Traffic signsFrance
126. Horn
A horn is a sound-producing device used to warn other road users of danger or to attract their attention when necessary for safety. Most motor vehicles are equipped with an electric horn operated from the steering wheel. Traffic laws generally restrict unnecessary or excessive horn use, especially in built-up or residential areas. The horn should therefore be used as a warning device rather than as a way to express frustration or greet other road users.
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What is a car horn?
A car horn is a sound-producing warning device used to alert other road users when their attention is needed for safety.
When should you use the horn?
The horn should generally be used when a sound warning is necessary to help prevent danger or an accident. The exact circumstances in which horn use is permitted depend on local traffic laws.
Can you use the horn to show annoyance?
Generally, no. A horn is intended as a safety warning device, and unnecessary or excessive use may be prohibited by local traffic rules.
Can you use the horn at night?
Rules for using the horn at night vary between countries. Some traffic laws restrict sound signals at night and require drivers to use their lights instead, except when there is immediate danger.
Can a vehicle horn be modified?
Vehicle horns may have to meet technical requirements for their sound and operation. Horns that imitate emergency-service sirens or otherwise fail applicable vehicle standards may be prohibited.
Is the horn checked during a vehicle inspection?
In countries with periodic technical inspections, the operation and condition of the horn may be checked as part of the vehicle's safety equipment.
127. Axle weight limit
An axle weight limit is the maximum permitted weight or load carried by a single axle of a vehicle. It limits how much force an axle and its wheels may transmit to the road, independently of the vehicle's total weight.
Axle weight limits help protect bridges and road surfaces from excessive loads and contribute to safe vehicle operation. A vehicle can comply with an overall weight limit while still exceeding an axle limit if its load is distributed incorrectly.
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What does an axle weight limit mean?
An axle weight limit specifies the maximum permitted load carried by an individual axle or axle group. A vehicle exceeding the indicated axle load may not use the restricted road or structure.
Is axle weight the same as total vehicle weight?
No. Total vehicle weight is the combined weight of the entire vehicle and its load, while axle weight is the portion of that weight supported by a particular axle. Both limits may apply at the same time.
Why are axle weight limits used?
They help prevent excessive stress on roads and structures such as bridges. They also ensure that vehicle loads are distributed safely between the axles.
128. Licence plate
A licence plate, also called a registration plate or number plate, is a plate displaying a unique registration identifier assigned to a vehicle by the competent registration authority. It allows the vehicle to be identified for purposes such as registration, traffic enforcement, taxation, insurance and parking control.
The appearance, format, placement and number of plates required vary between countries and vehicle categories. Drivers must ensure that required licence plates are correctly fitted, clearly visible and legible and must follow the local rules when a plate is lost, stolen, damaged or replaced.
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What is a licence plate?
A licence plate is a plate displaying the registration identifier assigned to a vehicle. It allows authorities and other authorised systems to identify the vehicle's registration.
Is a licence plate the same as a registration plate?
Yes. Licence plate, registration plate and number plate are different terms commonly used for the plate displaying a vehicle's official registration number.
Does every vehicle need a licence plate?
Most motor vehicles used on public roads must display one or more registration plates, but requirements differ for motorcycles, trailers, agricultural vehicles and other special vehicle categories.
Do vehicles need both front and rear licence plates?
This depends on the country and vehicle type. Cars commonly require front and rear plates, while motorcycles and certain other vehicles may require only a rear plate.
Must a licence plate remain visible?
Yes. A required registration plate must normally remain clearly visible and readable. It should not be hidden by luggage, dirt, accessories or other objects.
Can you modify a licence plate?
Generally no. Changing the characters, colours, dimensions or appearance of an official plate may make it invalid or illegal. Plates and authorised reproductions must comply with local specifications.
What should you do if a licence plate is lost or stolen?
Follow the local reporting and replacement procedure. Many countries require the loss or theft to be reported to the police or vehicle-registration authority before a replacement plate can be issued.
Can you drive with a damaged licence plate?
A plate must remain legible and compliant with local requirements. If damage prevents it from being read or makes it invalid, it should be replaced according to the local registration procedure.
Can a licence plate be personalised?
Some countries allow motorists to request a personalised registration combination. The available characters, formats and prohibited combinations are determined by the registration authority.
Does a licence plate stay with the vehicle when it is sold?
This varies between countries. In some systems the plate remains with the vehicle, while in others it remains associated with the registered holder and may be retained or returned when the vehicle is sold.
129. Charging station
A charging station is a location equipped with one or more charging points where the battery of an electric or plug-in hybrid vehicle can be connected to an electricity supply and recharged. Charging stations may be located along public roads, in car parks, at service areas or on private property.
Charging spaces may be reserved for vehicles that are charging and can be subject to parking restrictions, time limits, payment requirements or other conditions. Drivers must follow the traffic signs, parking regulations and charging instructions applying at the location.
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What is a charging station?
A charging station is a location where electric vehicles can be connected to an electricity supply to recharge their batteries. A station may contain one or several individual charging points.
Who can use an electric-vehicle charging station?
