Tunnel Regulations

• Reversing and turning are prohibited in tunnels.
• Overtaking multi-lane motor vehicles is not allowed in areas where there is only one lane of traffic.
• Drivers of motor vehicles and bicycles must switch on their dipped headlights, even if the tunnel is illuminated.

• Vehicle drivers must stop in tunnels only in emergencies. The engine must be switched off immediately.
• The “Tunnel” signal indicates that special traffic rules apply within the tunnel.
• The “Maximum height” signal prohibits vehicles with a height (including load) exceeding the indicated value from entering. This signal is placed in front of underpasses, tunnels, galleries, and similar structures where vehicles taller than 4 meters cannot pass safely. It also serves as a distant signal at the last opportunity to bypass the obstacle.

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