The White Road Number Sign (723.13) is a vital directional traffic sign used in Iceland to guide you along specific routes and to destinations. It helps you identify the correct lane or route well in advance of junctions, roundabouts, or road splits, ensuring you can maintain a smooth flow of traffic. By reading these signs early and positioning yourself correctly, you avoid last-minute, potentially dangerous manoeuvres.
Mastering the interpretation of this white road number sign is crucial for navigating Icelandic junctions and route changes efficiently. Proper recognition ensures you can confidently select the correct lane, making your theory test revision more effective and your driving safer on all Icelandic roads.
White Road Number Sign belongs to the directional signing system used before and at junctions, roundabouts, forks, local destinations, and route changes. These signs help drivers match place names, route numbers, arrows, and lane information to the real road layout ahead. Good use of the sign means reading it early, positioning in the correct lane while there is still time, and continuing ahead if a safe late change is no longer possible. That habit prevents hard braking, swerving, and wrong-lane exits.
This sign guides drivers through direction guidance to destinations, routes, or lanes. Its role is to help you recognise the correct route or lane in time, so you can keep moving smoothly without a last-second correction.
Get clear, practical answers to the most common questions about the 723.13 - White Road Number Sign 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.
The primary purpose of the White Road Number Sign is to provide clear route guidance. It helps drivers recognise the correct route number, destination, or lane ahead of time, allowing for smooth and safe navigation through complex road layouts like junctions and roundabouts.
You should read the sign as early as possible. Use the information, such as route numbers and destination names, to confirm your intended path. Position your vehicle in the correct lane before reaching the decision point, especially if continuing straight ahead is your plan. If you realise too late that you need to change lanes, it is safer to continue on your current path.
Common mistakes include failing to read the sign early enough, leading to sudden lane changes or swerving. Other errors involve ignoring the sign and relying solely on GPS, forcing other traffic to brake, or stopping in a live lane to decipher the directions. The sign is for early planning, not last-minute decisions.
While you might be familiar with the area, it's always best practice to acknowledge and follow the guidance provided by the White Road Number Sign. These signs are placed to help all drivers, including locals, maintain a smooth and predictable flow of traffic. Ignoring them can still lead to unexpected situations for other road users.
Primarily, the White Road Number Sign is for motorised vehicle drivers to indicate routes and lanes. While all road users benefit from predictable traffic flow, this specific sign's function is to aid in route selection and lane positioning for those navigating by road number and destination.
A clear reference image of the 723.13 - White Road Number Sign road sign used in Iceland.

The 723.13 - White Road Number Sign road sign may also be known by these alternative names or terms.
The 723.13 - White Road Number Sign road sign is part of the Direction and Route Guidance Signs category, which groups together signs with similar rules and functions.
Mastering Iceland's road signs requires distinguishing between similar signals. By comparing signs like this White Road Number Sign with others in its category, you improve sign recognition and avoid common errors during your theory test revision.

Master Your Route with the Icelandic Route Confirmation Sign (701.2)

Understand the Local Route Confirmation Sign (701.3) for Clear Directional Guidance

This Text Panel sign confirms your local route details at junctions and forks.

Confirm your tourist route and lane with this text panel sign.

Follow the Tourist Route Confirmation Sign (701.4) to stay on track.

Navigate Confidently with the Straight-Ahead Local Direction Sign (703.1)

Follow the Text Panel for Straight-Ahead Local Direction Sign to stay on course.

Master the Diagrammatic Local Direction Sign (703.2) for clear route guidance.
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.
View All Icelandic Road Signs