§ 1113. Flashing signal indications. Whenever traffic is controlled by
a flashing signal used in a traffic sign or signal, only the colors red
and yellow shall be used, and said signals shall indicate and apply to
drivers of vehicles as follows:

(a) Flashing red indications. Unless to make another movement
permitted by other indications shown at the same time, vehicular traffic
facing a circular red signal or red arrow with rapid intermittent
flashes shall stop at a clearly marked stop line, but if none, then
shall stop before entering the crosswalk on the near side of the
intersection, or in the event there is no crosswalk, at the point
nearest the intersecting roadway where the driver has a view of
approaching traffic on the intersecting roadway before entering the
intersection and the right to proceed shall be subject to the rules
applicable after making a stop at a stop sign.

(b) Flashing yellow indications. Vehicular traffic facing a circular
yellow signal or yellow arrow with rapid intermittent flashes may
proceed through the intersection or past such signal only with caution.

(c) Flashing red arrows and flashing yellow arrow indications have the
same meaning as the corresponding flashing circular indications, except
that they apply only to drivers of vehicles intending to make the
movement indicated by the arrow.

(d) This section shall not apply at railroad grade crossings. Conduct
of drivers of vehicles approaching railroad grade crossings shall be
governed by the rules as set forth in section eleven hundred seventy of
this title.