How to Use Vehicle Lights Before Entering a Two-Way Tunnel
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When entering a two-way tunnel, vehicles should turn on their low-beam headlights and avoid using high beams. Below are detailed instructions on how to use vehicle lights when entering a two-way tunnel: 1. If the tunnel itself is unlit, drivers may adjust their lights accordingly, but must switch to low beams when approaching oncoming vehicles. When driving into a tunnel, the sudden transition from bright to dark conditions causes a temporary decline in human vision, requiring approximately 7 to 8 seconds for adaptation. Therefore, it is essential to reduce speed before entering the tunnel. 2. When passing through a typical single-lane tunnel, observe whether there are oncoming vehicles, and turn on both front and rear lights. Generally, honking should be avoided. The purpose of turning on the lights is to indicate the vehicle's position, maintain safe following distances, and prevent rear-end collisions. When driving in a dual-lane tunnel, adhere to traffic rules by keeping to the right lane. Lane changes within the tunnel are prohibited, and overtaking should never be attempted inside the tunnel.
When driving through bidirectional tunnels, it's essential to remember to turn on your vehicle's headlights or low beams before entering. The lighting inside tunnels changes dramatically, and our eyes need time to adjust from bright to dark conditions. If you don't turn on your lights in advance, you might not see the road clearly and could potentially hit something. More importantly, there will be oncoming traffic in bidirectional tunnels, and having your lights on allows other drivers to spot you earlier, helping to prevent accidents. Make it a habit to check your light switch as soon as you see the tunnel entrance sign, ensuring your lights are on before entering. Don't underestimate this simple action—many accidents occur due to poor visibility, especially during rainy weather or at dusk. Turning on your lights is a fundamental safety measure. I believe every driver should automatically perform this action to protect both themselves and others.
