It is the duty of members of the Police Department or such members as are assigned by the Police Chief 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 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 specially imposed upon said Department by this chapter and the traffic ordinances of this city.
(Rev. Code 1954 §§ 6230, 6250)
It shall be the general duty of the 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 investigation 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 this code.
(Rev. Code 1954 § 6231)
Unless the limitations of this section are specifically excepted, the authority granted to the Traffic Engineer shall be limited as follows, notwithstanding any provisions to the contrary in the remainder of this title. Before erecting, establishing, installing or removing any traffic-control sign, signal, marker or device of any nature whatsoever, the Traffic Engineer must obtain the written approval of the Public Works Director; provided, however, that if any ordinance or a prior resolution of the Council directs that said traffic-control sign, signal, marker or device be so installed or removed, or if said sign, signal, marker or device is necessary to the efficiency of any traffic regulation already provided for by ordinance, resolution or the State Vehicle Code, or if said sign, signal, marker or device is merely a notice of an existing regulation and does not amount to the establishment of a new regulation, or discontinuance of an existing regulation, the authority of the Traffic Engineer shall not be so limited.
(Rev. Code 1954 § 6231; O3083)
Officers of the Police Department or such officers as are assigned by the Police Chief are authorized to direct all traffic by voice, hand or signal in conformance with traffic laws, provided that in the event of a fire or other emergency or to expedite traffic or to safeguard pedestrians, officers of the Police Department may direct traffic as conditions may require, notwithstanding the provisions of the traffic laws.
(Rev. Code 1954 § 6250)
No person other than an officer of the Police Department or a person deputized by the Police Chief or 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 directed by order of a public body or official having jurisdiction.
(Rev. Code 1954 § 6253)
The Traffic Engineer may also place and maintain such additional traffic-control devices as he or she may deem necessary to regulate traffic or to guide or warn traffic, but he or she shall make such determination only upon the basis of Traffic Engineering principles and traffic investigations and in accordance with such standards, limitations and rules as may be set forth in this title or as may be determined by ordinance or resolution of the legislative body of this city.
(Rev. Code 1954 § 6270)
No provision of the State Vehicle Code or of this title for which signs are required shall be enforced against an alleged violator unless appropriate signs are in place and sufficiently legible to be seen by an ordinarily observant person, giving notice of such provision of the traffic laws.
(Rev. Code 1954 § 6271)
The Traffic Engineer is directed to install and maintain official traffic-control signals at those intersections and other places where traffic conditions are such as to require that the flow of traffic be alternately interrupted and released in order to prevent or relieve traffic congestion or to protect life or property from exceptional hazard.
(Rev. Code 1954 § 6273)
The Traffic Engineer is authorized to regulate the timing of traffic signals so as to permit the movement of traffic in an orderly and safe manner at speeds slightly at variance from the speeds otherwise applicable within the district or at intersections, and is hereby authorized to erect appropriate signs giving notice thereof.
(O2016-15, 11/15/16)
The Traffic Engineer shall ascertain and determine the locations where traffic-control signals are required by resort to field observations, traffic counts and other traffic information as may be pertinent and his or her determinations therefrom shall be made in accordance with those Traffic Engineering and safety standards and instructions set forth in the maintenance manual issued by the Division of Highways of the State Department of Public Works.
(Rev. Code 1954 § 6273)
Whenever the Traffic Engineer installs and maintains an official traffic-control signal at any intersection, he or she shall likewise erect and maintain at such intersection street name signs visible to the principal flow of traffic unless such street name signs have previously been placed and are maintained at any said intersection.
(Rev. Code 1954 § 6273)
The Traffic Engineer is authorized to mark center lines and lane lines upon the surface of the roadway to indicate the course to be traveled by vehicles and may place signs temporarily designating lanes to be used by traffic moving in a particular direction, regardless of the center line of the highway.
(Rev. Code 1954 § 6274)
Whenever the State Department of Public Works determines by resolution and designates a distinctive roadway marking which shall indicate no driving over such marking, the Traffic Engineer is authorized to designate by such markings those streets or parts of streets where the volume of traffic or the vertical or other curvature of the roadway renders it hazardous to drive on the left side of such marking or signs and markings. Such markings or signs and markings shall have the same effect as similar markings placed by the State Department of Public Works pursuant to provisions of the State Vehicle Code.
(Rev. Code 1954 § 6275)
The Traffic Engineer is authorized to remove, relocate or discontinue the operation of any traffic-control device not specifically required by state law or this chapter whenever he or she shall determine in any particular case that the conditions which warranted or required the installation no longer exist or obtain.
(Rev. Code 1954 § 6276)
The Traffic Engineer shall determine the hours and days during which any traffic-control device shall be in operation and effect, except in those cases where said hours or days are specified by ordinance or are specifically designated by the Council by resolution.
(Rev. Code 1954 § 6277)