Except as otherwise provided by this Code, it shall be unlawful for any person to obstruct any of the streets, sidewalks, street right-of-way, or alleys in the City, or in any manner impede the passage of traffic thereon by sitting, standing, lying, walking, or running on the streets, sidewalks, street right-of-way, or alleys with the intent to obstruct or impede, or to allow to permit the same to be done by any building, vehicle, or other thing under such person's charge or control.