Charging stations are intended for vehicles that can be externally charged, such as battery-electric vehicles and plug-in hybrid vehicles. The exact vehicle categories permitted may be indicated by local signs or operator conditions.
Is a charging space an ordinary parking space?
Not necessarily. A space beside a charger may be reserved for electric vehicles or vehicles that are charging. Drivers must check the signs and markings before parking there.
Can a petrol or diesel vehicle park at a charging station?
Not where the parking space is officially reserved for electric vehicles. An ordinary parking space located near a charger may be different, so the applicable signs and markings determine who may park there.
Can an electric vehicle park at a charging point without charging?
This depends on the local traffic and parking rules. Many charging spaces require the vehicle to be connected to the charger, even if the vehicle itself is electric.
Do you have to pay to use a charging station?
Charging may be free or subject to payment. The price and payment method are determined by the charging operator, while separate parking charges may also apply.
Can a charging station have a maximum parking time?
Yes. Traffic signs, parking regulations or charging conditions may establish a maximum duration to encourage drivers to move their vehicles and make the charger available to others.
Must you move the vehicle when charging is finished?
Follow the local parking rules and charging conditions. Some locations require vehicles to leave after charging or impose additional fees or time limits when the charging session has ended.
Does using a charger override ordinary parking restrictions?
No. A charging station does not allow a driver to ignore no-parking rules, reserved spaces, time limits or other traffic regulations. The vehicle must still be legally parked.
Are all charging stations equally fast?
No. Charging stations can provide different charging powers. Some are intended for longer parking periods, while high-power chargers can recharge compatible vehicles much more quickly.
130. Dangers
A general danger warning sign warns road users of a hazard ahead that is not represented by a more specific warning sign. The particular danger may be explained by a supplementary panel, text, symbol or other indication placed with the warning sign.
Drivers should increase their attention, observe the road ahead and adapt their speed to the nature of the hazard and surrounding conditions. The exact appearance of the sign and the way the danger is identified vary between countries, so road users must follow the local traffic signs and regulations.
Wikimedia.org • Marc Mongenet • CC BY-SA
What does a general danger warning sign mean?
A general danger warning sign indicates that there is a hazard ahead that is not represented by a more specific warning sign in the local traffic-sign system.
What kind of danger can the sign indicate?
It can be used for unusual or uncommon hazards for which no dedicated warning symbol exists. The nature of the danger may be explained by an additional panel, symbol or message.
How can you know what the danger is?
Look for a supplementary panel, text or symbol accompanying the warning sign. It may describe the hazard or provide information needed to understand the warning.
What should you do when you see a general danger warning sign?
Increase your attention, observe the road and surroundings carefully and adapt your speed where necessary so that you can respond safely to the hazard.
Does the sign impose a specific speed limit?
Not normally. A warning sign alerts road users to danger rather than establishing a numerical speed limit. A separate speed-limit sign may be provided where a specific maximum speed is required.
Why is a general warning sign used instead of a specific warning sign?
It is used when the traffic-sign system does not contain a specific symbol that accurately represents the particular hazard.
Can the danger be temporary?
Yes. A general warning sign may be used for either a temporary or continuing hazard, depending on local signing rules and the circumstances.
Can a supplementary panel indicate the distance to the danger?
Yes. Depending on the country's traffic-sign system, an additional panel may indicate the distance to the hazard, the length of the dangerous section or other useful information.
Does a general danger sign give anyone priority?
No. A danger warning sign does not by itself change the priority rules. Drivers must continue to follow traffic lights, priority signs and the normal right-of-way rules.
Does the warning end immediately after the sign?
Not necessarily. The sign normally warns of a hazard ahead of the sign, and the dangerous situation may extend over a section of road. Supplementary information may indicate its location or length.
131. Weather
Weather can have a major effect on driving conditions by reducing visibility, grip and vehicle control. Rain, fog, snow, ice, strong wind and bright sunlight can all increase the risk of an accident. Drivers should adapt their speed and following distance to the conditions, avoid sudden steering or braking on slippery roads and use the appropriate lights when visibility is reduced. Even when driving below the posted speed limit, a driver may still be travelling too fast for the weather and road conditions.
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How does weather affect driving?
Weather can reduce visibility, tyre grip and vehicle control. Rain, snow, ice, fog, strong wind and bright sunlight may require drivers to reduce speed and increase their following distance.
Should you drive slower in bad weather?
Yes. Drivers should adapt their speed to the weather, visibility and road conditions. The posted speed limit is a maximum and may still be too fast in poor conditions.
Why should you increase the following distance in bad weather?
Wet, snowy or icy roads can increase stopping distances. A larger following distance gives the driver more time and space to react and stop safely.
What should you do when driving in heavy rain?
Reduce speed, increase your following distance, use the appropriate lights and avoid sudden steering or braking. Heavy rain can reduce visibility and increase the risk of aquaplaning.
What should you do when driving in fog?
Reduce speed, increase your following distance and use the appropriate lights. Avoid relying on the vehicle ahead as a guide and make sure you can stop within the distance you can clearly see.
