56.8. Is it permitted for the vehicle combination to proceed in the depicted situation if the mass of the tractor unit is 10 t?
UAЧи дозволено рух транспортного состава в зображеній ситуації, якщо маса тягача – 10 т?
This is an exam question from the Traffic Rules of Ukraine that tests the driver's ability to read and correctly apply prohibitory road signs that restrict movement by weight. Such restrictions directly affect road safety and the preservation of road surfaces, which is why situations involving trucks and trailers are often included in the theoretical exam.
The topic of the question belongs to section 33 of the Traffic Rules, specifically to prohibitory sign 3.15 "Movement of vehicles with a mass exceeding ... t is prohibited." An important detail: the sign applies not only to an individual vehicle but also to a vehicle combination, that is, a tractor coupled with a trailer (paragraph 1.10 of the Traffic Rules). The restriction is assessed based on the actual total mass of the entire combination, not just the mass of the tractor.
If the mass of the tractor itself is 10 t, then with a trailer, the total actual mass of the vehicle combination will be more than 10 t, so the requirement of sign 3.15 is violated and it is not allowed to continue driving in the area of its effect. That is why the option "allowed" is incorrect: in such tasks, you need to consider the entire combination, not "just the vehicle," and remember that drivers are required to comply with road signs (paragraph 8.4 of the Traffic Rules).
Clause 1.10 (term "Vehicle combination")
Vehicle combination — mechanically connected vehicle and trailer(s).
Clause 1.10 (term "Actual mass of the vehicle")
Actual mass of the vehicle — the mass of the vehicle with or without cargo, including the driver and passengers.
Clause 8.4 (Road signs)
Road signs are used to regulate road traffic, and drivers are required to comply with their requirements.
Clause 33.3 — 33 "Road signs", 3 "Prohibitory signs", sign 3.15 "Movement of vehicles with a mass exceeding ... t is prohibited"
Sign 3.15 "Movement of vehicles with a mass exceeding ... t is prohibited" prohibits the movement of vehicles, including their combinations, whose total actual mass exceeds the value indicated on the sign.
The area of effect of the sign 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 sign is not interrupted at exits from adjacent territories or at intersections (junctions) with field, forest, and other unpaved roads where no priority signs are installed before them.
Thus, the correct answer is "Prohibited.", considering that sign 3.15 prohibits the movement of vehicles, including vehicle combinations, if their total actual mass exceeds the value indicated on the sign.
In this situation, the key factor is the prohibitory sign 3.15, which restricts movement based on weight. It sets the rule: you cannot proceed if the actual total mass of the vehicle or vehicle combination exceeds the value indicated on the sign.
It is important to note that for a vehicle combination, not only the tractor unit is considered, but the entire coupled combination: the truck plus the trailer. That is, the total actual mass is assessed.
The question states that the mass of the tractor unit alone is 10 t. Since a trailer is attached to it, the total mass of the combination will in any case be more than 10 t. Therefore, it exceeds the restriction set by sign 3.15, and it is not allowed to continue driving within its zone of effect.
Thus, the correct answer is "Prohibited," since sign 3.15 forbids the movement of vehicle combinations if their total actual mass exceeds the value indicated on the sign, and with a tractor unit mass of 10 t plus a trailer, this mass will be greater.