Width limitSwitzerland

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.


42. Width limit

A width limit prohibits vehicles or vehicle combinations whose total width exceeds the value shown from entering or passing a road section, bridge, tunnel, gateway or other narrow passage. The width includes the vehicle’s load and any equipment or objects extending from its sides.

Drivers must know the maximum travelling width of their vehicle and load, observe advance warnings and use an alternative route when necessary. They should never enter when sufficient lateral clearance is uncertain.

Width limit
3-metre width-limit sign. (Switzerland)
Wikimedia.org • Marc Mongenet • CC BY-SA
What does a posted vehicle-width restriction mean in Switzerland?

The maximum-width sign prohibits passage by a vehicle whose width, including its load, exceeds the stated limit. Specific vehicle classes have an exception for roads signed 2.30 m under the Traffic Rules Ordinance; do not assume an ordinary car or van is exempt.

🔗 fedlex.admin.ch • Switzerland: OSR article 21(1); OCR article 64(2); LCR article 27

🔗 fedlex.admin.ch • Switzerland: Traffic Rules Ordinance, state 1 October 2026

🔗 fedlex.admin.ch • Switzerland: Road Traffic Act, state 1 July 2026

Vehicles wider than indicated prohibited. Vehicles wider than indicated prohibited.

English • Traffic sign 2.18 • Maximum width.

Deutsch • Verkehrssignal 2.18 • Höchstbreite.

Français • Signal 2.18 • Largeur maximale.

Italiano • Segnale 2.18 • Larghezza massima.

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 2017-07-04. Wikimedia original unmodified.

Artwork reviewed against the Swiss signalling ordinance, version 1 October 2026, annex 2: Fedlex.admin.ch • Signal 2.18, PDF page 105. Catalogue-equivalent illustration; intentional update from the previous PNG. This is an educational illustration, not a manufacturing specification.

How should you check the width of a loaded vehicle in Switzerland?

Check the vehicle width including its load against the signed limit. Allow physical space for projecting fittings such as mirrors as well. Any specific legal exception must actually apply to your vehicle; it does not guarantee safe clearance.

🔗 fedlex.admin.ch • Switzerland: OSR article 21(1); OCR article 64(2); LCR article 27

🔗 fedlex.admin.ch • Switzerland: Traffic Rules Ordinance, state 1 October 2026

🔗 fedlex.admin.ch • Switzerland: Road Traffic Act, state 1 July 2026

Can a driver ignore a width restriction if the road looks wide enough in Switzerland?

No. A regulatory width limit must be obeyed unless an applicable exemption or authorised arrangement permits entry. Check your route before driving a wide van, trailer or load through a narrow town, bridge or roadworks section.

🔗 fedlex.admin.ch • Switzerland: OSR article 21(1); OCR article 64(2); LCR article 27

🔗 fedlex.admin.ch • Switzerland: Traffic Rules Ordinance, state 1 October 2026

🔗 fedlex.admin.ch • Switzerland: Road Traffic Act, state 1 July 2026

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 ...