43.31. At what distance from an oncoming vehicle must you switch from high beam to low beam headlights at night when riding a motorcycle?
UAНа якій відстані до зустрічного транспортного засобу необхідно переключити дальнє світло на ближнє в темний час доби рухаючись на мотоциклі?
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This exam question from the Traffic Rules of Ukraine concerns driving safety at night and the proper use of external lighting devices. High beam improves the road visibility for the motorcycle rider, but it can dazzle other road users, creating a direct risk of an accident. That is why the traffic rules set clear requirements for when to reduce the brightness of lighting to maintain visibility for everyone.
The question tests knowledge of the section of the Traffic Rules regarding the use of lighting devices (paragraph 19.2), which often appears on the theoretical exam. The rule is the same for all motor vehicles, including motorcycles: when approaching oncoming traffic, the driver is required to switch from high beam to low beam in advance, at a distance of no less than 250 meters, as well as in any situation where the high beam may dazzle (including drivers moving ahead in the same direction).
The answer options of 100 m and 150 m are too short: at such a distance, dazzling may already occur, and there is less time for a safe reaction, so these options do not meet the requirement of paragraph 19.2. The distance of 250 m is consistent with the direct rule of the Traffic Rules of Ukraine and is the minimum permissible threshold for switching; the value of 300 m may seem more cautious, but within the context of the exam question, it is important to know the minimum established by the rules. The practical conclusion is simple: if the oncoming headlights are already closer than 250 meters, high beam must not be used, so as not to endanger other drivers.
Clause 19.2
The high beam headlights should be switched to low beam at least 250 m before an oncoming vehicle, as well as when the high beam may dazzle other drivers, including those moving in the same direction.
Explanation of application: the requirement is the same for all motor vehicles, including motorcycles; when approaching an oncoming vehicle, the driver must switch from high beam to low beam in advance (no less than 250 m) to avoid dazzling the other driver.
Therefore, the correct answer is "At a distance of no less than 250 m," considering that according to the definition in the Traffic Rules, the high beam must be switched to low beam at least 250 m before an oncoming vehicle to prevent dazzling.
At night, high beam headlights on a motorcycle provide better road visibility, but at the same time create a risk of dazzling other road users. That is why the Rules set a clear moment when they must be switched off.
According to clause 19.2 of the Traffic Rules of Ukraine, when an oncoming vehicle is approaching, the driver is required to switch from high beam to low beam in advance. The explanation is simple: the eyes of the driver of the oncoming car (or another motorcycle) are especially sensitive to bright light in the dark, and even brief dazzling can lead to loss of control over the vehicle.
Therefore, the Traffic Rules specify the minimum safe distance for such switching: not less than 250 meters from the oncoming vehicle. For example, if at night you see approaching headlights on a straight section of road, and they are still approximately 300–250 meters away, this is the moment when you need to switch to low beam, without waiting for the distance to become less. If the distance is already less than 250 meters, you cannot use high beams, so as not to dazzle the oncoming driver.
It is also important to remember the general principle of this clause: high beams should be switched off not only because of oncoming traffic, but also in any situation where they may interfere with other drivers, including those driving ahead in the same direction.
Thus, the correct answer is "At a distance of not less than 250 m," since clause 19.2 of the Traffic Rules requires switching from high beam to low beam in advance, so as not to dazzle oncoming vehicles and to ensure traffic safety.