33.3.95. The effect of this road sign applies to:
UAДія даного дорожнього знаку поширюється на:
This exam question from the Traffic Rules of Ukraine concerns road safety and restrictions for certain categories of vehicles. Such prohibitions are introduced where the passage of certain vehicles may increase risks for people and the environment, for example in tunnels, on bridges, in densely built-up urban areas, or near important facilities.
The question tests knowledge of Section 33 "Road Signs," specifically prohibitory signs (item 33.3.12, sign 3.12 "Movement of vehicles carrying dangerous goods is prohibited"), as well as understanding of the term "dangerous goods" from item 1.10 and the requirements regarding the identification sign "Orange plate" (item 30.3). The essence is that the effect of this sign is targeted: it applies specifically to vehicles transporting dangerous goods (usually marked with orange plates), and not to all trucks in general, nor does it depend solely on their weight.
An analysis of the answer options in the theoretical traffic rules exam shows a typical trap: "all trucks" and "trucks over 3.5 t" refer to other restrictive signs and do not correspond to the meaning of sign 3.12. Instead, the correct option is about vehicles transporting dangerous goods, because it is the transportation of hazardous substances that is the criterion for applying the prohibition; in practice, the sign is often installed in advance together with plate 7.1.1 "Distance to the object" so that the driver can choose a detour in time and not violate the Traffic Rules of Ukraine.
Clause 33.3.12 — 33 "Road Signs", 3 "Prohibitory Signs", sign 3.12 "Movement of vehicles carrying dangerous goods is prohibited"
Sign 3.12 prohibits the movement of vehicles carrying dangerous goods.
Explanation of application: the sign applies specifically to vehicles transporting dangerous goods (and not to all vehicles without exception).
Clause 1.10 (term "Dangerous goods")
Dangerous goods are substances, materials, products, production and other activity wastes, which, due to their inherent properties and under certain conditions, may, during transportation, cause explosions, fires, damage to technical means, devices, structures, and other objects, death or injury to people or animals, or harm to the environment.
Explanation of application: it is precisely the classification of the cargo as "dangerous" according to the Traffic Rules that determines to whom the prohibition of sign 3.12 applies.
Clause 30.3 — 30 "Number, identification signs, inscriptions and markings", identification sign "Orange-colored plate"
Vehicles transporting dangerous goods must display the identification sign "Orange-colored plate".
Explanation of application: the "orange-colored plate" is an external sign of vehicles to which the prohibition of sign 3.12 applies.
Clause 33.7.4.1 — 33 "Road Signs", 7 "Plates to road signs", plate 7.4.1 "Time of operation"
Plate 7.4.1 indicates the time of day during which the road sign is in effect (for example, from 6:00 to 22:00).
Explanation of application: if sign 3.12 is used together with plate 7.4.1 (6:00–22:00), the prohibition of movement for vehicles with dangerous goods applies only during the specified time period.
Therefore, the correct answer is "Vehicles carrying dangerous goods," considering that according to the definition in the Traffic Rules, sign 3.12 directly prohibits the movement of vehicles transporting dangerous goods (in particular, those marked with the "orange-colored plate"), and if plate 7.4.1 is present, the restriction applies during the specified hours.
Sign 3.12 belongs to the prohibitory signs and is used to restrict movement not for all road users, but only for a clearly defined category of vehicles. Its meaning is specifically related to the transportation of dangerous goods.
When a driver operates a vehicle carrying dangerous goods, such a vehicle is marked with an appropriate identification sign in the form of an orange-colored plate. It is precisely vehicles with such markings that this prohibition targets: it does not allow further movement of this category of vehicles in the direction where the sign is installed.
In practice, this sign is installed so that a driver transporting dangerous goods can choose a detour in advance. For this purpose, before the restricted section, additional warning information about the distance to the restriction may be provided so that the driver has time to change the route without violating the requirements.
Therefore, the correct answer is "Vehicles transporting dangerous goods," since sign 3.12 prohibits movement only for vehicles marked as transporting dangerous goods (orange-colored plate), and not for all vehicles.