Ohio Rev. Code Ann. § 4961.31

Two or more railroad companies whose railroads are connected and not competing may enter into any arrangement for their common benefit consistent with and calculated to promote the objects for which they were created. Railroads running or to be constructed to the tracks and property of a union depot company or terminal company, the use of which is enjoyed by either of such companies, or to the tracks of another railroad over which either of said companies has a right to operate by favor of a lease or any trackage agreement shall be held to be connected under this section.