35.2. A safe following distance when driving a passenger car on a dry road can be considered the distance that the vehicle will cover in no less than:
UAБезпечною дистанцією під час руху сухою дорогою на легковому автомобілі можна вважати відстань, яку автомобіль пройде не менше ніж за:
Question without image
This is an exam question from the Traffic Rules of Ukraine (PDR) about road safety and the correct choice of distance when driving in traffic. Maintaining a safe distance reduces the risk of rear-end collisions, especially when the car in front suddenly brakes or stops. In the theoretical exam, such questions check whether the driver understands that the distance should “buy” time for reaction, the start of braking, and the operation of the braking system.
The question tests the section of the traffic rules regarding distance and interval, as well as the basic definition from the PDR terminology: a safe distance is the space to the vehicle ahead in the same lane that allows you to avoid a collision without maneuvering if it suddenly brakes. In training practice, for dry surfaces, the minimum guideline is considered to be the two-second rule: it matches the typical time for hazard perception, decision-making, and the start of braking, and at the same time automatically “scales” the distance depending on speed.
The option with 1 second is usually too short: such a margin is often not enough for the driver’s reaction and the brakes to engage, so the risk of collision increases sharply. The 2-second guideline is considered minimally sufficient for a passenger car on a dry road in normal conditions, which is why it is correct within the scope of this exam question. Three seconds may be even safer, but this is already an increased margin (more relevant for more difficult conditions), whereas the wording refers to the minimum safe guideline for dry pavement.
In practice, the seconds rule is checked simply: choose a stationary reference point (a sign, pole, seam on the asphalt), and when the car in front passes it, count the required time; if you reach the reference point earlier — the distance should be increased. This is a useful habit not only for passing the theoretical exam, but also for everyday driving, because on wet, slippery roads or in the dark, the safe distance should be further increased taking into account the road situation and traction.
Clause 1.10 (term "Safe distance")
Safe distance — the distance to the vehicle moving ahead in the same lane, which, in the event of its sudden braking or stopping, allows the driver of the vehicle moving behind to avoid a collision without performing any maneuver.
Clause 13.1 — 13 "Distance, interval, oncoming passing"
The driver, depending on the speed, road conditions, characteristics of the cargo being transported, and the condition of the vehicle, must maintain a safe distance and a safe interval.
Clause 12.1 — 12 "Speed of movement"
When choosing a safe speed within the established limits, the driver must take into account the road situation, 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.
That is, the correct answer is "2 seconds," given that according to the definition in the Traffic Rules, a safe distance is such a distance to the vehicle ahead that, in the event of its sudden braking or stopping, allows avoiding a collision, and in practice, for dry pavement, the minimum "control" value in educational materials is the 2-second rule.
While driving, the driver is required to independently choose a safe following distance. In the Traffic Rules (the term “safe distance”) this is explained as the distance to the vehicle ahead in the same lane, which, in the event of its sudden braking or stopping, allows you to avoid a collision without any maneuvering. In other words, the meaning of distance is simple: it should “buy” you time to react and begin braking.
The problem is that estimating distance “in meters” by eye is inconvenient: different drivers perceive 20, 30, or 50 meters differently. Therefore, in practice, it is safer and simpler to measure the distance by time, in seconds. Time is always the same, regardless of speed or your ability to estimate distances: the faster you drive, the greater the distance you cover in the same number of seconds.
On a dry road, the minimum safe guideline for a passenger car is considered to be the two-second rule. It takes into account the typical delay in perceiving danger, making a decision, and starting to brake (driver reaction and brake activation). If the car in front suddenly brakes, these two seconds give you the necessary time buffer to start braking and avoid “crashing” into it.
This is very easy to check. You choose a stationary landmark on the road (for example, a pole, sign, or asphalt seam). When the car in front passes this landmark, you start counting “one thousand one, one thousand two.” If your car reaches this landmark before two seconds have passed, it means the distance is too short and needs to be increased.
For a visual understanding: at a speed of 50 km/h, a car covers about 28 meters in 2 seconds, and at 100 km/h — about 56 meters in 2 seconds. That is, the seconds rule automatically selects a greater distance at higher speeds, which is exactly what is needed for safe braking.
Therefore, the correct answer is "2 seconds," since on a dry road, the safe distance must provide the driver with time to react and begin braking so that in the event of sudden braking by the vehicle ahead, a collision can be avoided without maneuvering.