48.86. When approaching a signal-controlled intersection in a vehicle driven by a driver with one of the categories C, C1, what must the driver always take into account?
UAУ разі під'їзду до регульованого перехрестя транспортним засобом, яким керує водій з однією з категорій C, C1, що завжди потрібно ураховувати водієві?
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This exam question from the Traffic Rules of Ukraine checks not only knowledge of traffic light signals at regulated intersections, but also the driver's ability to assess their impact on the safety of other road users. For drivers of categories C and C1 (trucks), this is especially important due to their large dimensions: incorrect positioning before the intersection can create an obstacle, force others to orient themselves "by you" rather than by the regulation signals, and increase the risk of mistakes during starting or stopping.
In essence, this question concerns the general duties and responsibilities of road users (point 1.5 of the Traffic Rules) and section 15 "Stopping and Parking," in particular the prohibition of stopping where the vehicle blocks traffic light signals or road signs (point 15.9). Such situations are often included in the theoretical exam, where practical logic is important: even if you stop "correctly" for yourself, you must consider the visibility for those behind or next to you, so as not to block the traffic light or signs before the intersection.
The analysis of the answer options comes down to the fact that simply being aware that the intersection is regulated does not solve the main problem of a large vehicle, and knowing the route does not directly relate to the safety of signal visibility. Instead, the key idea in the traffic rules for a truck driver approaching an intersection is this: position yourself and act so as not to create an obstacle for others and not to "screen" the traffic light from them, as this directly affects their decisions and the overall safety of passage.
Clause 1.5
The actions or inaction of road users and other persons must not create danger or obstacles to traffic, threaten the life or health of citizens, or cause material damage.
Brief application: when approaching and stopping before a regulated intersection, the driver of a cargo vehicle must act in a way that does not create obstacles for others, in particular, not blocking their view of the traffic light signals.
Clause 15.9 (Section 15 "Stopping and Parking")
Stopping is prohibited: in places where the vehicle blocks the view of traffic light signals or road signs for other road users.
Brief application: if due to the large dimensions of a cargo vehicle (category C, C1) when approaching/stopping at the approach to an intersection it may block the view of traffic light signals (or signs before the intersection) for other road users, the driver must take this into account and choose a position that does not block the view.
That is, the correct answer is "The fact that due to the dimensions of the vehicle, the traffic light signals may not be visible to other road users," considering that according to the definition of the Traffic Rules, stopping is prohibited in places where the vehicle blocks the view of traffic light signals for other road users (and in general, the driver's actions must not create obstacles to traffic).
When approaching a signal-controlled intersection in a cargo vehicle of categories C or C1, the driver must assess the situation not only for themselves, but also taking into account how their vehicle affects the visibility for other road users. At such intersections, the order of passage is determined by traffic light signals, and for safety it is important that all drivers can see them in time and interpret them correctly.
A cargo vehicle has significant dimensions and may partially or completely block the view of the traffic light for those moving behind or alongside. For example, if a truck stops first at the stop line, the driver of a car behind may not see the traffic light signal above the intersection or on the side, especially when the traffic light is not located above every lane, but on the side of the road. As a result, other participants may be forced to rely on the truck’s behavior, which creates a risk of error: someone may start moving later, or conversely, someone may move without being sure of a permissive signal.
This is why the driver of a cargo vehicle must always remember this “screen” effect: their vehicle can block not only traffic light signals, but also signs before the intersection, which also affects the actions of other drivers. Awareness of this requires acting as predictably as possible: stopping at the designated place, not making unnecessary maneuvers before the stop line, and not provoking others to orient themselves “by you” instead of by the control signals.
Therefore, the correct answer is: “The fact that, due to the dimensions of the vehicle, the traffic light signals may not be visible to other road users,” since a large cargo vehicle can block the view of the traffic light at the intersection for other drivers, which directly affects their decisions and traffic safety.