34.21. Such vertical road marking indicates:
UAТакою вертикальною дорожньою розміткою позначають:
This is an exam question from the Traffic Rules of Ukraine concerning road safety and the driver's visual orientation on the road. Vertical road markings are used to draw attention in advance to dangerous obstacles near or within the roadway, especially in conditions of poor visibility, at junctions, near bridges, and overpasses. Such contrasting black-and-white stripes help to avoid collisions with stationary objects.
The question tests knowledge of Section 34 of the Traffic Rules, specifically the points about vertical markings and marking 2.1 (points 34.2 and 34.2.1). According to the definition in the Traffic Rules, marking 2.1 is used to indicate the end (frontal) parts of artificial structures: parapets, lighting poles, overpass supports, and other elements that are most likely to be hit in case of a trajectory error. Therefore, the option about "all vertical elements of road structures" is too broad and does not correspond to the purpose of marking 2.1: not every vertical element is marked this way, but primarily the dangerous ends facing the traffic flow.
For the theoretical exam, it is important to understand the logic: diagonal stripes on the end of a structure make a narrow obstacle visible from afar and indicate that there is a stationary object ahead that must not be touched, even with the edge of the vehicle. In real conditions, this knowledge helps to correctly assess the situation near supports, parapets, and road narrowings and to timely adjust speed and trajectory.
Clause 34.2 — 34 "Road Markings", 2 "Vertical Markings"
Vertical markings are applied to road structures and road equipment elements and are intended to provide visual guidance for road users.
Clause 34.2.1 — 34 "Road Markings", 2 "Vertical Markings", marking 2.1
Marking 2.1 is used to indicate the end parts of artificial structures (parapets, lighting poles, overpasses, etc.).
That is, the correct answer is "End parts of artificial structures," given that according to the definition in the Traffic Rules, vertical marking 2.1 is specifically intended to indicate the ends of artificial structures (parapets, poles, overpasses, etc.).
When you see slanted alternating stripes of white and black on supports, parapets, or other elements of road structures, this is not a “decoration” or an indication of the direction of movement. This is vertical road marking, which draws the driver's attention to a dangerous obstacle located next to or within the roadway.
Section 34 of the Traffic Rules of Ukraine describes marking 2.1 for exactly such cases: it is used to highlight the end faces, that is, the “frontal” parts of artificial structures, which are the most likely to be collided with in case of a trajectory error, poor visibility, or inattention. This refers to the ends of parapets, overpass supports, lighting poles, bridge elements, and similar structures that may be in the path of a vehicle.
The logic of using this marking is simple: the end of a structure is perceived by the driver as a narrow obstacle and may be noticed too late. The contrasting diagonal stripes make such an obstacle visually noticeable from afar and help avoid a collision, especially at interchanges, near bridge supports, or in narrowing areas.
Therefore, the correct answer is "End faces of artificial structures," since marking 2.1 according to the Traffic Rules is used to highlight the ends of road structures and other vertical obstacles so that the driver notices them in advance and avoids a collision.