What should you do when driving on snow or ice?
Drive slowly and smoothly, increase the following distance and avoid sudden acceleration, steering or braking. Tyre grip can be greatly reduced on snow and ice.
132. Tunnel category
A tunnel category is a classification used to determine which vehicles carrying dangerous goods may pass through a road tunnel. Under the ADR system, road tunnels can be classified from category A to category E according to the restrictions imposed on dangerous-goods transport.
Category A has no ADR tunnel restrictions, while categories B, C, D and E impose progressively broader restrictions according to the potential consequences of the dangerous goods being transported. Drivers carrying dangerous goods must compare the tunnel category with the tunnel restriction code applicable to their load.
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What is an ADR tunnel category?
An ADR tunnel category determines which dangerous-goods transports are permitted or prohibited from passing through a particular road tunnel.
What do tunnel categories A to E mean?
Category A has no ADR tunnel restrictions. Categories B, C, D and E impose increasingly extensive restrictions on dangerous goods that could cause consequences such as explosions, toxic releases or major fires.
Do tunnel categories apply to ordinary passenger cars?
Normally, no. ADR tunnel categories specifically regulate vehicles carrying dangerous goods covered by the ADR rules. Other vehicles must still obey the normal traffic and tunnel regulations.
133. Temporary sign
A temporary sign is a traffic sign installed for a limited period to regulate, warn or guide road users because of temporary conditions. Temporary signs are commonly used for roadworks, accidents, events, diversions, lane closures or other situations where the normal traffic arrangement has changed.
Drivers must follow temporary signs and the traffic arrangement currently in force. Signs that are no longer relevant should normally be removed, covered or otherwise made ineffective so that road users are not given conflicting instructions.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a temporary traffic sign?
A temporary traffic sign is a sign installed for a limited period to regulate, warn or direct traffic because of temporary road conditions.
Where are temporary signs commonly used?
They are commonly used at roadworks, accidents, temporary closures, diversions and special events.
What happens when a temporary sign is no longer needed?
It should normally be removed, covered or otherwise made ineffective so that it does not confuse road users or conflict with the normal traffic arrangement.
134. Turn on red
Turn on red is a traffic rule or signal arrangement that allows certain road users to proceed in a specified direction despite a red traffic light. It most commonly permits a turn after the driver has stopped or yielded, but the exact procedure varies between countries.
A turn on red is not universally permitted. It may be allowed generally, only when a specific sign or signal is present, or prohibited entirely. Drivers must always follow the local traffic lights, signs, priority rules and pedestrian or cyclist crossings before proceeding.
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What does turn on red mean?
Turn on red means that a road user may proceed in a specified turning direction despite a red traffic light when local law or a specific sign or signal permits it.
Is turning on red allowed everywhere?
No. Some countries permit certain turns on red, while others prohibit them unless a special sign or signal provides an exception.
Do you have to stop before turning on red?
This depends on the local traffic rules. In some jurisdictions a complete stop is required before turning, while other systems use a give-way rule or a separate signal that permits the movement.
Do you have priority when turning on red?
Usually no. A road user permitted to proceed against a red light generally has to give way to traffic, pedestrians and cyclists who are lawfully moving through the intersection.
Can pedestrians have priority over a vehicle turning on red?
Yes. Drivers must check pedestrian crossings carefully and give way where required before making the permitted turn.
Can cyclists be allowed to pass a red light when motorists cannot?
Yes. Some countries use special signs or bicycle signals that allow cyclists to turn or continue in a specified direction while the main traffic light remains red.
Does a green arrow beside a red light allow you to proceed?
Where the local signal system provides this arrangement, a green arrow may permit movement only in the direction indicated even though the main signal remains red. Applicable give-way rules must still be followed.
Can a sign prohibit turning on red?
Yes. In countries where turning on red is normally permitted, a specific sign may prohibit the manoeuvre at particular intersections.
Can you turn left on red?
This depends entirely on the country and road layout. Some jurisdictions permit particular left turns on red, while many do not. Never assume that a rule allowing a right turn also permits a left turn.
What should you do if you are unsure whether turning on red is allowed?
Remain stopped until a signal clearly permits you to proceed. Never pass a red light based only on what is permitted in another country.
135. High voltage
High voltage refers to electrical systems that operate at voltage levels high enough to present a serious risk of electric shock, burns or electrocution. High-voltage equipment may be found at substations, power lines, railway or tram infrastructure and other electrical installations.
Areas containing high-voltage equipment are commonly identified by electrical hazard warning signs. People should keep away from exposed electrical equipment, respect barriers and safety distances and never enter restricted electrical areas without authorisation.
Wikimedia.org • Marc Mongenet • CC BY-SA
What does high voltage mean?
High voltage refers to electrical installations operating at voltage levels that can create a serious risk of electric shock, burns or electrocution.
Where can high-voltage equipment be found?
It may be found at power lines, substations, railway and tram infrastructure, industrial facilities and other electrical installations.
What should you do when you see a high-voltage warning?
