersection.
      (2)   OWNER and PRIVATE RESIDENTIAL AREA CONTAINING 20 OR MORE DWELLING UNITS. Have the same meanings as in R.C. § 4511.211.
      (3)   ROADWAY. That portion of a private road or driveway improved, designed or ordinarily used for vehicular travel, except the berm or shoulder. If a private road or driveway includes two or more separate roadways, the term ROADWAY means any such roadway separately but not all such roadways collectively.
   (e)   Except as otherwise provided in this division, whoever violates this section is guilty of a minor misdemeanor. If, within one year of the offense, the offender previously has been convicted of or pleaded guilty to one predicate motor vehicle or traffic offense, whoever violates this section is guilty of a misdemeanor of the fourth degree. If, within one year of the offense, the offender previously has been convicted of two or more predicate motor vehicle or traffic offenses, whoever violates this section is guilty of a misdemeanor of the third degree.
(R.C. § 4511.432)