"Intersection" means:
(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 highways which join one another at, or approximately at, right angles, or the area within which vehicles traveling upon different highways joining at any other angle may come in conflict.
(b) Where a highway includes two roadways 30 feet or more apart, then every crossing of each roadway of the divided highway by an intersecting highway shall be regarded as a separate intersection. If an intersecting highway also includes two roadways 30 feet or more apart, then every crossing of two roadways of the highways shall be regarded as a separate intersection.
(c) The junction of an alley with a street or highway, or with another alley, shall not constitute an intersection.
(ORC 4511.01(KK))