RoadworksWallonia

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


35. Roadworks

Roadworks are construction, maintenance, repair or inspection activities carried out on or beside a road. They may temporarily change the road layout, lane widths, speed limits, priority, permitted directions and facilities for pedestrians or cyclists.

Drivers must follow the temporary signs, traffic lights, barriers, road markings and instructions from authorised personnel. They should reduce speed, increase their following distance and remain prepared for narrow lanes, stopped traffic, workers, machinery and sudden changes in the route.

Roadworks
Roadworks warning sign in Anthisnes. (Liège, Belgium)
Wikimedia.org • Jeanhousen • CC BY-SA
Which Belgian sign warns of roadworks?

Traffic sign A31 warns that roadworks are being carried out on or beside the public road.

🔗 codex.vlaanderen.be • Belgian Road Code — articles 4–6, 9.1.2, 10, 12.4, 12bis, 13, 62bis, 66.4 (A31), 73 and 78

🔗 wegcode.be • Belgian Road Code of 1 December 1975 — articles 4–6, 9.1.2, 10, 12.4, 12bis, 13, 62bis, 66.4 (A31), 73 and 78

Must you reduce speed after a Belgian roadworks warning sign?

Yes, when necessary. Drivers must adapt their speed to the temporary layout, traffic, workers, machinery, visibility and condition of the road.

🔗 codex.vlaanderen.be • Belgian Road Code — articles 4–6, 9.1.2, 10, 12.4, 12bis, 13, 62bis, 66.4 (A31), 73 and 78

🔗 wegcode.be • Belgian Road Code of 1 December 1975 — articles 4–6, 9.1.2, 10, 12.4, 12bis, 13, 62bis, 66.4 (A31), 73 and 78

What if your lane ends at Belgian roadworks?

Observe the lane-reduction signs and markings. In flowing traffic, changing lanes is a manoeuvre and you must give way to drivers already using the target lane.

🔗 codex.vlaanderen.be • Belgian Road Code — articles 4–6, 9.1.2, 10, 12.4, 12bis, 13, 62bis, 66.4 (A31), 73 and 78

🔗 wegcode.be • Belgian Road Code of 1 December 1975 — articles 4–6, 9.1.2, 10, 12.4, 12bis, 13, 62bis, 66.4 (A31), 73 and 78

What should cyclists do when a bike path is closed?

Follow the signed temporary route. When leaving an obstructed bike path, check traffic carefully and make the lateral movement safely.

🔗 codex.vlaanderen.be • Belgian Road Code — articles 4–6, 9.1.2, 10, 12.4, 12bis, 13, 62bis, 66.4 (A31), 73 and 78

🔗 wegcode.be • Belgian Road Code of 1 December 1975 — articles 4–6, 9.1.2, 10, 12.4, 12bis, 13, 62bis, 66.4 (A31), 73 and 78

1 Wallonia 2 Motorway 3 Expressway 4 Residential area 5 Built-up area 6 Zone 7 Speed limit 8 Bike path 9 Cycling street 10 Pedestrian zone 11 Speed bump 12 Customs 13 One-way traffic 14 Quay 15 Slope 16 Bus lane 17 Dead end 18 Stop sign 19 Give way 20 Roundabout 21 Priority road 22 Road narrowing 23 Priority over oncoming traffic 24 Give way to oncoming traffic 25 Pedestrian crossing 26 Railway crossing 27 Mandatory direction 28 Turn prohibition 29 School area 30 Crossing animals 31 Rockfall 32 Curve 33 Chevron 34 Wrong-way driving 35 Roadworks 36 Height limit 37 Width limit 38 Weight limit 39 Radar speed sign 40 Selective barriers 41 Intersection direction sign 42 Priority at the next junction 43 Traffic lights 44 Pedestrian lights 45 Driving licence 46 Location marker 47 Traffic mirror 48 International border 49 Cycling route 50 Parking 51 No parking 52 Kiss and ride 53 Parking meter 54 Traffic management 55 Reversing 56 Uncontrolled crossroad 57 Road surface 58 Ring road 59 Cycle highway 60 Licence plate 61 Charging station 62 Dangers 63 Turn on red 64 Identity card 65 Fire risk 66 Pedestrian 67 Moped 68 Car 69 Truck 70 Bus 71 Police 72 Ambulance 73 Tram lights 74 European emission standard 75 Pothole 76 Public square 77 Path 78 Particulates 79 Air pollution 80 Rush hour 81 Road code 82 Street gutter 83 Cargo bike 84 Forestry vehicle 85 Construction vehicle 86 Semi-trailer truck 87 Trolleybus 88 Speed pedelec 89 Delivery vehicle 90 Idling 91 Tow truck 92 Four-wheel drive 93 No vehicles 94 Bicycle 95 Motorcycle equipment 96 Railcar 97 Rail track 98 Public transport 99 Caravan 100 Trailer ...