45.1. Insufficient visibility is considered:
UAНедостатньою видимістю вважається:
This is an exam question from the Traffic Rules of Ukraine concerning road safety in difficult conditions, when the driver cannot assess the traffic situation in advance. Understanding the terms from the “General Provisions” of the traffic rules directly affects the correct choice of speed, distance, and use of lighting devices, and is therefore critically important for both the theoretical exam and real driving.
The question tests knowledge of the definition from clause 1.10 of the Traffic Rules (the term “insufficient visibility”): it refers to situations when the visibility of the road in the direction of travel becomes less than 300 meters due to twilight or weather phenomena such as fog, rain, or snowfall. This specific criterion of “less than 300 m” combined with natural conditions is the key to the correct answer in the tickets and on the exam.
The analysis of the answer options is as follows: the statement about visibility of less than 300 m due to a road curve describes not “insufficient visibility,” but limited visibility, since the cause here is the geometry of the road. The list “dangerous curve/ascent/descent” generally refers to road section characteristics and warning signs, not visibility terms. Instead, the wording about reduced visibility to less than 300 m in twilight and during precipitation or fog precisely matches the definition from the Traffic Rules of Ukraine, so this is what should be chosen on the theoretical exam.
Clause 1.10 (term "Insufficient visibility")
Insufficient visibility means road visibility in the direction of travel of less than 300 m in twilight, fog, rain, snowfall, etc.
This term specifically defines weather/natural conditions and time of day (twilight), under which the visibility distance in the direction of travel becomes less than 300 m.
Therefore, the correct answer is "Road visibility in the direction of travel of less than 300 m in twilight, fog, rain, snowfall, etc.", considering that according to the Traffic Rules definition, insufficient visibility is visibility in the direction of travel of less than 300 m under such conditions.
In the Traffic Rules of Ukraine, the term "insufficient visibility" is defined in point 1.10 and refers specifically to situations when the driver sees the road worse due to natural conditions or time of day. That is, it is not about obstacles on the roadside or turns, but about the picture ahead becoming "blurred" or "disappearing" due to dusk or bad weather.
The key indicator in this definition is a distance of 300 meters in the direction of travel. If in dusk or during fog, rain, snowfall, etc., you can distinguish the road ahead at a distance of less than 300 m, this is considered insufficient visibility according to the rules. For example, in fog you can see only about 150–200 m, or in heavy rain the visibility range decreases so much that the road situation "appears" too late — these are typical cases of insufficient visibility.
It is important not to confuse this concept with "limited visibility." Limited visibility arises due to the geometry of the road or obstacles (a turn, an ascent, buildings, trees, parked cars), and not because of fog or precipitation. In our question, conditions such as fog, rain, and snowfall are directly mentioned, so it is specifically about insufficient visibility.
Therefore, the correct answer is "Visibility of the road in the direction of travel is less than 300 m in dusk, in conditions of fog, rain, snowfall, etc.", since according to point 1.10 of the Traffic Rules, insufficient visibility is defined as a reduction of road visibility ahead to less than 300 m precisely due to dusk and weather phenomena.