9.5. At what distance from the vehicle must a warning triangle or a flashing red light be placed in cases specified by the Traffic Rules, on roads within populated areas?
UAНа якій відстані від транспортного засобу необхідно встановити знак аварійної зупинки або миготливий червоний ліхтар у випадках, передбачених Правилами дорожнього руху, на дорогах у населених пунктах?
This exam question from the Traffic Rules of Ukraine tests the driver's knowledge of actions during an accident or a forced stop in hazardous conditions, when it is important to warn other road users in advance. In such situations, it is not enough just to stop: it is necessary to properly mark the scene to reduce the risk of a repeat accident and ensure road safety within a populated area.
The question relates to the section of the Traffic Rules on the use of external lighting devices and warning signals, specifically to the requirements of item 9.10 regarding emergency lighting and the placement of an emergency stop sign or a flashing red lantern. For the theoretical exam, it is important to understand the logic of the rule: the distance is chosen so that it actually ensures safety, but the Traffic Rules set a minimum limit specifically for populated areas.
The option with a minimum of 20 m corresponds to item 9.10 of the Traffic Rules of Ukraine: in populated areas, the sign (or lantern) is placed no closer than this distance, and if necessary, it can be placed farther if visibility is poor or there are obstacles. The options of 40 m, 50 m, and 100 m are not suitable for conditions within a populated area: 40 m is the regulatory minimum outside populated areas, and 50 m and 100 m are not stipulated as mandatory minimum values for this situation, so as answers in the exam format they are incorrect.
Practically, this knowledge helps to act quickly and correctly after stopping: turn on the hazard lights and place the warning device on the side from which vehicles are approaching and to whom danger is being created. Such a traffic rule gives other drivers time to notice the obstacle, reduce speed, and safely maneuver around or stop.
Clause 9.10
Together with switching on the hazard warning lights, a warning triangle or a flashing red light must be placed at a distance that ensures road safety, but not closer than 20 m from the vehicle in populated areas and 40 m outside them, in the event of: a) a road traffic accident (RTA); b) a forced stop in places with limited road visibility in at least one direction of less than 100 m.
Brief application: this clause directly establishes the minimum distance for placing a warning triangle (or flashing red light) specifically within a populated area — not closer than 20 m, while also requiring the distance to be chosen so as to ensure traffic safety.
That is, the correct answer is "At a distance that ensures road safety, but not less than 20 m.", given that by definition, Clause 9.10 of the Traffic Rules sets a minimum of 20 m in populated areas (provided that road safety is ensured).
When you are involved in a traffic accident or are forced to stop in a place where the road visibility in one direction is less than 100 meters, simply turning on the hazard lights is not enough. According to clause 9.10 of the Traffic Rules, the driver must additionally mark the place of the stop with an emergency stop sign or a flashing red lantern so that other road users can understand in advance that there is a danger ahead.
In a populated area, the sign (or lantern) should not be placed "right next" to the vehicle, but at such a distance that it actually increases traffic safety. The logic is simple: another driver must receive a warning in advance, have time to react, reduce speed, and safely bypass the obstacle or stop without creating an additional emergency situation.
The rules set a minimum limit for populated areas: not closer than 20 meters from the vehicle. This is the minimum that must be observed, and if necessary (for example, due to a turn, an ascent, parked cars, or other obstacles to visibility), the sign can be placed even further if it better ensures safety.
Therefore, the correct answer is "At a distance that ensures road safety, but not less than 20 meters," since clause 9.10 of the Traffic Rules requires that in populated areas the emergency stop sign (or flashing red lantern) be placed at a safe distance, but with a mandatory minimum of 20 meters from the vehicle.