Turn on red is a principle of law permitting vehicles at a traffic light showing a red signal to turn into the direction of traffic nearer to them (almost always after a complete stop, depending on the jurisdiction) when the way is clear, without having to wait for a green signal.
North American traffic engineers first introduced this rule as a fuel savings measure in the 1970s, despite detrimental effects to the safety of pedestrians.[4] Canada and The United States are some of few major countries where turning on red is generally allowed.[5] Amid a push to reduce pedestrian fatalities and make cities safer for pedestrians and bicyclists, some American localities have in recent years implemented bans on turning on red.[6][7]
Vehicle and Traffic § 1111. 2. Except in a city having a population of one million or more, unless a sign is in place prohibiting such turn:
Vehicle and Traffic § 1111. 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.