It shall be the duty of the traffic section, with such aid as may be rendered by other members of the police department, to enforce the street traffic in this city, to make arrests for traffic violations, to investigate traffic accidents, to cooperate with the City Manager and other officers of the city in the administration of the traffic law and in developing ways and means to improve traffic conditions, and to carry out those duties specially imposed upon that section by this title and related traffic ordinances of this city. (Ord. 432 § 2(part), 1982).