Radar speed signHungary

Learn traffic rules with clear explanations and visual examples in our illustrated book, designed to make studying simple and engaging.


30. Radar speed sign

A radar speed sign warns drivers that vehicle speeds may be monitored by a fixed camera, mobile radar, lidar or average-speed enforcement system. It reminds drivers to check and respect the applicable speed limit.

The sign does not normally establish the speed limit itself. Drivers must follow the general, posted or variable speed limit applying to the road and must not brake suddenly merely because speed enforcement is indicated.

Radar speed sign
Town-entry signs with a radar warning in Hosszúhetény. (Baranya County, Hungary)
Wikimedia.org • Rovas Alapitvany • CC BY-SA
What does a radar speed sign mean?

It warns that vehicle speeds may be measured or enforced on the road ahead or throughout a specified section.

Is a radar speed sign the same as a speed-limit sign?

No. A speed-limit sign establishes the maximum legal speed. A radar sign only warns that compliance with an applicable limit may be monitored.

Where can the applicable speed limit be found?

Check the most recent speed-limit sign, variable sign, speed-zone sign or general limit applying to the road and vehicle category.

Does the radar sign impose a lower speed?

No. It does not normally change the existing limit. Drivers must nevertheless travel more slowly when traffic, visibility, weather or road conditions require it.

Does the sign mean a camera is definitely present?

It may announce a permanent camera, a mobile-control area or a section where enforcement can occur. The exact meaning depends on the country and sign design.

Does the sign guarantee that the camera is active?

No. Drivers should never rely on assumptions about whether equipment is operating and should respect the speed limit at all times.

What is a fixed speed camera?

A fixed speed camera is permanently installed at a particular location and measures the speed of passing vehicles.

What is a mobile speed camera?

A mobile speed camera is temporarily positioned in a police vehicle, trailer, roadside unit or another approved location.

What is lidar speed enforcement?

Lidar uses laser pulses to measure the speed and position of vehicles. It may be used by police officers or in temporary automatic installations.

What is average-speed enforcement?

Average-speed enforcement records a vehicle at two or more points and calculates its average speed across the controlled section.

Can slowing only at the camera avoid an average-speed offence?

No. Average-speed enforcement considers the travel time across the complete measured section rather than speed at only one point.

Can a camera enforce both speed and red lights?

Yes. Some systems monitor vehicle speed and whether a vehicle passes a red traffic signal.

Is a radar warning sign legally required everywhere?

No. Some authorities announce speed cameras, while others permit enforcement without advance warning. The rules differ between countries and regions.

Can speed enforcement occur without a radar sign?

Yes. The absence of a warning sign does not normally prevent police or authorised authorities from carrying out a lawful speed check.

Does the sign give permission to drive at the displayed road limit?

The applicable limit remains a maximum rather than a target. Drivers must reduce speed whenever travelling at that limit would be unsafe.

Should you brake suddenly after seeing the sign?

No. Check your speed and reduce it smoothly when necessary. Sudden braking can cause a rear-end collision.

May you accelerate again after passing the camera?

Only while remaining within the applicable limit and driving safely. The restriction may continue, and another camera or average-speed section may follow.

Does the radar sign end the speed limit?

No. Passing a camera or radar sign does not end the applicable speed restriction.

What is a radar speed display?

A radar speed display measures an approaching vehicle and shows its current speed, sometimes with a colour, message or smiley symbol.

Is a radar speed display an enforcement camera?

Not necessarily. Many displays are preventive devices intended to make drivers aware of their speed and may collect anonymous traffic statistics without issuing penalties.

Is the displayed speed legally authoritative?

No. The roadside display is generally informational. Drivers remain responsible for observing the vehicle’s speedometer and the legal speed limit.

Can radar monitor motorcycles?

Yes. The technical ability to measure a motorcycle and the method used to identify it depend on the enforcement equipment.

Can a camera monitor several lanes?

Yes. Modern systems may measure vehicles in one or more lanes and may distinguish between traffic directions or vehicle categories.

Can different vehicles have different speed limits?

Yes. Heavy vehicles, buses, trailers or other vehicle categories may be subject to lower limits than passenger cars on the same road.

What should you do when you are already exceeding the limit?

Release the accelerator and reduce speed smoothly and safely. Do not brake harshly or make an abrupt lane change.

1 Hungary 2 Motorway 3 Residential area 4 Zone 5 Speed limit 6 Bike path 7 Pedestrian warning 8 Pedestrian zone 9 Slope 10 Bus stop 11 Stop sign 12 Give way 13 Roundabout 14 Priority road 15 Road narrowing 16 Priority over oncoming traffic 17 Give way to oncoming traffic 18 Pedestrian crossing 19 Railway crossing 20 Mandatory direction 21 School area 22 Overtaking 23 Crossing animals 24 Slippery road 25 Chevron 26 Wrong-way driving 27 Roadworks 28 Height limit 29 Weight limit 30 Radar speed sign 31 Selective barriers 32 Priority at the next junction 33 Traffic lights 34 Traffic lights warning 35 Road markings 36 Countdown markers 37 Traffic mirror 38 Cycling route 39 Parking 40 No parking 41 No stopping 42 Disabled parking 43 Reversing 44 U-turn 45 Uncontrolled crossroad 46 Road surface 47 City limit 48 Licence plate 49 Charging station 50 Dangers 51 Cyclist 52 Moped 53 Car 54 Bus 55 Police 56 Ambulance 57 Taxi 58 European emission standard 59 Pothole 60 Path 61 Particulates 62 Air pollution 63 Rush hour 64 Road code 65 Two-way traffic 66 Street gutter 67 Cargo bike 68 Forestry vehicle 69 Construction vehicle 70 Semi-trailer truck 71 Trolleybus 72 Speed pedelec 73 Delivery vehicle 74 Idling 75 Tow truck 76 Four-wheel drive 77 No vehicles 78 Bicycle 79 Motorcycle equipment 80 Rail track 81 Caravan 82 Trailer 83 Tow hitch 84 Fire truck 85 Siren 86 Convoy 87 Emergency vehicle lighting 88 Agricultural machinery 89 Electric bicycle 90 Electric vehicle 91 Pedelec 92 Quadricycle 93 Microcar 94 All-terrain vehicle 95 Van 96 Recreational vehicle 97 Scooter 98 Trikke 99 Personal mobility device 100 Skateboard ...