(a) A driver facing a steady circular yellow or yellow arrow signal is, by that signal, warned that the related green movement is ending or that a red indication will be shown immediately thereafter.
(b) A pedestrian facing a steady circular yellow or a yellow arrow signal, unless otherwise directed by a pedestrian control signal as provided in Section 21456, is, by that signal, warned that there is insufficient time to cross the roadway and shall not enter the roadway.
(Amended by Stats. 1986, Ch. 256, Sec. 1.)