35.32. Does the choice of lateral clearance depend on the speed of movement?
UAЧи залежить вибір бокового інтервалу від швидкості руху?
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This exam question from the Traffic Rules of Ukraine concerns road safety when driving alongside other vehicles and objects. In real conditions, a car does not travel perfectly straight: the trajectory is affected by road surface irregularities, the lateral elasticity of the tires, gusts of wind, and play in the steering mechanism. The higher the speed, the more noticeable the lateral deviations become and the less time there is for correction, so the driver needs a greater "margin of space" on the side.
In the theoretical exam, this question tests the section of the traffic rules regarding the choice of safe speed and maintaining a safe distance and interval. In particular, clause 13.1 directly requires maintaining a safe interval depending on the speed and the road situation, and the definitions in clause 1.10 explain that a safe interval must guarantee safety in specific conditions. Therefore, as speed increases, the safe lateral interval should also increase, because the "dynamic corridor" of movement widens.
The statement that the lateral interval does not depend on speed contradicts the logic of safe driving and the requirements of the traffic rules: the same lateral distance may be acceptable at low speed but dangerous at high speed. Instead, the correct approach aligns with practice: when overtaking a cyclist, driving near parked cars, or passing oncoming traffic on a narrow road, increasing speed requires a larger lateral margin to avoid contact even with a slight deviation in trajectory.
Clause 13.1
The driver, depending on the speed of movement, traffic conditions, characteristics of the cargo being transported, and the condition of the vehicle, must maintain a safe distance and a safe interval.
Brief application: this clause directly establishes the dependence of the choice (and maintenance) of a safe lateral interval on the speed of movement — as speed increases, the requirements for a safe interval increase.
Clause 1.10 (term “Safe interval”)
Safe interval — the distance between the lateral sides of moving vehicles or between them and other objects, at which road safety is ensured.
Clause 1.10 (term “Safe speed”)
Safe speed — the speed at which the driver is able to safely control the vehicle and manage its movement under specific road conditions.
Brief application: these definitions explain that both speed and lateral interval must be chosen to guarantee safety in specific conditions, and therefore, as speed increases, the safe lateral interval should be greater.
Clause 12.1 (additionally — on choosing a safe speed)
When choosing a safe speed within the established limits, the driver must take into account the traffic conditions, as well as the characteristics of the cargo being transported and the condition of the vehicle, in order to be able to constantly control its movement and drive it safely.
Brief application: emphasizes the driver’s duty to choose such a speed at which he can safely control the vehicle; as speed increases, the requirements for safety increase, including through the increase of necessary intervals.
Thus, the correct answer is: “When increasing the speed of movement, the lateral interval must be increased,” given that according to the definition in the Traffic Rules, a safe interval must ensure safety, and clause 13.1 directly requires maintaining a safe interval depending on the speed of movement.
In the Traffic Rules of Ukraine, paragraph 1.10 defines the concept of a safe interval as the lateral distance between vehicles (or between a vehicle and an obstacle) that ensures traffic safety. It also explains that a safe speed is the speed at which the driver can reliably control and manage the movement of the vehicle under specific conditions. These two concepts are related: if the speed changes, the safety requirements for the interval also change.
In real conditions, a car does not move perfectly in a straight line. Even with steady steering, there are small lateral deviations: due to road surface irregularities, the lateral elasticity of the tires, gusts of wind, and also due to play in the steering mechanism. At low speeds, such deviations are usually minor and easily corrected, but at higher speeds they become more noticeable and the "corridor of movement" actually widens.
Therefore, as speed increases, so does the risk that the vehicle will shift sideways to a dangerous distance in the same period of time. For example, when overtaking a cyclist, driving next to parked cars, or passing oncoming traffic on a narrow road, at high speed even a small deviation can lead to contact, hitting an obstacle, or creating a hazard for other road users. That is why the driver must "allow a margin" for the lateral distance, and this margin should be greater when the speed is higher.
This is also consistent with the general principle of the Traffic Rules (in particular, the requirements for choosing a safe speed and maintaining safe intervals): the driver chooses the interval taking into account the speed, the road situation, and the condition of the vehicle. The higher the speed, the more factors can cause the car to move sideways, and the less time remains to correct the trajectory without consequences.
Therefore, the correct answer is: "When increasing driving speed, the lateral interval must be increased," because as speed increases, lateral deviations from the trajectory and the risk of getting closer to obstacles increase, and the safe interval according to the Traffic Rules must provide a margin for such deviations.