A traffic lights warning sign alerts drivers that they are approaching an intersection controlled by traffic lights. This warning sign is placed before the actual traffic lights, especially in places where the lights may be unexpected or not easily visible due to curves, hills, or other obstacles. Its purpose is to ensure drivers slow down, stay attentive, and prepare to stop if the signal ahead turns red.
Warning for movable bridge. Warning for traffic lights. (Mannheim, Germany) © Wikimedia.org/Baden de, CC BY
Traffic rules
