Driving Theory
Danish Road Signs and Traffic Sign Meanings

Prepare for icy roads with the UA31 warning sign.

UA31 - Road can be icy Danish road sign meaning

The UA31 'Road Can Be Icy' sign is a crucial warning sign that alerts you to potential icy patches ahead. Seeing this sign means you should anticipate reduced road grip and adjust your driving accordingly. Slow down early, increase your following distance, and widen your observation to ensure you can react safely to changing conditions, especially where visibility, road width, or crossings might be affected.

Understanding the "Road can be icy" Sign (UA31)

This warning sign (UA31) alerts you to potential icy patches, requiring you to adjust speed and following distance in advance. Mastering road sign meaning is crucial for your theory test revision and safe driving in Denmark.

Definition of UA31

This Danish warning sign is an early planning cue. It appears before the hazard so drivers can adapt speed, following distance, lane position, and observation before the situation becomes demanding. A strong theory explanation connects the sign to a practical response: anticipate the risk, keep control, avoid unnecessary overtaking, and leave extra margin where visibility, grip, crossings, or road width may change. Official catalogue code: UA31.

Meaning of UA31

The "Road can be icy" sign gives advance warning of road can be icy. It gives drivers time to reduce speed if needed, widen observation, and prepare before reaching the hazard. Catalogue code UA31.

Allowed actions for UA31

Reduce speed early when the warning affects visibility, grip, road width, crossings, or vulnerable road users.Increase following distance and keep enough margin for smooth braking, steering, yielding, or stopping.

Prohibited actions for UA31

Do not treat the warning as decorative or wait until the hazard is directly ahead.Do not overtake or make abrupt lane changes where the warning indicates a reduced safety margin.

UA31 - Road can be icy road sign FAQ

Get clear, practical answers to the most common questions about the UA31 - Road can be icy road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Danish driving theory exam in Denmark.

What does the UA31 'Road Can Be Icy' sign mean?

The UA31 sign warns you in advance that the road surface ahead may be icy. This is important because ice significantly reduces tyre grip, increasing the risk of skidding. It gives you time to prepare your vehicle and driving style before you reach the potentially hazardous section.

How should I react when I see the UA31 sign?

When you see the UA31 'Road Can Be Icy' sign, you must reduce your speed well before reaching the area where ice is expected. Increase the distance to the vehicle in front and drive more smoothly, avoiding sudden braking or steering. Pay extra attention to the road surface and any changes in visibility or road width.

Are there any actions I should avoid when this sign is displayed?

Yes, you should avoid overtaking or making sudden lane changes when the UA31 sign is displayed, especially if the road conditions are already compromised by ice or the sign's placement suggests a narrow or winding section. Abrupt manoeuvres are much more dangerous on slippery surfaces.

What are common theory test traps related to the UA31 sign?

A common trap is assuming the ice is only in one specific spot. The sign is an advance warning, so the hazard could extend over a larger area or multiple locations. Another trap is not reacting early enough; drivers might wait until they feel the car slipping instead of proactively adjusting speed and distance upon seeing the warning.

Does the UA31 sign mean the entire road is icy?

Not necessarily. The UA31 sign is an advance warning, indicating that *parts* of the road ahead *may* be icy. This is particularly common in areas like shaded spots, bridges, or higher ground where frost can form more readily. Always be prepared for intermittent icy patches rather than a continuous sheet of ice.

How does the UA31 sign differ from seeing actual ice on the road?

The UA31 sign is a proactive warning that alerts you to a *potential* hazard *before* you encounter it. Seeing actual ice on the road means you are already in the hazardous situation. The sign gives you the crucial advantage of time to prepare and adapt your speed and driving behaviour safely in advance.

UA31 - Road can be icy road sign image

A clear reference image of the UA31 - Road can be icy road sign used in Denmark.

UA31 - Road can be icy road sign

Other names for the UA31 - Road can be icy

The UA31 - Road can be icy road sign may also be known by these alternative names or terms.

Road can be icyUA31 warning signUA31 Danish warning signwarning signs

Danish Warning Signs road sign category

The UA31 - Road can be icy road sign is part of the Danish Warning Signs category, which groups together signs with similar rules and functions.

Compare Similar Road Signs for Better Recall

Reviewing signs like 'Road can be icy' alongside similar Danish warning signs enhances recognition and reduces confusion. This targeted theory test revision helps you distinguish between critical road sign meanings for safer driving.

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Dangerous junction with a non-priority road

This Danish warning sign is an early planning cue. It appears before the hazard so drivers can adapt speed, following distance, lane position, and observation before the situation becomes demanding. A strong theory explanation connects the sign to a practical response: anticipate the risk, keep control, avoid unnecessary overtaking, and leave extra margin where visibility, grip, crossings, or road width may change. Official catalogue code: A11.

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This Danish warning sign is an early planning cue. It appears before the hazard so drivers can adapt speed, following distance, lane position, and observation before the situation becomes demanding. A strong theory explanation connects the sign to a practical response: anticipate the risk, keep control, avoid unnecessary overtaking, and leave extra margin where visibility, grip, crossings, or road width may change. Official catalogue code: A16.

Deepen Your Road Sign Knowledge with Practice Questions

After reviewing the full list of Danish road signs, test your understanding by attempting practice questions focused on sign recognition and meaning. Reinforce your learning and identify areas needing further study to confidently pass your driving theory exam.

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Dive into Danish road sign knowledge

A38 Dip Danish road signUA22 School Danish road signA21 Cyclists Danish road signA22 Children Danish road signA34 Rockfall Danish road signDanish Driving Theory B courseA39 Roadworks Danish road signDanish Driving Theory AM courseA16 Roundabout Danish road signA36 Speed bump Danish road signA36.1 Actibump Danish road signA23 Equestrians Danish road signA37 Uneven road Danish road signDanish Motorcycle Theory A courseA20 Traffic queue Danish road signA31 Slippery road Danish road signDanish Heavy Vehicle Theory C courseA18 Two-way traffic Danish road signA19 Traffic signals Danish road signA33 Loose chippings Danish road signA27 Domestic animals Danish road signUA31 Road can be icy Danish road signA35 Dangerous shoulder Danish road signA17 Pedestrian crossing Danish road signA41.1 Curve to the right Danish road signDanish Passenger Transport Theory D courseA26 Wild animals crossing Danish road signDanish Sign Symbols Danish road sign categoryDanish Warning Signs Danish road sign categoryDanish Service Signs Danish road sign categoryDanish Priority Signs Danish road sign categoryDanish Motorway Signs Danish road sign categoryDanish Mandatory Signs Danish road sign categoryDanish Direction Signs Danish road sign categoryDanish Prohibitory Signs Danish road sign categoryDanish Route Designations Danish road sign categoryDanish Additional Subpanels Danish road sign categoryDanish Special Regulation Signs Danish road sign categoryDanish Distance and Locality Signs Danish road sign categoryA11 Dangerous junction with a non-priority road Danish road sign