Speed bumpFlanders

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11. Speed bump

A speed bump is a raised traffic-calming device placed across all or part of a road to make drivers reduce their speed. It is commonly used near homes, schools, crossings, parking areas and other places where low vehicle speeds are important.

Speed bumps vary in shape, height and legal status. Drivers should approach them at a low, controlled speed and follow any warning signs or speed limits that apply.

Speed hump in Waremme. (Belgium)
Wikimedia.org • Jeanhousen • CC BY-SA
How can you recognise a regulated raised device?

It may be announced by warning sign A14 and indicated at its location by sign F87. At an intersection, it may be announced using A14 alone. Raised devices inside a Zone 30 are also covered by the special rules.

Warning for a speed bump. Warning for a speed bump.

Signal routier A14 • Dispositif(s) surélevé(s).

Verkeersbord A14 • Verhoogde inrichting(en).

Speed bump. Speed bump.

Signal routier F87 • Dispositif(s) surélevé(s).

Verkeersbord F87 • Verhoogde inrichting(en).

What changes for speed bumps under Belgium’s new Road Code?

Belgium’s new Code of the Public Road takes effect on 1 June 2027. Unlike many other Belgian traffic signs, the signs relating to speed bumps keep their existing numbers: traffic sign A14 warns of a raised traffic-calming device, while traffic sign F87 indicates the raised device itself. The new Road Code defines a raised device as an installation placed across the public road to reduce traffic speed. Overtaking and stopping on the carriageway are prohibited on such raised devices.

Warning for a speed bump. Warning for a speed bump.

Signal routier A14 • Dispositif surélevé.

Verkeersbord A14 • Verhoogde inrichting.

Speed bump. Speed bump.

Signal routier F87 • Dispositif surélevé.

Verkeersbord F87 • Verhoogde inrichting.

What is a speed bump legally called in Belgium?

A Belgian speed bump is a type of raised traffic-calming device, legally described as a raised construction placed across the public road to reduce speed.

Which regulated raised devices exist in Belgium?

Belgian regulations distinguish between a speed bump, which has a rounded sinusoidal profile, and a speed table, which has one or more ramps leading to a flat raised section.

What does Belgian traffic sign A14 mean?

Traffic sign A14 warns drivers that one or more raised traffic-calming devices are ahead.

What does Belgian traffic sign F87 mean?

Traffic sign F87 indicates the location of one or more raised traffic-calming devices.

What is the maximum speed over a Belgian speed bump?

Drivers must approach the regulated raised device with extra caution and moderate speed and must cross it at no more than 30 km/h.

Must you always drive at exactly 30 km/h?

No. Thirty kilometres per hour is the maximum. Drivers must cross more slowly when required by the shape of the device, the vehicle, weather, visibility, pedestrians or other traffic conditions.

When does the Belgian 30 km/h rule apply?

It applies to regulated raised devices announced by A14 and F87, devices at intersections announced by A14, and raised devices situated within a Zone 30 marked by F4a and F4b.

Does the 30 km/h limit continue after the speed bump?

Not by itself. The special 30 km/h limit applies while crossing the raised device. After it, the previous road limit resumes unless a C43 sign, Zone 30 or another rule continues to impose 30 km/h.

Is every raised object legally a 30 km/h speed bump?

No. The special rules apply to raised devices covered by the Belgian legal definition, signposting and technical requirements. Drivers must nevertheless approach every visible obstruction at a safe and adapted speed.

What is the difference between a speed bump and a speed table?

A regulated Belgian speed bump is a local rounded elevation with a sinusoidal profile. A speed table has a longer flat raised section with sloping approaches and may extend across an intersection or crossing area.

How large is a regulated Belgian speed bump?

The standard regulated speed bump has a length of 4.80 metres and a maximum height of 12 centimetres, subject to the technical tolerances and provisions for older installations.

Is a Belgian speed cushion the same as a regulated speed bump?

No. A speed cushion does not extend across the full width of the traffic lane. It is not automatically a regulated 30 km/h raised device, although it may be used within a road or zone where another speed limit applies.

May you overtake on a Belgian raised device?

The left-side overtaking of a team, a two-wheeled motor vehicle or a vehicle with more than two wheels is prohibited on a raised device. All other passing manoeuvres remain subject to the ordinary safety and overtaking rules.

May you stop or park on a Belgian raised device?

No. Stopping and parking on a raised device are prohibited unless a local regulation expressly provides otherwise.

Does a Belgian speed bump give pedestrians priority?

No. The raised device alone does not create pedestrian priority. Pedestrians have priority when a pedestrian crossing, traffic signal or another applicable rule gives it to them.

Does a raised intersection change the priority rules?

No. Drivers must continue to follow the applicable priority signs, traffic signals and priority-from-the-right rules. The raised construction itself does not determine priority.

How should you cross a Belgian speed bump safely?

Reduce speed before the device, keep the vehicle under control and cross it smoothly. Avoid harsh braking, sudden acceleration or swerving onto another part of the road.

1 Flanders 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 ...