TunnelAustria

Learn traffic rules with clear explanations and visual examples in our illustrated book, designed to make studying simple and engaging.


10. Tunnel

A tunnel is a covered passage that carries a road through or beneath an obstacle such as a hill, mountain, building, waterway or another transport route. Road tunnels may contain one or more traffic lanes and can carry traffic in one or both directions.

Driving in a tunnel requires particular attention because visibility, available escape routes and space for avoiding hazards are limited. Drivers should follow the applicable lighting, speed, lane and following-distance rules and pay attention to emergency exits, traffic signals and variable-message signs.

Tunnel
Henndorf bypass carrying road B1 through a tunnel east of the town. (Henndorf am Wallersee, Austria)
Wikimedia.org • Herzi_Pinki • CC BY-SA
What is a road tunnel?

A road tunnel is a covered passage that carries a road through or beneath an obstacle.

Should you use headlights in a tunnel?

Follow the local lighting rules and traffic signs. Many countries require dipped headlights in tunnels even during daylight, while general visibility rules may also require vehicle lights.

Should you increase your following distance in a tunnel?

Yes. Additional distance gives more time to react to sudden congestion, a breakdown or another hazard where escape space may be limited.

Can you stop or park in a tunnel?

Voluntary stopping and parking are generally prohibited or strongly restricted in road tunnels. Drivers should stop only where permitted or when traffic, an emergency or another unavoidable situation requires it.

Can you reverse or make a U-turn in a tunnel?

Normally this should not be done unless specifically authorised or directed by emergency or traffic-control personnel. Motorway tunnels are additionally subject to the normal motorway prohibitions on reversing and U-turns.

What should you do if traffic stops in a tunnel?

Keep a safe distance from the vehicle ahead, follow traffic signals and instructions and avoid blocking emergency access. Switch on hazard warning lights where appropriate to warn following traffic.

What should you do if your vehicle breaks down in a tunnel?

Move into an emergency bay or other safe position if possible, switch on the hazard warning lights and follow the tunnel's emergency procedures. Use an emergency telephone or contact the emergency services where necessary.

What should you do if there is a fire in a tunnel?

Follow the emergency signs and instructions immediately. If evacuation is necessary, leave the vehicle and use the indicated emergency exit rather than remaining in a dangerous traffic or smoke-filled area.

What are tunnel emergency exits?

Emergency exits provide a route away from the traffic tunnel during incidents such as a fire. Signs may indicate the nearest exit and the direction or distance to it.

Should you remove sunglasses before entering a tunnel?

Where necessary, removing dark sunglasses before entering can help your eyes adapt more quickly to the lower light level inside the tunnel.

Can speed limits change inside a tunnel?

Yes. Tunnels may have permanent or variable speed restrictions. Drivers must follow the speed limit currently indicated.

Can dangerous goods be restricted in tunnels?

Yes. Certain tunnels may restrict vehicles carrying dangerous goods because an incident in an enclosed space can create additional risks. Follow all applicable tunnel-category and dangerous-goods signs.

1 Austria 2 Motorway 3 Expressway 4 Residential area 5 Zone 6 Speed limit 7 Footpath 8 Bike path 9 Shared-use path 10 Tunnel 11 Cycling street 12 Pedestrian zone 13 One-way traffic 14 Quay 15 Slope 16 Bus lane 17 Bus stop 18 Dead end 19 Stop sign 20 Give way 21 Roundabout 22 Priority road 23 Give way to oncoming traffic 24 Railway crossing 25 Mandatory direction 26 Turn prohibition 27 School area 28 Overtaking 29 Crossing animals 30 Wrong-way driving 31 Roadworks 32 Height limit 33 Width limit 34 Weight limit 35 Priority at the next junction 36 Traffic lights 37 Pedestrian lights 38 Speed feedback 39 Driving licence 40 Location marker 41 Traffic mirror 42 Emergency telephone 43 International border 44 Cycling route 45 Parking 46 No parking 47 No stopping 48 Disabled parking 49 Reversing 50 Uncontrolled crossroad 51 Road surface 52 Provisional licence 53 Runaway truck ramp 54 City limit 55 Cyclist crossing 56 Horn 57 Licence plate 58 Charging station 59 Dangers 60 Cyclist 61 Bus 62 Police 63 Ambulance 64 Police signals 65 European emission standard 66 Pothole 67 Private property 68 Path 69 Particulates 70 Air pollution 71 Rush hour 72 Road code 73 Street gutter 74 Cargo bike 75 Forestry vehicle 76 Construction vehicle 77 Semi-trailer truck 78 Trolleybus 79 Speed pedelec 80 Delivery vehicle 81 Idling 82 Tow truck 83 Four-wheel drive 84 No vehicles 85 Bicycle 86 Motorcycle equipment 87 Tram 88 Rail track 89 Caravan 90 Trailer 91 Tow hitch 92 Fire truck 93 Siren 94 Convoy 95 Emergency vehicle lighting 96 Agricultural machinery 97 Electric bicycle 98 Electric vehicle 99 Pedelec 100 Quadricycle ...