(a) Green indications: 1. Traffic, except pedestrians, facing a steady circular green signal may proceed straight through or turn right or left unless a sign at such place prohibits either such turn. Such traffic, including when turning right or left, shall yield the right of way to other traffic lawfully within the intersection or an adjacent crosswalk at the time such signal is exhibited. 2. Traffic, except pedestrians, facing a steady green arrow signal may cautiously enter the intersection only to make the movement indicated by such arrow, or such other movement as is permitted by other indications shown at the same time, except that a U-Turn may be made by traffic facing a left green arrow signal unless a sign prohibits such U-Turn or such U-Turn is in violation of any other provision of law. Such traffic shall yield the right of way to other traffic lawfully within the intersection or an adjacent cross walk at the time such signal is exhibited. 3. Unless otherwise directed by a pedestrian-control signal as provided in section eleven hundred twelve, pedestrians facing any steady green signal, except when the sole green signal is a turn arrow, may proceed across the roadway within any marked or unmarked crosswalk.

(b) Yellow indications: 1. Traffic, except pedestrians, facing a steady circular yellow signal may enter the intersection; however, said traffic is thereby warned that the related green movement is being terminated or that a red indication will be exhibited immediately thereafter. 2. Traffic, except pedestrians, facing a steady yellow arrow signal may cautiously enter the intersection only to complete the movement indicated by such arrow or make such other movement as is permitted by other indications shown at the same time; however, said traffic is thereby warned that the related green arrow movement is being terminated or that a red indication will be exhibited immediately thereafter. 3. Unless otherwise directed by a pedestrian-control signal as provided in section eleven hundred twelve, pedestrians facing any steady yellow signal are thereby advised that there is insufficient time to cross the roadway before a red indication is shown and no pedestrian shall then start to cross the roadway.

(d) Red indications: 1. Traffic, except pedestrians, facing a steady circular red signal, unless to make such other movement as is permitted by other indications shown at the same time, 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 the approaching traffic on the intersecting roadway before entering the intersection and shall remain standing until an indication to proceed is shown except as provided in paragraph two of this subdivision. 2. Except in a city having a population of one million or more, unless a sign is in place prohibiting such turn: a. Traffic facing a steady circular red signal may cautiously enter the intersection to make a right turn after stopping as required by paragraph one of this subdivision, except that right turning traffic is not required to stop when a steady right green arrow signal is shown at the same time. Such traffic shall yield the right-of-way to pedestrians within a marked or unmarked crosswalk at the intersection and to other traffic lawfully using the intersection; b. Traffic, while on a one-way roadway, facing a steady red signal may cautiously enter the intersection to make a left turn onto a one-way roadway after stopping as required by paragraph one of this subdivision. Such traffic shall yield the right-of-way to pedestrians within a marked or unmarked crosswalk at the intersection and to other traffic lawfully using the intersection. c. On or after the effective date of this subparagraph, the sign which prohibits such turn shall be prominently displayed from all newly installed traffic signals where possible. Notwithstanding any other provision of law, any city having a population of one million or more, is hereby authorized and empowered to adopt a local law authorizing subparagraph a or b of this paragraph to be applicable within such city. Upon the adoption of such local law the exception provided herein for a city having a population of one million or more shall no longer be applicable within such city. 3. Traffic, except pedestrians, facing a steady red arrow signal may not enter the intersection to make the movement indicated by such arrow and, unless entering the intersection to make such other movement as is permitted by other indications shown at the same time, 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 the approaching traffic on the intersecting roadway before entering the intersection and shall remain standing until an indication to proceed is shown. 4. Unless otherwise directed by a pedestrian-control signal as provided in section eleven hundred twelve, pedestrians facing any steady red signal shall not enter the roadway. 5. Notwithstanding the provision of paragraph two of this subdivision, no school bus, while transporting pupils for any purpose, shall be permitted to proceed when facing a steady red signal.

(e) Traffic shall obey signs requiring obedience to traffic-control signals at intersections other than those at which such signals are located. No intersection not controlled by such signs prior to the effective date of this section shall hereafter be made subject to such method of control and no ordinance, order, rule or regulation requiring such obedience shall hereafter be adopted.

(f) In the event an official traffic-control signal is erected and maintained at a place other than an intersection, the provisions of this section shall be applicable except as to those provisions which by their nature can have no application. Any stop required shall be made at a sign or marking on the pavement indicating where the stop shall be made, but in the absence of any such sign or marking the stop shall be made at the signal.