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Road narrows
The sign warns that the road narrows from the left side.
When you see the sign
Be prepared for the left edge of the road to narrow in, making the carriageway narrower from the left side. Adjust your speed, position the car clearly within your lane and assess early whether there is enough room for oncoming traffic.
Rules
- Sign 106.3 warns only that the road narrows from the left side; it does not mean that the road becomes narrower from both sides.
- The sign does not itself introduce a new speed limit, but you must choose a speed that allows you to stop and pass oncoming traffic safely on the narrower section.
- The sign does not regulate priority. Any obligation to give way at the narrowing must follow from other signs, road markings or the specific traffic situation.
- You must keep a sufficient distance from oncoming vehicles and, if necessary, stop if passing cannot be done safely.
Tips
- Look for where the left edge of the road begins to narrow in, and plan your position before you reach the narrowing.
- Check for oncoming traffic early, especially if the road has no centre line or the narrowing is just after a bend.
- Avoid overtaking just before or through the narrowing if space or visibility is limited.
- Pay extra attention to wide vehicles, cyclists and soft road edges that may reduce the available width further.
Common misconceptions
- Confusing the sign with 106.2, which warns that the road narrows from the right side.
- Thinking that the sign automatically gives the driver priority over oncoming traffic.
- Interpreting the diagonal lines as a dangerous bend to the right or left, even though they show road edges that are drawing closer together.
Test yourself
Easy
What does this sign warn about?
- AThe road has a dangerous bend to the left.
- BThe road becomes narrower from the right side.
- CThe road becomes narrower from the left side.
- DThe road becomes narrower from both sides.
Medium
You are approaching the stretch indicated by the sign. An oncoming vehicle makes you unsure whether you can pass safely. What should you do?
- AMaintain the same speed because the sign does not change the speed limit.
- BReduce your speed and, if necessary, stop before passing.
- CMove closer to the oncoming vehicle to make use of the road width.
- DContinue first because the sign automatically gives you forkjørsrett.
Hard
There are no other signs or road markings at the narrowing. Which statement about vikeplikt is correct?
- AThe sign requires both directions of travel to stop before the narrowing.
- BThe sign gives you forkjørsrett because the left edge of the road moves inward.
- CThe sign imposes vikeplikt on you because the left edge of the road moves inward.
- DThe sign does not regulate vikeplikt; this must be determined by other circumstances.
Theory test tip
Look closely at which of the black road-edge lines bends inward. On sign 106.3, it is the left side that narrows in; the sign imposes neither an obligation to give way nor a specific speed limit.
Did you know
Sign 106 comes in three variants: narrowing from both sides, from the right side or from the left side. Variant 106.3 is used, among other places, where the left edge of the road moves in at bridges, roadworks or permanent changes to the road width.
Frequently asked questions
Does the sign mean that I must give way to oncoming traffic?
No, the sign is a warning sign and does not establish an obligation to give way. You must assess the available space, other signs and the traffic situation, and stop if passing safely is not possible.
Do I always have to brake when I see sign 106.3?
The sign does not require any specific reduction in speed. Nevertheless, you must adjust your speed if the road width, visibility, road conditions or oncoming traffic makes this necessary.
What is the difference between signs 106.3 and 106.1?
Sign 106.3 warns that the road narrows only from the left side. Sign 106.1 warns that the road becomes narrower from both sides.
Can I overtake after this sign?
The sign does not introduce a separate no-overtaking restriction. However, overtaking must be avoided if the narrowing leaves too little space or visibility for the manoeuvre to be carried out safely.
Practise for the theory test
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