48.30. The depicted road sign prohibits the movement of:
UAЗображений дорожній знак забороняє рух:
This exam question from the Traffic Rules of Ukraine tests attentiveness to prohibitory road signs and understanding of how traffic restrictions are connected to environmental and road safety. In real-life situations, such prohibitions are introduced to minimize the risk of hazardous substances entering bodies of water and water intake zones, so a driver must be able to quickly determine exactly whom the sign applies to and where its effect ends.
The topic of the question belongs to Section 33 of the Traffic Rules, subsection 3 "Prohibitory signs," specifically sign 3.14, which concerns vehicles with the "Orange plate" identification sign (section 30.3). In the theoretical exam, it is important to distinguish the general concept of "dangerous goods" from the more specific category of goods dangerous specifically to the aquatic environment: sign 3.14 does not prohibit the movement of all tankers and not all transportation of dangerous goods, but specifically those vehicles carrying substances that can pollute water and have the appropriate marking.
The analysis of answer options comes down to the precision of wording: transportation in tankers by itself does not always mean prohibition, so statements about "tankers" are too broad; wording about "dangerous goods" can also be broader than the meaning of sign 3.14, as it emphasizes the danger to water resources. The correct option is about substances that pollute water, because it fully corresponds to the name and definition of the sign in the Traffic Rules of Ukraine; the answer that combines all previous options is incorrect due to the different scope of the concepts. It is also worth remembering the general rule for the area of effect of prohibitory signs (section 33): from the place of installation to the nearest intersection, and in a populated area without intersections—to its end, and this effect does not "disappear" at exits from adjacent territories.
Clause 33.3 — 33 "Road Signs", 3 "Prohibitory Signs", sign 3.14 "Movement of vehicles carrying substances that pollute water is prohibited"
Prohibits the movement of vehicles with the identification sign "Orange Plate" that are transporting substances dangerous to water resources of the environment.
Clause 33.3 — 33 "Road Signs", 3 "Prohibitory Signs" (general provisions on the area of effect of prohibitory signs)
The area of effect of prohibitory signs is from the place of installation to the nearest intersection beyond it, and in populated areas where there are no intersections — to the end of the populated area. The effect of the signs is not interrupted at exits from adjacent territories to the road and at intersections (junctions) with field, forest, and other unpaved roads, before which no priority signs are installed.
Clause 30.3 — 30 "Number, identification signs, inscriptions and markings" (identification sign "Orange Plate")
"Orange Plate" — an identification sign that is installed at the front and rear of vehicles transporting dangerous goods.
Thus, the correct answer is "Vehicles carrying substances that pollute water," given that according to the definition in the Traffic Rules, sign 3.14 directly prohibits the movement of vehicles with the identification sign "Orange Plate" that are transporting substances dangerous to water resources.
Sign 3.14 from section 33 of the Traffic Rules belongs to the prohibitory signs and applies not to all vehicles, but only to a specific category of transport. It is installed where it is necessary to eliminate the risk of hazardous substances entering water bodies or water intake zones, for example, near bridges, dams, or close to rivers and lakes.
The prohibition applies to vehicles transporting cargo dangerous to the aquatic environment and marked with an identification sign in the form of an orange plate. That is, it concerns specially marked vehicles carrying substances that, in case of leakage, can pollute water. Ordinary passenger cars, buses, or trucks without such marking are not restricted by this sign.
The effect of this sign begins from the place of installation and continues to the nearest intersection, or if it is a populated area without intersections—to its end. It is important to remember that exits from adjacent territories or junctions with dirt roads without priority signs do not cancel the prohibition, so the driver of such a vehicle cannot "bypass" the restriction simply by exiting from a yard or a gas station in this area.
Therefore, the correct answer is "Vehicles transporting substances that pollute water," since sign 3.14 prohibits the movement of vehicles with orange marking transporting substances hazardous to water resources.