What are the rules for making a left turn at a traffic light intersection?

[DelGabriela]

The rules for making a left turn at a traffic light intersection are: If there is a dedicated arrow signal, you must follow its indication; if there is no dedicated arrow signal, left-turning vehicles can turn left when the straight-through light is green, provided they do not interfere with oncoming straight-moving vehicles. U-turns are permitted unless there is a 'No U-turn' or 'No Left Turn and U-turn' sign. According to regulations, motor vehicles are prohibited from making U-turns at locations with 'No U-turn' or 'No Left Turn' signs and markings, as well as at railway crossings, pedestrian crossings, bridges, sharp curves, steep slopes, tunnels, and other hazardous sections. The time and process required for completing both straight and left turns in two directions at an intersection are referred to as the phase, which is determined based on calculated traffic flow at each intersection.