Nothing in this section shall be construed to invalidate the director's initial action on August 9, 1976, establishing all school zones at the traditional school zone boundaries defined by projecting school property lines, except when those boundaries are extended as provided in divisions (B)(1)(a) and (c) of this section.
The director may, upon request by resolution of the legislative authority of a municipal corporation, the board of trustees of a township, or a county board of developmental disabilities created pursuant to Chapter 5126. of the Revised Code, and upon submission by the municipal corporation, township, or county board of such engineering, traffic, and other information as the director considers necessary, designate a school zone on any portion of a state route lying within the municipal corporation, lying within the unincorporated territory of the township, or lying adjacent to the property of a school that is operated by such county board, that includes a crosswalk customarily used by children going to or leaving a school during recess and opening and closing hours, whenever the distance, as measured in a straight line, from the school property line nearest the crosswalk to the nearest point of the crosswalk is no more than one thousand three hundred twenty feet. Such a school zone shall include the distance encompassed by the crosswalk and extending three hundred feet on each approach direction of the state route.
Sixty miles per hour on rural expressways with traffic control signals and on all portions of rural divided highways, except as provided in divisions (B)(13) and (14) of this section;
Alteration of prima-facie limits on state routes by local authorities shall not be effective until the alteration has been approved by the director. The director may withdraw approval of any altered prima-facie speed limits whenever in the director's opinion any altered prima-facie speed becomes unreasonable, and upon such withdrawal, the altered prima-facie speed shall become ineffective and the signs relating thereto shall be immediately removed by the local authorities.
Whenever a board of township trustees finds upon the basis of criteria established by an engineering study, as defined by the director, that the prima-facie speed permitted by division (B)(5) of this section on any part of a highway under its jurisdiction that is located in a commercial or residential subdivision, except on highways or portions thereof at the entrances to which vehicular traffic from the majority of intersecting highways is required to yield the right-of-way to vehicles on such highways in obedience to stop or yield signs or traffic control signals, is greater than is reasonable and safe under the conditions found to exist at the location, the board may by resolution declare a reasonable and safe prima-facie speed limit of less than fifty-five but not less than twenty-five miles per hour at the location. An altered speed limit adopted by a board of township trustees under this division shall become effective when appropriate signs giving notice thereof are erected at the location by the township. Whenever, in the opinion of a board of township trustees, any altered prima-facie speed limit established by it under this division becomes unreasonable, it may adopt a resolution withdrawing the altered prima-facie speed, and upon such withdrawal, the altered prima-facie speed shall become ineffective, and the signs relating thereto shall be immediately removed by the township.
R.C. § 4511.21