TunnelSwitzerland

An introduction to the traffic rules and road signs of Switzerland. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.


11. 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
End of expressway and advance warning of a tunnel on national road 9S. (Valais, Switzerland)
Wikimedia.org • Marc Mongenet • CC BY-SA
What should I check before entering a tunnel in Switzerland?

Use dipped headlights in road tunnels. Daytime running lights are not a substitute for the required tunnel lighting. Follow the entrance signals and maintain a safe following distance.

🔗 fedlex.admin.ch • OCR Arts 4a,30,35,39; OSR Art 45: tunnel controls

Does a tunnel sign in Switzerland set a universal speed limit?

No single speed can be read from the tunnel pictogram. Apply the road’s relevant limit and any permanent or electronic speed restriction, and drive more slowly when visibility, queues or another hazard require it.

🔗 fedlex.admin.ch • OCR Arts 4a,30,35,39; OSR Art 45: tunnel controls

Start of a tunnel. Start of a tunnel.

English • Traffic sign 4.07 • Tunnel.

Deutsch • Verkehrssignal 4.07 • Tunnel.

Français • Signal 4.07 • Tunnel.

Italiano • Segnale 4.07 • Galleria.

Sources

🔗 Commons.wikimedia.org
🔗 Fedlex.admin.ch • SSV, Anhang 2 (DE)

🔗 Fedlex.admin.ch • OSR, annexe 2 (FR)

🔗 Fedlex.admin.ch • OSStr, allegato 2 (IT)

SVG source: Commons.wikimedia.org • Original SVG
Bundesamt für Strassen (ASTRA) • Public domain • Original revision 2017-06-30. Wikimedia original unmodified.

Artwork reviewed against the Swiss signalling ordinance, version 1 October 2026, annex 2: Fedlex.admin.ch • Signal 4.07, PDF page 113. Catalogue-equivalent illustration; intentional update from the previous PNG. This is an educational illustration, not a manufacturing specification.

Is every tunnel in Switzerland open to pedestrians and cyclists?

No. Check the road category and access signs before entering. A motorway tunnel, a vehicle-restricted tunnel and a purpose-built walking or cycling underpass have different access arrangements. Emergency evacuation routes do not establish ordinary public access.

🔗 fedlex.admin.ch • OCR Arts 4a,30,35,39; OSR Art 45: tunnel controls

1 Switzerland 2 Motorway 3 Expressway 4 Residential area 5 Zone 6 Speed limit 7 Minimum speed 8 Footpath 9 Bike path 10 Shared-use path 11 Tunnel 12 Pedestrian zone 13 Customs 14 One-way traffic 15 Slope 16 Bus lane 17 Bus stop 18 Dead end 19 Stop sign 20 Give way 21 Roundabout 22 Priority road 23 Road narrowing 24 Priority over oncoming traffic 25 Give way to oncoming traffic 26 Pedestrian crossing 27 Railway crossing 28 Mandatory direction 29 Turn prohibition 30 School area 31 Overtaking 32 Crossing animals 33 Slippery road 34 Rockfall 35 Aircraft 36 Curve 37 Chevron 38 Wrong-way driving 39 Roadworks 40 Crosswind 41 Height limit 42 Width limit 43 Length limit 44 Weight limit 45 Intersection direction sign 46 Priority at the next junction 47 Traffic lights 48 Traffic lights warning 49 Pedestrian lights 50 Road markings 51 Junction layout 52 Driving licence 53 Location marker 54 Road number 55 Countdown markers 56 Traffic mirror 57 Emergency telephone 58 International border 59 Pedestrian underpass 60 Cycling route 61 End of restriction 62 Parking 63 No parking 64 No stopping 65 Parking disc 66 Reversing 67 U-turn 68 Traffic jam 69 Detour 70 Uncontrolled crossroad 71 Road surface 72 Exit 73 Information point 74 Horse riding 75 Emergency exit 76 Runaway truck ramp 77 Radio service 78 Oversize load 79 City limit 80 Hospital 81 Parking garage 82 Passing place 83 Pedestrian overpass 84 Axle weight limit 85 Licence plate 86 Charging station 87 Dangers 88 Weather 89 Turn on red 90 Pedestrian 91 Cyclist 92 Moped 93 Motorcycle 94 Car 95 Truck 96 Bus 97 Police 98 Ambulance 99 Tailgating 100 European emission standard ...