Keep away from the electrical equipment, respect barriers and safety distances and do not enter restricted areas or touch electrical installations.
136. Fire risk
A fire risk sign warns road users that there is an increased danger of fire in or near the area. It may be used where dry vegetation, flammable materials or other conditions make fires particularly likely or where additional caution is required.
The appearance and legal status of fire-risk signs vary between countries. Drivers should avoid actions that could start a fire, obey any accompanying restrictions and remain alert for smoke, flames or emergency activity.
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What does a fire risk sign mean?
It warns that conditions in or near the area create an increased risk of fire. Drivers should take extra care and avoid anything that could ignite vegetation, fuel or other flammable material.
Does a fire risk sign always prohibit access?
No. A warning sign by itself normally warns of a hazard rather than automatically closing the road. Access may nevertheless be restricted by additional signs, barriers or instructions when the fire danger is particularly high.
What should you do when you see a fire risk sign?
Remain alert, obey any accompanying restrictions and avoid actions that could cause a fire. If there is an active fire or smoke affecting the road, reduce your exposure to the danger and follow instructions from emergency services or road authorities.
137. Pedestrian
A pedestrian is a person travelling on foot along or across a road, street, path or other public space. Depending on local traffic law, people pushing bicycles, wheelchairs, prams or certain other small devices may also be treated as pedestrians.
Pedestrians normally use pavements, sidewalks, footpaths and pedestrian areas where these are available. When crossing a road or walking where no suitable pedestrian facility exists, they must follow the applicable crossing rules, traffic lights and other local traffic regulations.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a pedestrian?
A pedestrian is primarily a person travelling on foot. Local traffic laws may also treat people pushing bicycles, wheelchairs, prams or certain other devices as pedestrians.
Where should pedestrians normally walk?
Pedestrians should normally use pavements, sidewalks, footpaths or other areas provided for pedestrians. Where these are unavailable, local rules determine where pedestrians may walk on or beside the road.
Which side of the road should pedestrians walk on when there is no pavement?
This depends on the country's traffic rules. Many countries require or recommend pedestrians to face approaching traffic, but the exact rule varies.
Where should pedestrians cross a road?
Use a pedestrian crossing, traffic-light-controlled crossing or other designated crossing where required or reasonably available. Where crossing elsewhere is permitted, choose a location with good visibility and cross carefully.
Do pedestrians always have priority at a pedestrian crossing?
The exact priority rule varies between countries. Drivers are commonly required to give way to pedestrians using or entering designated crossings, but pedestrians must still obey traffic lights and avoid entering the road dangerously.
Must pedestrians obey traffic lights?
Yes. Where pedestrian signals are provided, pedestrians must follow their indications and should not enter the roadway while the signal prohibits crossing.
Is someone pushing a bicycle a pedestrian?
In many traffic systems, a person who dismounts and walks beside a bicycle is treated as a pedestrian. The precise legal classification depends on local law.
Can pedestrians use a cycle path?
This depends on the road layout and local rules. Pedestrians may sometimes use a cycle path when no suitable pedestrian facility is available, but they must not unnecessarily obstruct cyclists or other authorised users.
Do turning vehicles have to watch for pedestrians?
Yes. Drivers turning into another road must watch carefully for pedestrians crossing the road they are entering and give way where required by local traffic law.
What should pedestrians do before crossing a road?
Check carefully for approaching traffic from all relevant directions, make sure there is sufficient time and distance to cross safely, and continue to observe traffic while crossing.
138. Cyclist
A cyclist is a person who rides and controls a bicycle. Cyclists are road users and, in many countries, bicycles are legally treated as vehicles, meaning cyclists must follow many of the same traffic rules that apply to other drivers together with rules specifically intended for cycling.
Cyclists should use designated cycling facilities where required, obey traffic signs and signals and ride in a predictable and safe manner. The exact rules governing road position, priority, equipment and permitted cycling areas vary between countries.
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What is a cyclist?
A cyclist is a person who rides and controls a bicycle.
Is a cyclist considered a road user?
Yes. Cyclists are road users and must follow the traffic rules, signs and signals that apply to them.
Where should cyclists ride?
This depends on local rules. Cyclists may be required to use a cycle path or designated cycling facility, while in other situations they may ride on the carriageway.
139. Moped
A moped is a lightweight motor vehicle, usually with two or three wheels, whose power, engine capacity or maximum design speed is limited by law. Mopeds generally occupy a legal category between bicycles and motorcycles, although their exact classification varies between countries.
Special rules may apply concerning the minimum riding age, driving licence, helmet, registration, insurance, maximum speed and use of cycle paths or roadways. Riders must therefore follow the classification and traffic regulations applying in the country where they are travelling.
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What is a moped?
A moped is a lightweight motor vehicle whose engine power, capacity or maximum design speed is restricted by law. The precise technical definition differs between countries.
Is a moped the same as a motorcycle?
No. Mopeds normally have lower maximum speeds and power than motorcycles and are classified separately under traffic and licensing laws.
Is an electric moped still a moped?
