35.53. Why is it dangerous to leave the roof of a vehicle uncleared of snow in winter?
UAЧому небезпечно залишати дах автомобіля не очищеним від снігу взимку?
This is an exam question from the Traffic Rules of Ukraine about winter safety and the driver's responsibility for the condition of the vehicle before departure. It emphasizes that even a “trifle” like snow on the roof can turn into a real danger for traffic: it can impair visibility, cause sudden maneuvers or braking, and create an obstacle for other road users. Such situations are often included in the theoretical exam because they are directly related to accident prevention.
The question tests knowledge of the general requirements of the traffic rules regarding the prevention of danger or obstacles (section General Provisions, specifically points like 1.5 and the definition of “danger to traffic”), as well as the driver’s duties before starting to drive (section Rights and Duties of the Driver, in particular the requirement to ensure the proper condition of the vehicle). The logic of the answers is as follows: snow left on the roof melts during warming up and driving, and during braking can slide onto the windshield, effectively “blinding” the driver at the most critical moment. Additionally, at speed, snow or chunks of ice can fly backward and hit vehicles behind, causing them a sharp loss of visibility and forcing other drivers to react immediately.
Therefore, the correct conclusion covers both risks at once: the danger exists both for the driver of their own car and for other road users, so limiting yourself to only one of the consequences would be incomplete. In practice, this means that in winter you need to clean not only the windows and mirrors, but also the roof and hood, so as not to provoke a “snow curtain,” sudden loss of visibility, and dangerous situations, which the Traffic Rules of Ukraine directly prohibit as those that create an obstacle or threat.
Clause 1.5
The actions or inaction of road users and other persons must not create danger or obstacles to traffic, threaten the life or health of citizens, or cause material damage.
This clause applies because snow or ice left on the roof/hood can come off while driving or braking, impair the driver's visibility, or create an obstacle/danger for other road users (for example, a "snow cloud" or falling ice onto the car behind).
Clause 1.10 (term "Traffic hazard")
Traffic hazard — a change in the road situation (including the appearance of a moving object) that threatens road safety and forces the driver to immediately take measures to reduce speed up to stopping the vehicle.
This clause applies because snow/ice that suddenly slides onto the windshield or flies off the roof onto others creates exactly a "traffic hazard" (sudden loss of visibility and appearance of an obstacle).
Clause 2.3 (subclause "b")
To ensure road safety, the driver is obliged: before departure, to check and ensure the technical serviceability and completeness of the vehicle, and the correct placement and securing of cargo.
This clause applies because driving in winter with an uncleared roof/hood actually means that the driver did not ensure the proper condition of the vehicle for safe driving (snow can block visibility, cover lights, worsen handling).
Clause 22.2
The cargo being transported must not: endanger road users; restrict the driver's visibility; complicate the control of the vehicle and disrupt its stability; cover external lights, reflectors, license plates and identification marks, or interfere with hand signaling; create noise, dust, pollute the road and the environment.
This clause applies according to safety requirements: snow/ice on the roof behaves like an improperly "secured mass" — it can come off, restrict visibility (slide onto the windshield), complicate control/stability, and interfere with others (fly backward), i.e., creates the risks listed in this clause.
Clause 31.4.5
The operation of vehicles is prohibited according to legislation if the windshield wiper on the driver's side does not work during rain or snowfall.
This clause applies because in winter, visibility critically depends on the proper functioning of windshield wipers; if snow/ice gets on the windshield (including by sliding from the roof), even a short-term loss of the ability to clean the glass creates a dangerous situation, and the Traffic Rules directly require the wiper to be functional in snowfall conditions.
Therefore, the correct answer is "All of the above," given that according to the definition in the Traffic Rules, the driver has no right to create danger/obstacle (cl. 1.5), must ensure the safe condition of the vehicle before departure (cl. 2.3), must not allow conditions that restrict visibility and create danger to others (cl. 22.2), and must also ensure the possibility of cleaning the windshield during snowfall (cl. 31.4.5).
In winter, the driver is required to ensure the safe technical condition and proper visibility from the driver’s seat. This is directly related to the traffic rules’ requirements to be attentive, monitor the road situation, and not create danger or obstacles for other road users. Therefore, cleaning the car from snow should concern not only the windows and mirrors, but also the roof.
The main danger of an uncleared roof is that snow, while driving, warms up, compacts, partially melts, and during braking or a sharp maneuver can slide forward. In such a situation, the mass of snow can suddenly cover the windshield and actually deprive the driver of visibility precisely at the moment when maximum control is needed. The wipers and washer may not cope with the heavy layer, and the driver becomes “blind” for a few seconds, which creates a real risk of an accident.
The second reason concerns the safety of others. At speed, snow or chunks of ice from the roof can fly backward and hit the windshield of the car behind. For the other driver, this means a sudden loss of visibility, fright, and forced braking or maneuvering, that is, you are actually creating a danger and obstacle, which contradicts the basic requirements of the traffic rules regarding not endangering other road users.
There are also practical consequences for the car itself: excess snow mass worsens aerodynamics and increases rolling resistance, which means fuel consumption rises. In addition, an uneven “load” on the roof can affect the feeling of control on a slippery road, and while driving, the snow can shift, creating additional instability and making maneuvering more difficult.
Therefore, the correct answer is “All of the above.”, since an uncleared roof can suddenly block the driver’s view, creates danger for others due to flying snow/ice, and leads to additional expenses and reduced controllability.