Tunnel
The sign indicates that you are entering a tunnel
When You See This Sign
When you encounter the 'Tunnel' sign you should immediately prepare for darker and narrower conditions: switch on the vehicle's low beam, remove sunglasses and keep a safe distance to other vehicles. Follow the speed limit and any instructions inside the tunnel and avoid unnecessary lane changes or stops.
Rules & Regulations
- Sign E26 indicates you are entering a tunnel and that special traffic rules in the tunnel apply.
- Switch on the vehicle's low beam (dipped headlights) before entering or driving through the tunnel to improve visibility and conspicuity.
- Stopping or parking in a tunnel is prohibited, except in an emergency or if specific instructions permit it.
- Follow the speed limit and other instructions (e.g., lanes, distance, traffic signals) that apply in the tunnel.
Tips for Drivers
- Switch on the low beam before you drive into the tunnel and remove sunglasses — your eyes need to adapt quickly to lower light.
- Keep extra distance to the vehicle ahead because visibility and braking distance can be affected in the tunnel.
- Avoid lane changes and overtaking in the tunnel unless it is necessary or explicitly permitted.
- Pay attention to signs inside the tunnel that indicate emergency exits, fire-fighting equipment (e.g., fire hose reels) or any speed adjustments.
Common Mistakes
- Thinking that high beams are OK in the tunnel — high beams can dazzle oncoming drivers.
- Thinking that short tunnels do not require headlights — even short tunnels can have sharp light differences and require low beam.
- Stopping or parking in the tunnel for minor problems instead of driving on to an exit or emergency area and using hazard warning lights.
Test Yourself
Road Sign: Tunnel
What does this sign mean for your equipment and behavior in the vehicle?
- A You are entering a tunnel — turn on lights and follow the tunnel rules
- B You are driving over a bridge — check for wind sensitivity
- C You are passing an underpass for pedestrians
- D You are approaching a smoke-free zone
Exam Tip
On the theory test, questions may focus on light use or the ban on stopping in tunnels: remember to always use low beam (not high beam) and that stopping/parking in a tunnel is only allowed in emergencies.
Did You Know?
Sign E26 is an instruction sign that is always placed at the tunnel entrance. It commonly appears on motorways and national roads where the road passes under rock or through an artificial tunnel, and it is often supplemented with additional signs indicating the tunnel's length or specific rules.
Frequently Asked Questions
Do I have to switch on the lights in the tunnel even during the day?
Yes, you should switch on the low beam when you drive into the tunnel because the light level is often significantly lower than outdoors. It improves both your vision and your visibility to other road users.
May I stop if my vehicle has problems in the tunnel?
If the vehicle has problems, you should first try to drive to an exit or designated emergency area. If that is not possible, stop as far to the side as possible, use hazard warning lights and place a warning triangle if it is safe to do so.
Can I use high beams in the tunnel for better visibility?
No, high beams can dazzle oncoming drivers and are therefore unsuitable in tunnels. Always use low beam or daytime running lights/position lights as required for good visibility.
What does an additional sign showing the tunnel's length under the sign mean?
An additional sign that shows the tunnel's length informs you how long the rules may apply. Longer tunnels may have more restrictions or special safety arrangements that you should pay attention to.
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