Yes, potentially. A vehicle can be legally classified as a moped whether its motor is electric or uses an internal-combustion engine. Classification depends on factors such as design speed and power.
Do you need a driving licence for a moped?
This depends on the country and moped category. Some low-speed mopeds may be ridden without a licence, while faster mopeds commonly require a dedicated moped licence or another qualifying driving licence.
Do moped riders have to wear a helmet?
Helmet requirements vary between countries, but an approved protective helmet is compulsory for moped riders in many jurisdictions. Passengers may also be required to wear one.
Can a moped use a cycle path?
This depends on the moped category, road speed limit and local signs. Some low-speed mopeds may be required to use cycle paths, while faster mopeds may be required or permitted to use the roadway.
Can a moped carry a passenger?
Only where the vehicle is designed and legally approved to carry a passenger and the rider satisfies any minimum-age or licensing requirements.
Does a moped need a licence plate?
Many countries require mopeds to be registered and display a registration plate. Requirements vary according to vehicle category and national law.
Does a moped need insurance?
Compulsory third-party liability insurance is required for mopeds in many countries. The exact insurance requirements depend on the vehicle classification and national legislation.
Can a moped use a motorway?
Mopeds are generally prohibited from motorways and other high-speed controlled-access roads because their maximum design speed is too low and the road may specifically exclude them.
140. Motorcycle
A motorcycle is a motor-powered vehicle with two wheels, with or without a sidecar. Motorcycles include many different types and sizes of vehicles designed for road travel, recreation, touring or other purposes.
Motorcyclists should maintain full control of the motorcycle, obey the applicable traffic rules and use appropriate protective equipment. Licensing, helmet, equipment and road-use requirements vary between countries.
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What is a motorcycle?
A motorcycle is a powered two-wheeled vehicle, which may also be equipped with a sidecar.
Is a motorcycle the same as a moped?
No. Traffic laws generally distinguish motorcycles from mopeds according to technical characteristics such as power, engine capacity or maximum speed.
What protective equipment should a motorcyclist use?
Motorcyclists should use an approved helmet and suitable protective clothing. The exact mandatory equipment depends on the country's traffic laws.
141. Car
A car is a motor vehicle primarily designed to transport a small number of people and their luggage on roads. Cars may be powered by petrol, diesel, electricity, hydrogen or a combination of different energy sources.
Drivers must comply with the applicable requirements concerning the driving licence, vehicle registration, insurance, technical condition, seat belts and passenger safety. Speed limits, equipment requirements, road access and other traffic rules vary between countries, so drivers must follow the local traffic signs and regulations.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a car?
A car is a motor vehicle primarily designed to carry a relatively small number of passengers and their luggage on roads.
Is a car the same as a motor vehicle?
No. A car is a type of motor vehicle. The broader category of motor vehicles can also include motorcycles, buses, trucks, mopeds and other powered vehicles, depending on local legal definitions.
Do you need a driving licence to drive a car?
Yes. A driver must normally hold a valid driving licence for the vehicle category concerned. The licence categories and minimum ages vary between countries.
Does a car need to be registered?
Yes, normally. Cars used on public roads generally have to be registered with the competent authority and display the required registration plate or plates.
Does a car need insurance?
Most countries require at least third-party liability insurance before a car may be used on public roads. Additional insurance may be optional.
Must people in a car wear seat belts?
Where seat belts are fitted, drivers and passengers are generally required to wear them correctly. Exact requirements and exemptions vary between countries.
Do children need a special restraint in a car?
Yes, in many countries. Children below specified age, height or weight thresholds must be transported in an appropriate approved child-restraint system.
How many passengers can a car carry?
A car must not carry more people than it is designed and legally approved to transport. Passengers should use the designated seating positions and required restraint systems.
Can a car tow a trailer?
Yes, if the vehicle and licence permit it. Maximum trailer masses, combination masses and licence requirements depend on the vehicle and local regulations.
Can every car use a motorway?
Most ordinary cars can use motorways, but they must satisfy the applicable vehicle, speed and access requirements. Certain unusually slow or restricted vehicles may be prohibited.
142. Truck
A truck is a motor vehicle designed primarily for transporting goods. Trucks range from relatively small delivery vehicles to large heavy goods vehicles and articulated combinations used for long-distance freight transport.
Because trucks are generally larger, heavier and slower to manoeuvre than passenger cars, they require more space for turning and braking and often have larger blind spots. Specific speed, lane-use, overtaking and access rules may apply depending on the vehicle's weight and the country.
Wikimedia.org • Tabl-trai • CC BY-SA
What is a truck?
A truck is a motor vehicle designed primarily for transporting goods.
Are all trucks considered heavy goods vehicles?
No. Trucks can include lighter goods vehicles as well as heavy trucks. Traffic laws often apply different rules according to the vehicle's maximum authorised mass.
Why should other road users take extra care around trucks?
Trucks may have larger blind spots, longer stopping distances and wider turning paths than smaller vehicles, so other road users should avoid remaining unnecessarily close beside or in front of them.
