Horizontal Line
The signal indicates stop for the traffic lane
When You See This Sign
When you see a red horizontal bar over your lane you should not continue in that lane. Move to the nearest free lane when it is safe and follow further signals until the lane is reopened.
Rules & Regulations
- A red horizontal bar across a lane means the lane is closed and you may not drive in it.
- The signal applies only to the lane or lanes directly above which it is mounted; other lanes may be open.
- You must change lanes in good time and only when it is safe; sudden braking in the closed lane is prohibited.
- Follow the signal until it is replaced by another signal or road sign indicating that the lane is open again.
Tips for Drivers
- Watch the overhead signals well in advance, especially before tunnels, bridges and exits where lane closures often occur.
- Plan and signal lane changes early; check your mirrors and blind spot before you change.
- Do not continue in a lane marked with a horizontal bar even if it looks empty — wait until you can safely move into an open lane.
- Be aware of following traffic and avoid sudden braking that could cause a rear-end collision.
Common Mistakes
- Thinking that the signal applies to the full width of the road instead of only the lane it is above.
- Trying to drive in a closed lane because it appears free at the moment.
- Braking suddenly in the closed lane instead of changing in good time to an open lane.
Test Yourself
Road Sign: Horizontal Line
What does a horizontal bar in the lane signal indicate?
- A Stop for the current lane
- B Free to proceed in the lane
- C Only buses may use the lane
- D Serves as a warning signal for cyclists
Exam Tip
In theory exam questions they often test that the signal applies only to the lane or lanes it is above — choose answers that state the lane is closed and must be vacated in good time.
Did You Know?
The horizontal bar is often used in lane control systems on motorways, in tunnels and on bridges to quickly close one or more lanes in the event of accidents, roadworks or other obstacles.
Frequently Asked Questions
Does the signal apply to all vehicles?
Yes, the signal applies to all road users in the affected lane. Some exceptions may apply for emergency vehicles on an urgent call, but ordinary road users must follow the signal.
Can I pass if the lane looks empty?
No, you may not drive in a lane marked with a horizontal bar even if it appears empty. The lane is formally closed and must not be used until the signal shows it is open.
What should I do if the signal lights up suddenly above my lane?
If possible, change to an adjacent open lane in good time, checking mirrors and your blind spot. Avoid sudden braking; adjust calmly to the traffic situation.
How can I tell that the signal applies to my lane?
Signal heads with a horizontal bar are positioned directly above each lane so it is clear which lane is closed. There are often arrows or other signs that complement the signal.
Practice more in the app
Study Swedish road signs and driving theory in English. 314 signs with rules, tips and quizzes.