Why is using high beams illegal within certain distances of other vehicles?

Using high beams within certain distances of other vehicles is illegal primarily because they can cause blinding glare. High-beam headlights are designed to illuminate the road further ahead and provide better visibility in dark conditions. However, in the vicinity of other vehicles, especially approaching or following vehicles, this bright light can impair the other driver’s vision. The intense brightness can create a temporary blindness, making it difficult for them to see the road, other vehicles, pedestrians, or any hazards, which significantly heightens the risk of accidents.

By requiring drivers to dim their high beams when within a specified distance of other vehicles, the regulations aim to ensure safety for all road users by preventing glare that could lead to dangerous driving conditions. Thus, the rule focuses on promoting the safe sharing of the road, enhancing visibility for everyone involved.