143. Bus
A bus is a motor vehicle designed to transport multiple passengers, usually along roads as part of public transport, school transport, private transport or another passenger service. Buses generally have more passenger capacity than cars and may be designed to carry seated passengers, standing passengers or both.
Special rules may apply to buses concerning the driving licence, passenger capacity, speed limits, seat belts, bus lanes, stops and passenger boarding. The legal classification of buses and coaches and the rules applying to them vary between countries, so drivers and passengers must follow the local traffic regulations.
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What is a bus?
A bus is a motor vehicle designed to transport a relatively large number of passengers. It may be used for public transport, school transport, private services or other passenger transport.
What is the difference between a bus and a coach?
A bus is commonly designed for frequent passenger boarding and may allow standing passengers, while a coach is generally designed for longer journeys with passengers seated. Exact legal definitions vary between countries.
Do you need a special driving licence to drive a bus?
Yes. Driving a vehicle designed to carry more than a specified number of passengers normally requires a dedicated bus or passenger-vehicle driving licence.
Can passengers stand on a bus?
Only when the vehicle is designed and approved to carry standing passengers. Coaches and other vehicles designed exclusively for seated passengers must not be used beyond their approved passenger configuration.
Must bus passengers wear seat belts?
Where seat belts are provided and local law requires their use, passengers must wear them correctly. Urban buses designed for standing passengers may have seating positions or operating conditions that differ from coaches.
Can buses use bus lanes?
Yes, where permitted. Bus lanes are commonly reserved for public transport buses, although local signs may also allow taxis, bicycles or other specified vehicles to use them.
Do buses always have priority when leaving a bus stop?
No. Some countries require other drivers to give way to buses leaving designated stops, particularly in urban areas, while others apply the normal merging rules.
Should you take extra care near a stopped bus?
Yes. Passengers may be boarding, leaving or crossing the road near the bus. Reduce speed where necessary and watch carefully for pedestrians emerging from behind or in front of the vehicle.
Do buses have special speed limits?
They can. Some countries impose lower maximum speeds on buses than on passenger cars, particularly on high-speed roads. Different limits may apply to buses and coaches.
Can a bus use a motorway?
Yes, normally. Buses that satisfy the applicable construction and access requirements may use motorways, but they must obey any vehicle-specific speed limits, lane restrictions and other local rules.
144. Police
Police are public authorities responsible for enforcing laws, maintaining public safety and managing situations that may affect road traffic. In traffic, police officers may control vehicles, enforce traffic rules, investigate collisions, direct traffic and respond to emergencies.
Road users must follow lawful instructions given by police officers or other authorised traffic-control personnel. Police directions may temporarily override traffic lights, road signs or normal traffic arrangements, depending on local law.
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What is the role of police in road traffic?
Police help enforce traffic laws, manage traffic, investigate collisions and respond to dangerous situations. They may also carry out roadside checks and direct road users.
Must you obey a police officer directing traffic?
Yes. Lawful directions given by an authorised police officer must be followed. In many countries, those directions take precedence over traffic lights, road signs and normal priority rules.
What should you do if police signal you to stop?
Slow down, follow the officer's directions and stop at a safe location as instructed. Do not make sudden movements or continue driving unless directed to do so.
Can police direct you through a red traffic light?
Yes, where authorised by local law. A police officer controlling traffic may instruct road users to proceed even when a traffic light or sign would normally require them to stop.
Can police check your driving documents?
Yes. Police may require drivers to provide documents such as a driving licence, vehicle registration, identification or proof of insurance according to local law.
Can police carry out alcohol or drug checks?
Yes. Traffic police may conduct legally authorised alcohol and drug checks using procedures such as breath, saliva or other approved tests.
Can police temporarily close a road?
Yes. Roads or lanes may be temporarily closed or traffic diverted because of collisions, emergencies, investigations, public events or other safety concerns.
What should you do near police controlling an accident scene?
Reduce speed, remain alert and follow all directions. Do not enter a closed area or interfere with emergency personnel, and leave sufficient space for emergency vehicles.
What should you do when a police vehicle approaches with emergency signals?
Follow the local rules for priority vehicles. Drivers generally have to make sufficient space, give way and stop where necessary so that the emergency vehicle can pass safely.
Can police order a parked vehicle to be moved?
Yes, where local law permits it. Police or another authorised authority may require a vehicle to be moved when it obstructs traffic, creates danger or must be removed for operational reasons.
145. Ambulance
An ambulance is a vehicle equipped and used to provide emergency medical assistance or transport patients to or between healthcare facilities. Ambulances may carry medical equipment and trained personnel who can provide treatment during transport.
During an emergency response, an ambulance may use warning lights and a siren and may receive special priority or exemptions from certain traffic rules. Other road users must follow the local rules for emergency vehicles, make sufficient space and avoid obstructing their passage.
Wikimedia.org • Alf van Beem • CC0
What is an ambulance?
An ambulance is a specially equipped vehicle used to provide emergency medical assistance and transport sick or injured people.
When does an ambulance have priority?
This depends on the local traffic rules and warning signals being used. Ambulances responding to emergencies commonly use flashing lights and a siren to indicate that other road users must make way.
