Turn on the Lights or Honk the Horn First When Entering a Tunnel?

[VanJeffrey]

Turn on the lights first when entering a tunnel. Do not use high beams: Most tunnels nowadays are equipped with lighting, which, although not very bright, can be easily managed with low beams. Never use high beams, as tunnels are inherently narrow, and encountering oncoming traffic can be stressful. High beams can instantly blind drivers of oncoming vehicles in this confined space. If an accident occurs in such a tight area, it could potentially disrupt the entire tunnel's traffic flow. Be mindful of the light difference: When entering a tunnel, the surrounding space will darken, causing the pupils to contract to adapt to the dark tunnel environment. After driving in the tunnel for an extended period, you may notice that the exit appears as a bright white light, making it momentarily difficult to see. This requires a brief adjustment period. During this time, stay calm and continue driving normally. Do not speed: Tunnel entrances typically have speed limits. Even if there are no other vehicles to interfere with your driving, you must not exceed the speed limit inside the tunnel. Speed limits in tunnels are set for a reason, as the environment differs from open roads. Speeding can lead to unpredictable and severe consequences.