Officers of the police department shall have the power and it shall be their duty to enforce all traffic regulations, including applicable state laws, within the city; to require all persons using the streets of the city to do so carefully, safely and with the exercise of care for the person, property and safety of others; and, in accordance with the provisions of this title, to safeguard and protect the surface and other paved portions of the streets and enforce any laws for highway safety; to regulate traffic on all the streets and roadways within the city; to investigate accidents; to cooperate with state, county and other officials in the administration of traffic laws and in developing ways and means to improve traffic conditions, and to carry out all such other duties as are specially imposed upon the department by this title. (Ord. 744, 7-28-2009)