Obstacle Marking Screen
The device marks an obstacle
When You See This Sign
When you see an obstacle marker you should reduce speed, read the marker's markings and pass the obstacle on the side indicated by the marking. Check oncoming traffic and any supplementary signs or signals before carrying out the maneuver.
Rules & Regulations
- An obstacle marker indicates there is a physical obstacle on or beside the roadway and should be noticed by road users.
- Pass the obstacle on the side indicated by the marker's markings or any supplementary guidance, and adjust your speed to the conditions.
- The marker itself does not automatically impose a duty to give way or an order to drive; follow any additional signs, road markings, or traffic rules applicable to the situation.
- At temporary roadworks where the marker is used there may be additional instructions (e.g., a flagger's signals or traffic lights) — always follow those first.
Tips for Drivers
- Read the marker's diagonal stripes: they show which side is free to pass — follow them in good time and position your vehicle safely.
- Reduce speed well in advance and carefully check for oncoming vehicles and unprotected road users before passing the narrowing.
- Be especially alert in darkness or poor visibility — many markers have reflectors or flashing lights; use these as supplementary guidance.
- If the passage appears too narrow for two vehicles, wait and let oncoming traffic pass or follow the local right-of-way rules.
Common Mistakes
- Assuming the marker automatically creates an obligation to give way — it indicates an obstacle, but the correct priority is determined by the situation and other signs.
- Ignoring the diagonal direction and trying to pass on the wrong side, which can cause dangerous encounters.
- Driving too fast through a marked narrowing without assessing whether there is enough space for both your vehicle and oncoming traffic.
Test Yourself
Road Sign: Obstacle Marking Screen
What should you understand when you see this marking device in front of an obstacle?
- A That an obstacle is marked and that you should take it into account when driving.
- B That you must come to a complete stop at the device.
- C That the road is one-way until the next intersection.
- D That overtaking is prohibited here.
Exam Tip
In the theory test you may get a question comparing an obstacle marker with a mandatory sign — remember the marker indicates an obstacle and shows which side to pass on, but does not itself impose a duty to give way; always check for additional signage.
Did You Know?
Obstacle markers are used for both permanent obstacles (e.g., traffic islands and central refuges) and temporary situations at roadworks. They are often fitted with reflectors or flashing lights to improve visibility in darkness and winter conditions.
Frequently Asked Questions
What do the diagonal stripes on the obstacle marker mean?
The diagonal stripes show which side of the marker is free to pass — follow the diagonal direction when choosing your passage. The stripes are intended to quickly indicate the safer side to drive on.
Do I always have to stop when I see an obstacle marker?
No, you do not always have to stop, but you should reduce speed and assess the situation. Only stop if required to avoid danger or if the passage is too narrow for both your vehicle and the oncoming vehicle.
Do other traffic rules apply when an obstacle marker is used at roadworks?
Yes, at roadworks the obstacle marker may be combined with temporary signs, traffic lights or flaggers that regulate traffic flow. Always follow these temporary instructions in preference to a general interpretation of the marker.
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