The 'Priority Junction Ahead from the Right' (125.4) traffic sign warns you of an upcoming junction where the priority rules change, and traffic from the right will have precedence. As this is a hazard warning sign, it's placed in advance to allow you to adjust your speed and improve your observation. In Iceland, this warning is especially crucial due to potentially challenging conditions like poor visibility, ice, or gravel, so approach with extra care.
This hazard warning sign signals an upcoming junction where priority rules are critical, demanding early speed reduction and enhanced observation specific to Iceland's variable conditions. Mastering this sign's meaning is essential for successful theory test revision and safe driving, ensuring you can confidently navigate complex traffic situations.
Priority Junction Ahead from the Right is a hazard warning sign placed far enough in advance to let drivers adapt before reaching the danger. It does not by itself create a fixed manoeuvre, but it clearly signals that the road or traffic situation ahead needs earlier braking, steadier steering, and better lane discipline than an ordinary section of road. In practice, the right response is to finish major braking before the hazard, keep a smooth line through it, and avoid sudden reactions that could destabilise the vehicle. The warning is particularly important in Iceland because weather, darkness, snow, wind, and changing surfaces can make a familiar hazard much more severe.
This warning sign tells drivers that a junction where right of way changes is ahead and that they need to reduce speed early, improve observation, and approach with extra care. On Icelandic roads that can mean preparing for poor visibility, loose gravel, ice, strong wind, narrow margins, or limited room to recover if something goes wrong.
Get clear, practical answers to the most common questions about the 125.4 - Priority Junction Ahead from the Right 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 Icelandic driving theory exam in Iceland.
This sign is a warning that you are approaching a junction where traffic coming from the right has priority. You must reduce your speed, observe carefully, and be prepared to let right-hand traffic pass before proceeding.
You should immediately start to slow down and increase your focus on the road ahead and to your right. Anticipate that vehicles approaching from the right will have priority. Avoid sudden braking or steering inputs as you approach the junction.
Yes, the unpredictable Icelandic weather and road conditions, such as ice, snow, strong winds, poor visibility, and gravel surfaces, can make junctions more hazardous. This sign serves as a reminder to be extra vigilant and adapt your driving accordingly.
A common mistake is not slowing down early enough or assuming the junction is clear. Learners might also forget that priority applies strictly from the right at this junction and fail to yield appropriately, leading to dangerous situations, especially in poor visibility or on slippery surfaces.
Not necessarily. The sign warns you that traffic from the right has priority. You must yield to them if they are approaching and could be affected by your manoeuvre. If the junction is clear from the right, you may proceed cautiously without stopping, but always be prepared to stop if needed.
A clear reference image of the 125.4 - Priority Junction Ahead from the Right road sign used in Iceland.

The 125.4 - Priority Junction Ahead from the Right road sign may also be known by these alternative names or terms.
The 125.4 - Priority Junction Ahead from the Right road sign is part of the Warning Signs category, which groups together signs with similar rules and functions.
Mastering Icelandic road signs means understanding subtle differences. Reviewing similar warning signs together, like 'Priority Junction Ahead from the Right', sharpens your sign recognition and aids theory test revision. This comparative study is key for accurate hazard perception and confident driving.

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An Accident is a hazard warning sign placed far enough in advance to let drivers adapt before reaching the danger. It does not by itself create a fixed manoeuvre, but it clearly signals that the road or traffic situation ahead needs earlier braking, steadier steering, and better lane discipline than an ordinary section of road. In practice, the right response is to finish major braking before the hazard, keep a smooth line through it, and avoid sudden reactions that could destabilise the vehicle. The warning is particularly important in Iceland because weather, darkness, snow, wind, and changing surfaces can make a familiar hazard much more severe.
Rough Road is a hazard warning sign placed far enough in advance to let drivers adapt before reaching the danger. It does not by itself create a fixed manoeuvre, but it clearly signals that the road or traffic situation ahead needs earlier braking, steadier steering, and better lane discipline than an ordinary section of road. In practice, the right response is to finish major braking before the hazard, keep a smooth line through it, and avoid sudden reactions that could destabilise the vehicle. The warning is particularly important in Iceland because weather, darkness, snow, wind, and changing surfaces can make a familiar hazard much more severe.
After reviewing the full list of Icelandic road signs, reinforce your learning with targeted practice. Explore our sign group categories or take a specific quiz to test your recognition and recall. Ensure you're fully prepared to identify and interpret all traffic signs for your upcoming driving theory exam.
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