No person shall drive any wagon or any other vehicle over, along or across any cement or other improved sidewalk or curb, unless planking is laid thereon in such a manner as to protect such sidewalk or curb. No person shall remove any such planking, except the person by, or for whom it was laid, unless permission therefor is granted by the Board. Provided, however, that the provisions of this section shall not apply to the driving of vehicles over sidewalks and curbs, at places where cement or asphalt crossings are constructed across such sidewalks or curbs.