Except as otherwise provided by this subchapter, it shall be unlawful for any person to drive, operate, or move, or for the owner to cause or permit to be driven or moved upon any road or highway within the state, any vehicle, or combination of vehicles, of a size or weight exceeding the limitations stated in this subchapter, or to transport over any road or highway within this state, whether paved or otherwise, any load or loads exceeding the weights or dimensions prescribed by this subchapter.