What should you do when an ambulance approaches?
Remain calm and make sufficient space for it to pass. Slow down or stop where necessary, but avoid sudden or dangerous manoeuvres.
Should you stop immediately when you hear an ambulance siren?
Not necessarily in your exact position. Move or stop in a way that creates a safe passage without blocking an intersection, pedestrian crossing or another part of the road needed by the ambulance.
Can an ambulance pass a red traffic light?
Emergency vehicles may be allowed to pass a red light during an urgent response under special legal conditions. The precise rules differ between countries, and the ambulance driver must still take appropriate precautions.
Can an ambulance exceed the speed limit?
Many countries permit emergency vehicles to depart from certain normal speed rules during an urgent mission, subject to safety requirements and national legislation.
Can an ambulance drive through a traffic queue?
Yes, when responding to an emergency and legally permitted to do so. Other road users should create space and keep emergency corridors or access routes clear where required.
Can you follow an ambulance through traffic?
You should not use the passage created for an ambulance as a way to bypass congestion. Maintain a safe distance and continue to obey the normal traffic rules.
Do ambulances always use their sirens?
No. The use of warning lights and sirens depends on the urgency of the mission and local regulations. An ambulance transporting a patient does not necessarily need to use emergency signals throughout the journey.
What should you do near a stationary ambulance?
Reduce speed and remain alert. Medical personnel, patients or other emergency workers may be entering the road, and the ambulance may need to move unexpectedly.
146. Taxi
A taxi is a vehicle used to transport passengers for payment, usually providing individual or small-group journeys between locations chosen by the passenger. Taxi services may operate from designated taxi stands, accept street hails or be booked by telephone or digital platform.
Taxis are commonly identified by special markings, roof signs, licence plates or local taxi permits. The licensing, fare and operating rules vary between countries and cities.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is a taxi?
A taxi is a vehicle used to transport passengers for payment, normally providing journeys requested by individual customers.
Where can passengers find a taxi?
Depending on the local system, taxis may be available at taxi stands, airports, railway stations, on the street or through telephone and app-based booking services.
Are taxis regulated?
Yes. Taxi services are generally subject to licensing and operating requirements, although the exact rules concerning vehicles, drivers, fares and permitted operating areas vary between jurisdictions.
147. Tailgating
Tailgating means driving too closely behind another vehicle without leaving enough distance to react and stop safely if the vehicle ahead slows down or stops suddenly. The safe following distance depends on factors such as speed, road conditions, weather and visibility.
Drivers should leave sufficient space between their vehicle and the vehicle ahead and increase that distance in rain, snow, fog or other conditions that increase stopping distance.
Wikimedia.org • Marc Mongenet • CC BY-SA
What is tailgating?
Tailgating means following another vehicle too closely to maintain a safe stopping distance.
Why is tailgating dangerous?
Following too closely gives the driver less time and distance to react if the vehicle ahead brakes, slows down or encounters an unexpected hazard.
When should you increase your following distance?
You should increase the distance in conditions such as rain, snow, ice, fog, darkness or poor road surfaces and whenever visibility or tyre grip is reduced.
148. Tram lights
Tram lights are special traffic signals used to control the movement of trams and, in some countries, other public-transport vehicles. They are often designed differently from ordinary red, amber and green traffic lights so that public-transport drivers can clearly distinguish the signals intended for them.
The signals may indicate stop, prepare to stop, proceed or proceed only in a specified direction. Their shapes, colours and meanings vary between countries, so road users must follow the local traffic-signal system and regulations.
Wikimedia.org • Smiley.toerist • CC BY-SA
What are tram lights?
Tram lights are special traffic signals used to control trams and sometimes other authorised public-transport vehicles.
Why are tram lights different from normal traffic lights?
Using different symbols, shapes or colours makes it easier for tram and public-transport drivers to distinguish their signals from the red, amber and green lights controlling ordinary road traffic.
Do tram lights have the same meaning in every country?
No. The appearance and meaning of public-transport signals vary between countries and sometimes between transport systems.
Can tram lights indicate different directions?
Yes. Special signals may permit a tram to continue straight ahead, turn left or turn right while other movements remain prohibited.
Do ordinary motorists have to follow tram lights?
Normally no when the signals are specifically intended for trams or public-transport vehicles. Ordinary drivers must follow the traffic lights and signs that apply to them.
Can tram lights operate differently from ordinary traffic lights?
Yes. Public-transport signals may allow a tram to proceed while ordinary traffic remains stopped, helping the tram cross an intersection or receive priority through traffic.
Can cyclists ever have to follow tram lights?
In some road layouts, cyclists or other authorised users may share infrastructure controlled by public-transport signals. Whether those signals apply to them depends on local traffic law and signage.
Does a signal allowing a tram to proceed mean other traffic may also proceed?
No. A signal intended specifically for a tram or public-transport vehicle does not give permission to other road users unless their own signal or traffic rule also permits them to proceed.
What should drivers do near tram signals?
Follow the signals intended for your own traffic stream, remain alert for approaching trams and avoid stopping where you could obstruct the tracks.
