The M10 road marking, a combination of a broken and a solid line, signifies different lane-changing rules for traffic approaching from opposite sides. If the solid line is on your side, you must not cross it to change lanes or overtake, as it indicates a restriction for your direction. This marking is crucial for managing traffic flow and preventing dangerous manoeuvres, especially on two-way roads. Always pay attention to the line closest to your vehicle to understand your obligations.
Learn the key details of the M10 - Broken Line with Solid 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 is used where lane changing must be restricted for one direction or one side of the road. The solid line applies to the traffic on the side nearest the solid line, meaning those drivers must not cross it. The adjacent broken line indicates that the opposite side may have different permissions, depending on the layout. It is commonly used to manage overtaking opportunities safely on two way roads.
A combined marking showing a broken line next to a solid line. Drivers on the solid line side must not change lanes across it.
Get clear, practical answers to the most common questions about the M10 - Broken Line with Solid 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 M10 marking indicates that lane changing is restricted for traffic on the side with the solid line. If the solid line is next to your vehicle, you are prohibited from crossing it to change lanes or overtake. The broken line on the other side may permit lane changes if safe and legally allowed.
You must determine which line is closest to your lane. If it's the solid line, you must remain in your current lane and refrain from crossing it. If the broken line is closer, you may be permitted to change lanes or overtake, provided it is safe and no other signs or rules prohibit it.
From the side with the solid line, you are prohibited from crossing it to change lanes, overtaking other vehicles, or performing any late weaving across the boundary into the adjacent lane. This ensures traffic flows safely in the direction with lane change restrictions.
No, if the solid line is adjacent to your lane, you must not cross it for lane changes or overtaking. The solid line clearly indicates a prohibition for traffic on that side of the marking to maintain safety and traffic order.
A common trap is assuming the rules are the same for both directions. Learners sometimes forget to check which line is closest to them, leading to confusion about whether lane changes are allowed or prohibited. Always identify the line nearest to your vehicle.
You'll typically see the M10 marking on two-way roads where overtaking is permitted only in one direction, or on roads where lane usage needs to be differentiated between directions. It's often used to manage traffic flow near junctions, bends, or other areas where lane changes might be hazardous.
A clear reference image of the M10 - Broken Line with Solid Line road sign used in Sweden.

The M10 - Broken Line with Solid Line road sign may also be known by these alternative names or terms.
The M10 - Broken Line with Solid Line road sign is part of the Road Markings (M) category, which groups together signs with similar rules and functions.