When breaking down (not on a motorway), how far should you place a warning triangle?

The recommended distance to place a warning triangle when breaking down on a road that is not a motorway is typically 45 meters. This distance is intended to provide ample warning to oncoming traffic, allowing other drivers enough time to react and avoid a potential hazard. The placement of the triangle at this distance ensures that it is visible to approaching vehicles, especially in cases of reduced visibility or high-speed conditions. It is essential for the safety of the driver and any passengers as well as other road users.

Choosing a distance that is too short might not give oncoming vehicles sufficient reaction time, potentially leading to accidents. Conversely, placing it too far away could also diminish its effectiveness by not drawing attention to the hazard in a timely manner. Therefore, 45 meters is generally regarded as the optimal distance for effective warning.