Officers of the police department and such officers as are assigned by the chief of police are authorized to direct all traffic by voice, hand, audible or other signal in conformance with traffic laws, except that in the event of a fire or other emergency or to expedite traffic or to safeguard pedestrians, officers of the police department or members of the fire department may direct traffic as conditions may require, notwithstanding the provisions to the contrary contained in this ordinance.
(Prior code § 3410 § 3; Ord. 1870 § 3, 1978)
No person other than an officer of the police department or members of the fire department, or a person authorized by the chief of police, or a person authorized by law shall direct or attempt to direct traffic by voice, hand, or other signal; except, that persons may operate, when and as herein provided, any mechanical pushbutton signal erected by order of the city traffic engineer.
(Prior code § 3410 § 3.1)
Every person riding a bicycle or riding or driving an animal upon a highway has all of the rights and shall be subject to all of the duties applicable to the driver of a vehicle in this chapter, except those provisions which by their very nature can have no application.
(Prior code § 3410 § 3.3)
The provisions of this chapter shall apply to the operator of any vehicle owned by or used in the service of the United States Government, this state, any county or city, and it is unlawful for any said operator to violate any of the provisions of this chapter except as otherwise permitted by this chapter or by the Vehicle Code.
(Prior code § 3410 § 3.5)
A. 
The provisions of this chapter regulating the operation, parking and standing of vehicles shall not apply to vehicles operated by the police or fire department, any public ambulance, or any public utility vehicle or private ambulance which public utility vehicle or private ambulance has qualified as an authorized emergency vehicle, when any vehicle mentioned in this section is operated in the manner specified by the Vehicle Code in response to an emergency call.
B. 
The foregoing exemptions shall not, however, relieve the operator of any such vehicle from the obligation to exercise due care for the safety of others or the consequences of his/her wilful disregard of the safety of others.
C. 
The provisions of this chapter regulating the parking or standing of vehicles shall not apply to any vehicle of a city department or public utility while necessarily in use for construction or repair work, or any vehicle owned or operated by the United States Postal Service while in use for the collection, transportation or delivery of United States Mail.
(Prior code § 3410 § 3.6)
Any regularly employed and salaried officer of the police department of the city may remove or cause to be removed:
A. 
Any vehicle that has been parked or left standing upon a street or highway for seventy-two or more consecutive hours;
B. 
Any vehicle which is parked or left standing upon a street or highway between the hours of seven a.m. and seven p.m. when such parking or standing is prohibited by ordinance or resolution of the city and signs are posted giving notice of such removal;
C. 
Any vehicle which is parked or left standing upon a street or highway where the use of such street or highway or a portion thereof is necessary for the cleaning, repair or construction of the street or highway, or for the installation of underground utilities, or where the use of the street or highway or any portion thereof is authorized for a purpose other than the normal flow of traffic, or where the use of the street or highway or any portion thereof is necessary for the movement of equipment, articles or structures of unusual size, and the parking of such vehicle would prohibit or interfere with such use or movement; provided, that signs giving notice that such vehicle may be removed are erected or placed at least twenty-four hours prior to the removal.
(Prior code § 3410 § 3.8)