What is the traffic light sign?

[AylaFitz]

The traffic light sign has three types: the red light indicates prohibition of passage, the green light indicates permission to pass, and the yellow light serves as a warning. Initially, there were only red and green lights, but after improvements, a yellow light was added. Red Light: Mainly includes three types: Command light signal: When the red light is on, vehicles and pedestrians are not allowed to pass; vehicles must stop behind the stop line, and pedestrians must wait at the roadside of the crosswalk; Lane light signal: Generally installed above lanes that require separate command, it only directs vehicles traveling in that lane, while vehicles and pedestrians in other lanes still follow the regular signal; Crosswalk light signal: When the red light is on, pedestrians are not allowed to enter the crosswalk. Green Light: Mainly includes three types: Command light signal: When the green light is on, vehicles and pedestrians are allowed to pass, whether motorized or non-motorized; all facing the green light signal can proceed straight or turn left or right. Vehicles entering the intersection during the green light should yield to vehicles already in the intersection and pedestrians in the crosswalk. Lane light signal: When the green arrow light is on, vehicles are allowed to proceed in the direction indicated by the arrow. The green arrow light refers to a traffic command signal light within the green light that includes left-turn, straight, and right-turn directional arrows. Crosswalk light signal: When the green light is on, pedestrians are allowed to cross the crosswalk; when the green light flashes, pedestrians are not allowed to enter the crosswalk, but those already in the crosswalk may continue to cross. Yellow Light: Mainly includes two types: When the yellow light is on: Vehicles and pedestrians are not allowed to pass, but vehicles that have already crossed the stop line and pedestrians already in the crosswalk may continue to pass; When the yellow light flashes: Vehicles and pedestrians must pass under the principle of ensuring safety.

[SanPaisley]

The most dreaded thing while driving is negligence. That yellow triangular sign with a black border and three circles inside is the traffic light warning sign. Every time I drive through unfamiliar areas and see this sign, I know I need to slow down immediately because there's definitely a signal-controlled intersection about 300 meters ahead. It's manageable in the city, but on national highways or near highway exits, this sign often appears alongside speed reduction markings. I remember one late-night long-distance drive when it helped me slow down 300 meters in advance, avoiding running a red light. Now it's a habit—whenever I see the triangular sign, I glance at the dashboard and make sure my speed doesn’t exceed 60 km/h. After all, safety is more important than time, and intersections often have cameras catching red-light runners.

[OManuel]

When coaching novice drivers, I always emphasize paying attention to traffic signal warning signs. The standard warning sign is a yellow triangular board with black patterns, featuring three concentric circles forming an inverted triangle representing red, yellow, and green traffic lights. It typically appears 100 to 300 meters before signal-controlled intersections, more commonly on national highways than in urban areas. A frequent mistake beginners make is overlooking this sign, realizing too late to brake when they finally see the red light. Therefore, whenever we spot this triangular sign, I instruct trainees to ease off the accelerator and maintain speed below 40 km/h. After all, anticipating early is far safer than slamming brakes – 80% of rear-end collisions at intersections result from failing to decelerate in advance.

[DiReese]

Having driven trucks for over 20 years, I'm all too familiar with that yellow triangular sign with three circles. It's the advance warning sign for traffic signals, appearing before intersections. Unlike smaller vehicles, trucks aren't as agile, so spotting this sign means you must start slowing down at least 300 meters in advance. Especially during rainy days or at night, the reflective markings stand out particularly well. On long hauls, I dread encountering sudden traffic signals on unfamiliar routes - this warning sign at least gives me time to prepare. Remember, these signs often appear where speed bumps are installed; not paying attention could damage your cargo. Nowadays, my habit is to ease off the gas immediately when I see this sign - safety always comes before making good time.

[Valeria]

When riding an electric bike, I realized how crucial that yellow triangular sign is. The pattern consists of three black circles forming a traffic light shape, indicating an upcoming signalized intersection. It's commonly seen on motor vehicle lanes, but occasionally installed on non-motorized lanes too. Many people don't understand the distance implication of this sign, which is typically placed 150-200 meters before the intersection. Whenever I spot this sign, I release the throttle to coast, as I might need to stop anytime. Statistics show 30% of intersection accidents are caused by failing to decelerate in advance. So whether driving or cycling, when you see this sign, you should naturally lift your foot to prepare for braking, allowing the vehicle to slow down smoothly.