(a) 
Whenever bicycle traffic is controlled by traffic control signals showing colored lighted bicycle symbols, only the colors green, yellow and red shall be used, and those lights shall apply to bicyclists and pedestrians as provided in this article. At those intersections bicyclists shall obey such traffic control signals and no others. Any bicyclist eighteen years of age or older who fails to obey such traffic control signals shall be guilty of an infraction, punishable as provided by California Government Code Section 36900. Any bicyclist under the age of eighteen years who fails to obey such traffic control signals shall be subject to the provisions of Section 6.01.040 of the Davis Municipal Code.
(b) 
At signalized intersections controlled in part by bicycle signals, bicyclists shall make their approach to the intersection from a bike lane or bike path. The city traffic engineer may authorize placement of signs on the approaches to these intersections directing bicycle movements.
(Ord. 1666 § 2)
(a) 
A bicyclist facing a green bicycle signal shall proceed straight through, or turn right, or left, or make a U-turn unless a sign prohibits a U-turn. Any bicyclist, including one turning, shall yield the right-of-way to other traffic and to pedestrians lawfully within the intersection or an adjacent crosswalk.
(b) 
A bicyclist facing a green bicycle signal shown in conjunction with a green arrow shall enter the intersection only to make the movement indicated by that green arrow or any other movement that is permitted by other indications shown at the same time. A bicyclist shall yield the right-of-way to pedestrians lawfully within the intersection or an adjacent crosswalk.
(c) 
A pedestrian facing a green bicycle signal, unless prohibited by sign or otherwise directed by a pedestrian control signal as provided in Section 21456 of the California Vehicle Code, may proceed across the roadway within any marked or unmarked crosswalk, but shall yield the right-of-way to traffic lawfully within the intersection at the time that signal is first shown.
(Ord. 1666 § 2)
(a) 
A bicyclist facing a yellow bicycle signal is warned that the green bicycle signal is ending or that a red bicycle signal will be shown immediately.
(b) 
A pedestrian facing a yellow bicycle signal, unless otherwise directed by a pedestrian control signal as provided in Section 21456 of the California Vehicle Code, is, by that signal, warned that there is insufficient time to cross the roadway and shall not enter the roadway.
(Ord. 1666 §2)
(a) 
A bicyclist facing a steady red bicycle signal shall stop at a marked limit line, but if none, before entering the crosswalk on the near side of the intersection, or if none, then before entering the intersection, and shall remain stopped until an indication to proceed is shown, except as provided in subsection (b) of this section.
(b) 
Except when a sign is in place prohibiting a turn, a bicyclist, after stopping as required by subsection (a), facing a steady red bicycle signal, may turn right, or turn left from a one-way street onto a one-way street. A bicyclist making such a turn shall yield the right-of-way to pedestrians lawfully within an adjacent crosswalk and to traffic lawfully using the intersection.
(c) 
A bicyclist facing any color of bicycle signal shown in conjunction with a red arrow shall not enter the intersection to make the movement indicated by the red arrow and, unless entering the intersection to make a movement permitted by another signal, shall stop at a clearly marked limit line, but if none, before entering the crosswalk on the near side of the intersection, or if none, then before entering the intersection, and shall remain stopped until an indication permitting movement is shown.
(d) 
Unless otherwise directed by a pedestrian control signal as provided in Section 21456 of the California Vehicle Code, a pedestrian facing a red bicycle signal shall not enter the roadway.
(Ord. 1666 § 2)
A driver of any vehicle, other than a bicycle, facing a bicycle signal shall be controlled only by the circular or arrow traffic control signals at the intersection pursuant to Sections 21450 through 21454 of the California Vehicle Code.
(Ord. 1666 § 2)