Section 19. The General Assembly shall not pass any local or special law relating to fences; the straying of live stock; ditches; the creation or changing the boundaries of school districts; or the laying out, opening, alteration, maintenance or vacation, in whole or in part of any road, highway, street, lane or alley; provided, however, that the General Assembly may by a vote of two-thirds of all the members elected to each House pass laws relating to the laying out, opening, alteration or maintenance of any road or highway which forms a continuous road or highway extending through at least a portion of the three counties of the State.

No road, highway or street, intended to be dedicated to public use and maintained at public expense, shall be constructed except in conformance with standards adopted by the agency charged with construction, reconstruction or maintenance of such road, highway, or street. Any road or street, constructed solely for private use, shall only be maintained at State expense after it has been constructed or reconstructed according to the standards established by the agency charged with the duty of maintaining such roads or streets.