Do tram lights replace normal priority rules for everyone?
No. They primarily regulate the vehicles to which they apply. Other road users must continue to obey their own traffic lights, signs and applicable priority rules.
149. European emission standard
A European emission standard, commonly called a Euro standard, is a European vehicle classification based on limits for pollutants emitted by vehicles and their engines. Successive standards, such as Euro 4, Euro 5 and Euro 6, introduced progressively stricter requirements for pollutants such as nitrogen oxides, particulate matter, carbon monoxide and hydrocarbons.
A vehicle's Euro standard is determined as part of its type approval and depends on factors including the vehicle category, fuel type and applicable emissions legislation when it was approved. Euro standards may also be used by authorities to determine access to low-emission zones, but local access rules vary between countries and cities.
Wikimedia.org • Rfeba • CC0
What is a European emission standard?
A European emission standard, or Euro standard, classifies vehicles according to the emissions requirements they had to satisfy when approved for use in the European market.
What do Euro 4, Euro 5 and Euro 6 mean?
They are successive generations of European emission requirements. In general, a higher Euro number represents a newer and stricter emissions standard, although the exact limits differ according to vehicle and fuel type.
Which pollutants do Euro standards regulate?
Depending on the vehicle and standard, limits apply to pollutants such as nitrogen oxides, particulate matter, carbon monoxide and hydrocarbons. Newer standards also regulate additional environmental aspects.
Is the Euro standard the same as a vehicle's CO2 emissions?
No. Euro standards primarily regulate harmful air pollutants from vehicles. Carbon-dioxide emissions and fuel or energy consumption are subject to separate measurements and regulatory requirements.
How can you find a vehicle's Euro standard?
The Euro standard may appear on the vehicle registration certificate, certificate of conformity or other official vehicle documentation. Its location and format vary between countries.
Does the year of a vehicle determine its Euro standard?
The date of first registration can provide an indication, but it does not always determine the standard with certainty. The official vehicle documents or type-approval information provide the more reliable classification.
Can petrol and diesel vehicles with the same Euro number have different emission limits?
Yes. The applicable emission limits and testing requirements can differ according to the vehicle category, engine and fuel type even when vehicles belong to the same general Euro generation.
Can the Euro standard affect access to a low-emission zone?
Yes. Many low-emission zones use the vehicle's Euro standard together with factors such as fuel type and vehicle category to determine whether it may enter.
Does installing a particulate filter automatically change the Euro standard?
Not normally. The official Euro standard is linked to the vehicle's approved emissions classification. Retrofitting emission-control equipment does not necessarily result in a different official Euro classification.
What is Euro 7?
Euro 7 is the latest European emissions framework for road vehicles. It builds on earlier Euro standards and also introduces requirements covering areas such as non-exhaust particle emissions and battery durability.
150. Pothole
A pothole is a hole or depression in the road surface caused by wear, weather, water, repeated traffic loads or deterioration of the pavement. Potholes can vary greatly in size and depth and may develop gradually or become worse after freezing, heavy rain or repeated vehicle traffic.
Potholes can affect steering, braking and vehicle stability and may damage tyres, wheels or suspension components. Drivers and riders should observe the road ahead, adapt their speed and avoid sudden or dangerous manoeuvres when encountering damaged road surfaces.
Wikimedia.org • State Farm • CC BY
What is a pothole?
A pothole is a hole or depression that develops in a road surface when the pavement becomes damaged or deteriorates.
How do potholes form?
Potholes can develop through a combination of water, temperature changes, traffic loads and deterioration of the road material. Cracks can gradually expand until pieces of the surface break away.
Why are potholes dangerous?
A pothole can cause a vehicle to change direction suddenly, lose stability or suffer tyre, wheel or suspension damage. Deep potholes can present a particularly serious hazard at higher speeds.
What should you do when you see a pothole?
Reduce speed when necessary, maintain control of the vehicle and avoid abrupt steering or braking. Only move around the pothole when this can be done safely without endangering other road users.
Should you brake while driving through a pothole?
If possible, reduce your speed before reaching the pothole. Sudden heavy braking or steering while passing over a damaged surface can make the vehicle less stable.
Are potholes particularly dangerous for motorcycles?
Yes. A pothole can disturb the steering or balance of a motorcycle and may cause the rider to lose control.
Are potholes dangerous for cyclists?
Yes. Bicycle wheels can be strongly affected by deep holes or sharp edges, particularly when the cyclist has little time or space to avoid the hazard.
Can a pothole damage a car?
Yes. Severe impacts can damage tyres, wheel rims, suspension components, steering parts or wheel alignment.
Should you swerve suddenly to avoid a pothole?
No. A sudden evasive movement may create a greater danger by bringing the vehicle into conflict with cyclists, pedestrians, oncoming traffic or vehicles in another lane.
Can a warning sign indicate potholes ahead?
Yes. Depending on the country's traffic-sign system, an uneven-road or general-danger warning sign may be used where poor road conditions create a significant hazard.

Traffic rules
France