Can You Use High Beams in Tunnels?
2 Answers
Tunnels are not suitable for using high beams. Reasons why high beams should not be used: Due to the significant difference in light levels inside and outside tunnels, drivers' vision is limited. Using high beams in such conditions increases the risk of accidents. Additionally, tunnels are equipped with their own lighting, so high beams are unnecessary, and low beams should be used instead. Low beams should be used in tunnels: In some areas where lighting is available but insufficient, low beams should still be activated. Tunnels fall into this category—despite having lighting, the brightness is often inadequate, necessitating the use of low beams. During heavy fog, snow, or rain when visibility is severely reduced, low beams must also be used even during the day.
When I first got my driver's license, my instructor emphasized that you must never use high beams in tunnels. Tunnels already have sufficient lighting, and using high beams can cause excessive glare in the rearview mirrors of vehicles ahead, interfering with other drivers' visibility and increasing risks. Once, I forgot to switch off my high beams when entering a highway tunnel, and the driver in front nearly panicked and swerved lanes. Fortunately, I slowed down and avoided an accident—it was a profound lesson. Now, I’ve developed the habit of always switching to low beams before entering a tunnel to maintain a safe, low-profile lighting environment. I also recommend that new drivers practice light-switching operations diligently and avoid carelessness.
