The M18 is a road marking that warns you that a requirement to yield or stop applies further down the road in your direction of travel. It's designed to give you ample time to adjust your speed and plan your approach to an upcoming junction or control point. Seeing this marking means you should immediately start looking for the relevant yield or stop sign and line, and be ready to reduce your speed or stop completely if necessary, preparing for traffic or pedestrians.
Learn the key details of the M18 - Advance Warning of Yield or Stop 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 prepares drivers for an upcoming requirement to yield or stop. It is placed before the junction or control point so you have time to adjust speed and plan your approach. It improves safety by reducing sudden braking and late decision making. You should begin scanning for the relevant sign, traffic, and vulnerable road users as soon as you see this marking.
A marking that warns a yield obligation or stop obligation applies further ahead in your direction of travel.
Get clear, practical answers to the most common questions about the M18 - Advance Warning of Yield or Stop 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 M18 marking is a warning that you will soon encounter a requirement to either yield (give way) or stop at an upcoming junction or traffic control point. It's not the actual point where you need to yield or stop, but a heads-up to prepare for it.
Upon seeing the M18 marking, you should reduce your speed and increase your attention. Start scanning ahead for the actual yield or stop sign and the corresponding line on the road. Be prepared to react to traffic conditions and potentially stop.
No, the M18 is an advance warning marking. It tells you that a yield or stop obligation is coming up, but it is not the obligation itself. You will see a separate yield line or stop line, along with the corresponding sign, closer to the actual intersection or control point.
A common mistake is to think the M18 marking itself requires you to stop or yield immediately. Learners might also fail to actively scan for the upcoming junction and signs, assuming they can proceed without issue because they haven't reached the intersection yet. Always remember it's a warning to prepare.
No, you should reduce your speed. The purpose of the M18 marking is to give you time to prepare for a yield or stop situation. Maintaining high speed and reacting late can lead to dangerous situations, especially if you unexpectedly encounter traffic or need to stop suddenly.
A clear reference image of the M18 - Advance Warning of Yield or Stop road sign used in Sweden.

The M18 - Advance Warning of Yield or Stop road sign may also be known by these alternative names or terms.
The M18 - Advance Warning of Yield or Stop road sign is part of the Road Markings (M) category, which groups together signs with similar rules and functions.