A warning sign is a traffic sign that alerts drivers to a potential danger or change in road conditions ahead, giving them enough time to slow down and react safely. These signs warn about hazards such as sharp bends, pedestrian crossings, slippery surfaces, merging traffic, animals on the road, or upcoming intersections. Their purpose is not to forbid or command anything, but simply to prepare drivers for situations that require extra attention.
Warning for a danger with no specific traffic sign.
Warning for accidents.
Warning for low-flying aircrafts.
Warning for cattle on the road.
Warning for crossing deer.
Warning for moose on the road.
Warning for reindeer on the road.
Warning for sheep on the road.
Warning for a movable bridge.
Warning for a speed bump.
Warning for a bad road surface.
Warning for children.
Warning for an uncontrolled crossroad.
Give way to all drivers.
Warning for a roundabout.
Warning for a crossroad side roads on the left and right.
Stop and give way to all drivers.
Warning for heavy crosswind.
Warning for a curve to the left.
Warning for a double curve, first left then right.
Warning for a curve to the right.
Warning for a double curve, first right then left.
Warning for cyclists.
Warning for falling rocks.
Warning for equestrians.
Warning for loose chippings on the road surface.
Warning for a crossing for pedestrians.
Warning for a quayside or riverbank.
Warning for a road narrowing.
Warning for a road narrowing on the left.
Warning for a road narrowing on the right.
Warning for roadworks.
Warning for skiers.
Warning for a slippery road surface.
Warning for a soft verge.
Warning for a steep ascent.
Warning for a steep descent.
Warning for a traffic light.
Warning for traffic jams.
Warning for a railroad crossing without barriers.
Warning for a railroad crossing with barriers.
Warning for a railroad crossing with 1 railway.
Warning for a railroad crossing with more than 1 railway.
Warning for trams.
Warning for a tunnel.
Warning for a road with two-way traffic.
This traffic sign indicates a warning for a danger with no specific traffic sign. It's a general warning sign used when there is a hazard ahead that does not have its own dedicated warning sign. For examples: road accidents, flooded roads and roads blocked by fallen trees. It usually has a supplementary sign attached that tells drivers of what hazard to expect.
© via Wikimedia.org
This traffic sign indicates a warning for accidents. It's a warning sign that alerts drivers to a location where accidents are likely to occur, or where a recent accident may have happened. Drivers should slow down, stay alert, and increase following distance. Common Locations: blind curves, intersections, tunnels, steep slopes or high-crash zones.
© via Wikimedia.org
This traffic sign indicates a warning for low-flying aircrafts. It alerts road users that aircraft may fly low over the road, potentially causing noise distraction or sudden overflight surprises. Drivers should remain focused despite potential noise or shadow distractions. Typical Locations: airports, military airbases, landing strips, airshows or heliports.
© via Wikimedia.org
This traffic sign indicates a warning for cattle. It alerts drivers to the possible presence of cows, bulls, or other domestic livestock on or near the road. It helps prevent accidents, especially in rural or agricultural areas. Cattle may cross or walk along the road, either freely or under the supervision of a herder. Drivers should: slow down, be ready to stop suddenly, avoid honking or sudden movements. Typical Locations: farmlands, pastures near roads, unfenced grazing areas, mountain roads.
© via Wikimedia.org
This traffic sign indicates a warning for crossing deer. It alerts drivers to the potential presence of deer or other wild animals crossing the road. It is essential in areas where wildlife-vehicle collisions are common. Wild deer may suddenly cross the road, especially at dawn or dusk. Drivers should: reduce speed, stay alert, watch both sides of the road. Typical Locations: forests, national parks, wildlife corridors or countryside highways.
© via Wikimedia.org
This traffic sign indicates a warning for moose. It alerts drivers that moose may cross or be present on the road. Drivers should reduce speed and stay alert, especially during dusk and dawn when moose are most active. Collisions with moose are dangerous due to their large size and high center of mass. Typical Locations: Rural or forested areas in countries like Sweden, Norway, Finland, Canada, and some northern regions of Europe.
© via Wikimedia.org
This traffic sign indicates a warning for reindeer. It alerts drivers that reindeer may be crossing or present on the road. Drivers should slow down and remain vigilant, as reindeer often move in herds and may suddenly enter the road. Collisions can cause serious damage and injury. Common in: Northern Scandinavia: Norway, Sweden, Finland.
© via Wikimedia.org
This traffic sign indicates a warning for sheep. It alerts drivers to the possible presence of sheep on or near the road. Drivers should reduce speed and be cautious, especially in rural, hilly, or pastoral areas where sheep may graze freely or cross the road unexpectedly. Common in: Rural areas of countries like the UK, Ireland, Spain, Norway, Iceland, and Switzerland.
© via Wikimedia.org
This traffic sign indicates a warning for a movable bridge. It alerts that a movable (opening) bridge is ahead — such as a drawbridge or swing bridge — which may open for boat traffic. Drivers should be prepared to stop when the bridge is open and to expect possible traffic delays. It often accompanies barriers, lights, or warning bells at the actual site. Common near: rivers, canals, or ports.
© via Wikimedia.org
This traffic sign indicates a warning for a speed bump. It alerts drivers of an upcoming raised bump in the road designed to slow down traffic. Drivers should reduce speed to avoid discomfort, damage to the vehicle, or loss of control when driving over the bump. Typical Locations: residential areas, school zones, hospitals, pedestrian zones, roads with traffic calming measures.
© via Wikimedia.org
Traffic rules
Priority signs
Warning signs
Prohibitory signs
Mandatory signs
Information signs
Additional signs