Which way is not allowed to turn when the red light is on?

[GemmaFitz]

Left turns are not allowed. Traffic lights: Refers to traffic signal lights that direct traffic operation, generally composed of red, green, and yellow lights. A red light indicates prohibition of passage, a green light indicates permission to pass, and a yellow light indicates a warning. Regarding traffic regulations for left turns: Traffic regulations stipulate that in the absence of traffic lights or traffic police command, right-turning vehicles must yield to left-turning vehicles. When motor vehicles pass through intersections without traffic signal control or traffic police command, right-turning motor vehicles from the opposite direction must yield to left-turning vehicles. It is reasonable that only right-turning vehicles from the opposite direction yield to left-turning vehicles. Because right turns are small turns, stopping at the roadside does not affect the normal driving of other vehicles. Left turns are large turns. If yielding at the intersection, the vehicle would stop in the middle of the intersection, affecting the normal driving of vehicles from the other three directions.