The M12 sign, a Center Line combined with a Warning Line, is a crucial road marking that signals a need for extra caution. It indicates that crossing the warning line is unsuitable due to traffic conditions, such as limited visibility or upcoming curves. This marking also serves to prepare you for a subsequent solid line, advising against overtaking or crossing as it signifies increased risk. Always respect this sign by holding your lane and adjusting your speed to match the challenging conditions, prioritising safety over immediate transit.
Learn the key details of the M12 - Center Line with Warning Line road sign, including its function, what it communicates to drivers, and how it applies in real traffic situations in Sweden. Use this overview to understand the sign clearly and recognise it confidently during the Swedish driving theory exam.
This marking combines standard separation with an enhanced caution message where crossing would be risky. The warning component signals that overtaking or crossing should be avoided because of visibility, alignment, or conflict risk. It can also be used to prepare drivers for a coming solid line restriction. The goal is to reduce head on conflicts and discourage dangerous lane encroachment.
A center line combined with a warning line. It indicates it is unsuitable to cross the warning line due to traffic conditions and may also warn of an upcoming solid line.
Get clear, practical answers to the most common questions about the M12 - Center Line with Warning Line 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 Swedish driving theory exam in Sweden.
The M12 marking combines a standard center line with a warning line. It signifies that crossing is not advisable due to potential hazards like poor visibility or road alignment. It also acts as a precursor to a solid line, reinforcing the need to avoid overtaking or crossing.
Even if technically possible, the M12 marking indicates a location where crossing is risky. It's best to avoid crossing the warning side of this marking unless absolutely necessary and safe. The primary instruction is to hold your lane and wait for a clearer, safer section.
This marking is vital for preventing head-on collisions and dangerous lane encroachments. By warning drivers of potentially unsafe crossing points and upcoming solid lines, it encourages more cautious driving behaviour, especially in areas with reduced visibility or complex road geometry.
A common trap is assuming that because the line isn't fully solid, it's always safe to cross. The 'warning line' component of the M12 specifically advises against casual crossing. Learners might also underestimate the risk if they can see a reasonable distance ahead, forgetting that visibility can change rapidly or that the marking warns of a stricter upcoming restriction.
When you see the M12 marking, you should reduce your speed, increase your awareness, and prepare to maintain your lane. Avoid overtaking or crossing the warning line unless visibility and traffic conditions are unequivocally safe, and be ready for a solid line to appear shortly.
A clear reference image of the M12 - Center Line with Warning Line road sign used in Sweden.
The M12 - Center Line with Warning Line road sign may also be known by these alternative names or terms.
The M12 - Center Line with Warning Line road sign is part of the Road Markings (M) category, which groups together signs with similar rules and functions.