Tunnel
In tunnels, reversing and turning are prohibited, as is overtaking multi-lane motor vehicles in a direction of travel 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.
ehicle drivers must stop in tunnels only in case of emergency. The engine must be switched off immediately
The “Tunnel” signal indicates a route running through a tunnel on which the special rules for traffic in tunnels apply.
The signal “Maximum height” excludes vehicles whose height with the load exceeds the indicated value. It is placed in front of underpasses, tunnels, galleries, covered bridges, structures protruding into the roadway and the like at the obstacle itself, if vehicles of 4 m height cannot pass the place without danger. It is placed as a distant signal at the last possibility of bypassing.
