Turn prohibitionWorldwide

An introduction to the traffic rules and road signs of Worldwide. 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.


38. Turn prohibition

A turn prohibition prevents drivers from turning in the direction indicated by a traffic sign. It may prohibit a left turn, a right turn or a U-turn at an intersection or along a specified section of road.

Drivers must continue along a permitted route and follow any lane arrows or mandatory-direction signs. A turn prohibition does not itself determine priority or speed, and any exemption for cyclists, public transport or other road users must be expressly indicated.

Turning left prohibited for vehicles above 6 tonnes. (Haute-Savoie, France)
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a turn prohibition?

A turn prohibition prevents drivers from making a particular turn or change of direction indicated by a traffic sign.

🔗 wetten.overheid.nl • Vienna Convention on Road Signs and Signals, Annex 1, section D II.1 and section C II.2–3; sign-system reference

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 5, 14, 16 and 18; international framework subject to national law

Is a prohibited turn the same as a mandatory direction?

No. A prohibition sign identifies a movement that may not be made. A mandatory-direction sign identifies the direction or directions that must be followed.

🔗 wetten.overheid.nl • Vienna Convention on Road Signs and Signals, Annex 1, section D II.1 and section C II.2–3; sign-system reference

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 5, 14, 16 and 18; international framework subject to national law

Does a turn prohibition change priority?

No. Drivers making another permitted movement must still follow traffic lights, priority signs and the ordinary rules concerning pedestrians, cyclists and other vehicles.

🔗 wetten.overheid.nl • Vienna Convention on Road Signs and Signals, Annex 1, section D II.1 and section C II.2–3; sign-system reference

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 5, 14, 16 and 18; international framework subject to national law

Does a turn prohibition impose a speed limit?

No. The applicable general, zonal or posted speed limit remains in force.

🔗 wetten.overheid.nl • Vienna Convention on Road Signs and Signals, Annex 1, section D II.1 and section C II.2–3; sign-system reference

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 5, 14, 16 and 18; international framework subject to national law

Must you use an indicator for a permitted turn?

Yes, where local law requires it. Signal early enough to communicate your intention and stop signalling after completing the movement.

🔗 wetten.overheid.nl • Vienna Convention on Road Signs and Signals, Annex 1, section D II.1 and section C II.2–3; sign-system reference

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 5, 14, 16 and 18; international framework subject to national law

1 Worldwide 2 Motorway 3 Expressway 4 Residential area 5 Built-up area 6 Zone 7 Speed limit 8 Minimum speed 9 Advisory speed 10 Footpath 11 Bike path 12 Shared-use path 13 Separated path 14 Pedestrian warning 15 Tunnel 16 Bridge 17 Cycling street 18 Pedestrian zone 19 Speed bump 20 Toll road 21 Customs 22 One-way traffic 23 Quay 24 Slope 25 Bus lane 26 Bus stop 27 Dead end 28 Stop sign 29 Give way 30 Roundabout 31 Priority road 32 Road narrowing 33 Priority over oncoming traffic 34 Give way to oncoming traffic 35 Pedestrian crossing 36 Railway crossing 37 Mandatory direction 38 Turn prohibition 39 School area 40 Overtaking 41 Crossing animals 42 Slippery road 43 Rockfall 44 Aircraft 45 Curve 46 Chevron 47 Wrong-way driving 48 Roadworks 49 Crosswind 50 Height limit 51 Width limit 52 Length limit 53 Weight limit 54 Radar speed sign 55 Selective barriers 56 Low-emission zone 57 Intersection direction sign 58 Priority at the next junction 59 Traffic lights 60 Traffic lights warning 61 Pedestrian lights 62 Road markings 63 All-way stop 64 Junction layout 65 Climbing lane 66 Bike box 67 Left-hand traffic 68 Speed feedback 69 Driving licence 70 Location marker 71 Road number 72 Countdown markers 73 Public toilet 74 Rest area 75 Traffic mirror 76 Emergency telephone 77 International border 78 Pedestrian underpass 79 Cycling route 80 End of restriction 81 Parking 82 No parking 83 No stopping 84 Parallel parking 85 Park and ride 86 Kiss and ride 87 Alternate-side parking 88 Parking meter 89 Parking disc 90 Disabled parking 91 Traffic management 92 Merging 93 Reversing 94 U-turn 95 Carpool 96 Traffic jam 97 Detour 98 Uncontrolled crossroad 99 Road surface 100 Advisory cycle lane ...