What are the functions of turn signals?
4 Answers
Turn signals can alert pedestrians and other vehicles that the car is about to turn or change lanes. They serve to inform pedestrians and other vehicles of the current vehicle's intention to turn. When both left and right turn signals flash simultaneously, it indicates an emergency situation, alerting other vehicles to be cautious. The light of turn signals is yellow. It is essential to use turn signals when starting the vehicle, changing lanes, or making turns. Information about turn signals is as follows: 1. The turn signal bulb uses a xenon tube, controlled by a single-chip microcomputer circuit, with left and right alternating flashes working continuously. 2. Turn signals use a flasher to achieve the blinking effect. The timing for turning them on should be well managed; they should be activated about 100 meters before the turn. If changing lanes, they should be turned on even earlier.
I've been driving for twenty years, and the most crucial function of turn signals is to inform others which way you're turning or changing lanes. This allows others to slow down in advance to avoid collisions. During rush hour traffic in the city, suddenly changing lanes without signaling can easily lead to accidents—I've witnessed several near-miss rear-end collisions. Another important role they play is serving as hazard warning signals when your car breaks down or is involved in an accident, protecting both yourself and others. Some older cars have turn signal bulbs that tend to burn out easily, so I recommend regularly checking the wiring—for example, looking for oxidation or rust at contact points. In cold or foggy weather, keeping the lights flashing increases visibility and prevents accidents caused by poor visibility. Safe driving isn't complete without this small but vital component—making it a habitual practice can be a lifesaver.
When I was learning to drive, the instructor repeatedly emphasized that the basic function of turn signals is to indicate the direction of the vehicle's turn, and strict adherence is the key to preventing accidents. The law mandates the use of turn signals, and violating rules such as failing to signal when turning may result in fines and penalty points. From changing lanes to parking in a garage, it's essential to signal in advance to alert other drivers. Modern car models are equipped with automatic turn signal cancellation systems, which turn off the signals automatically after completing a turn for convenience. In terms of maintenance, it's important to note that bulbs have a limited lifespan; they should be replaced promptly when broken to avoid hazards at night. On highways, lights serve as a communication bridge, making driving more orderly and smooth.
The turn signal has two core functions: to show others your intention to turn left/right or change lanes, ensuring smooth traffic flow. As a car owner, I've found it can also enhance safety by serving as hazard lights during emergency stops or in foggy conditions. Technically, its internal flashing frequency is controlled by circuits and relays, with LED lights being more energy-efficient and durable. I regularly check if it's functioning properly, as minor details can impact major safety.
