Warning signs

What do warning signs look like?

Warning signs are triangular with a white background, red border and black symbols. There are exceptions to this rule of thumb. They alert you to particular dangers — places on the road where you need to be extra attentive and drive at a low enough speed to handle the hazard.

Warns of slippery road

The sign warns that the road may be especially slippery. This may be due to oil spills, new asphalt, or similar conditions. It is important to assess the road surface and adjust your speed accordingly.

Warns of slippery road

Is the slippery road warning sign important for the theory test and the practical driving test?

Yes. On the theory test you may be asked about the meaning of the slippery road warning sign. If you encounter the sign during the practical driving test you must show that you recognize it, reduce your speed, and drive safely when you see it.

What is the slippery road warning sign?

The slippery road warning sign is a triangular warning sign with a red border, a white background, and a symbol of a car skidding. The sign warns that the road surface may be slippery due to rain, new asphalt, oil, dirt, or ice on a bridge.

When do you encounter the slippery road warning sign?

Typical places are:

Bridges and viaducts – freeze quickly to ice in winter.
Newly paved roads – become slippery when the surface is fresh.
After heavy rain – oil and water on the road reduce friction.
Wooded and shaded sections – areas with little sun freeze easily.
Places with dirt or gravel on the road – make the road slippery and uneven.

Picture of the slippery road warning sign on a wet road

What should you do when you see the slippery road warning sign?

Reduce your speed in good time, avoid sudden braking and turns. Keep a larger distance to the car in front, and use steady throttle.

Why is the slippery road warning sign important?

The slippery road warning sign helps you prepare for difficult driving conditions. By adjusting your speed you improve traction, reduce the risk of accidents, and increase safety for yourself and others.

Frequently asked questions (FAQ) about the slippery road warning sign

Does the sign apply in the fall as well? – Yes. Wet asphalt and fallen leaves can make the road slippery year round.
Can I brake hard when I see the slippery road warning sign? – No, brake smoothly to keep control of the car.
Should I slow down before or after I pass the sign? – Start slowing down when you see the sign so you have control before you reach the slippery section.
Does the sign apply to all vehicles? – Yes, passenger cars, trucks, and motorcycles must all adjust their speed according to the sign.