It shall be the duty of the police department to enforce the street traffic regulations of this City and all of the state vehicle laws applicable to street traffic in this City; to make arrests for traffic violations, to investigate traffic accidents; and to cooperate with the City Traffic Engineer and other officers of the City in the administration of the traffic laws and in developing ways and means to improve traffic conditions and to carry out those duties especially imposed upon the police department by this title.
(Prior code § 13.2)
Whenever the accidents at any particular location become numerous, the police department shall cooperate with the City Traffic Engineer in conducting studies of such accidents and determining remedial measures.
(Prior code § 13.3)
The police department shall maintain a suitable system of filing traffic accident reports. Such reports shall be available for the use and information of the City Traffic Engineer.
(Prior code § 13.4)
The police department shall annually prepare a traffic report which shall be filed with the Council. Such a report shall contain information on traffic matters in this City as follows:
A. 
The number of traffic accidents, the number of persons killed, the number of persons injured and other pertinent traffic accident data;
B. 
The number of traffic accidents investigated and other pertinent data on the safety activities of the police;
C. 
The plans and recommendations of the department for future traffic safety activities.
(Prior code § 13.5)
The office of City Traffic Engineer is established. The City Engineer shall serve as the City Traffic Engineer and he or she shall exercise the powers and duties with respect to traffic as provided in this title. For purposes of this title, the terms "City Traffic Engineer" and "City Engineer" are one and the same. All references in this title regarding the City Traffic Engineer shall mean the City Engineer.
(14-07)
It shall be the general duty of the City Traffic Engineer to determine the installation and proper timing and maintenance of traffic-control devices and signals; to conduct engineering analyses of traffic accidents and to devise remedial measures; to conduct engineering and traffic investigations of traffic conditions, and to cooperate with other City officials in the development of ways and means to improve traffic conditions and to carry out the additional powers and duties imposed by ordinances of this City. Whenever by the provisions of this title a power is granted to the City Traffic Engineer, or a duty imposed upon him or her, the power may be exercised or the duty performed by his or her deputy or by a person authorized in writing by him or her.
(Prior code § 13.7)