道路標識世界

It prohibits vehicles or vehicle combinations whose total width exceeds the displayed value from continuing beyond the sign.

It is commonly a circular regulatory sign showing a width in metres, feet or another local unit between horizontal arrowheads.

The width includes the vehicle, its load and attached equipment or objects that extend from either side.

Yes. Every part of the vehicle combination must comply, including the towing vehicle, trailer and load.

Yes, when they extend beyond the sides of the vehicle. Drivers must consider the widest point of the complete travelling vehicle.

Doors should be closed while driving. The ordinary travelling width is measured with the vehicle properly configured for road use.

Not necessarily. It shows the maximum legally permitted vehicle width. The physical passage may be wider, but drivers should not assume that additional clearance is available.

The sign normally prohibits vehicles wider than the displayed value. However, drivers should not attempt to pass without a practical safety margin because measurements and vehicle movement may vary.

A vehicle may move sideways because of steering corrections, road camber, wind, suspension movement or an uneven surface.

Yes. Walls, barriers, columns, bends, kerbs and protruding structures may make one part narrower than another.

Yes. Lane-specific signs may impose different restrictions where the available width varies between lanes.

Yes. Barriers, machinery and shifted lanes may reduce the usable width. Temporary width-limit signs must be obeyed.

It is normally a prohibition. A vehicle that exceeds the displayed width may not pass.

No. The applicable general, zonal or posted speed limit remains in force, although drivers should approach narrow passages slowly.

No. Traffic lights, priority signs and the ordinary priority rules remain applicable.

Yes. An advance sign may show the restriction and the distance to it so that wide vehicles can choose another route.

Do not continue. Stop where safe and use the signed diversion or another suitable route.

No. Navigation information may be outdated or incomplete. Traffic signs and actual road conditions always take precedence.

Yes. Drivers of trucks, buses, agricultural vehicles, motorhomes and vehicles carrying wide loads should know the maximum travelling width before beginning the journey.

Measure the widest part of the vehicle and load in its normal travelling configuration. Consider equipment, securing devices and any load extending beyond the bodywork.

Yes. Mirrors, arms, steps or machinery designed to be folded or retracted should be placed in the legally required travelling position before driving.

Only when signs and markings permit it and the manoeuvre can be completed safely. Do not cross a closed lane, continuous line or opposing traffic to avoid the restriction.

Stop before the restriction in a safe place and verify the vehicle’s dimensions. Choose another route when adequate clearance cannot be confirmed.

A guide may help during a slow manoeuvre in a controlled location, but the driver remains responsible. The guide must remain visible and stay away from moving traffic and crushing hazards.

Stop immediately where safe, activate the hazard warning lights and contact the police or emergency services. Do not continue when the vehicle, load or structure may be damaged or unstable.

A length limit indicates the maximum vehicle or vehicle-combination length permitted beyond the restriction. Vehicles exceeding the displayed value may not proceed.

Normally the relevant measurement applies to the complete vehicle or vehicle combination covered by the sign. National rules determine precisely how trailers and projecting loads are included.

They are used where long vehicles could have difficulty negotiating the road safely, such as on narrow streets, tight bends, constrained junctions or other locations with limited manoeuvring space.

It prohibits vehicles or vehicle combinations whose relevant mass exceeds the value displayed on the sign.

It is commonly a circular regulatory sign showing a mass in tonnes, kilograms or another local unit.

It is normally a prohibition. A vehicle exceeding the displayed limit may not continue beyond the sign.

Actual loaded mass is the weight of the vehicle as it is currently travelling, including the vehicle itself, its load, driver, passengers and other relevant equipment.

Maximum authorised mass is the highest total mass at which the vehicle is legally approved to operate. It is normally recorded in the vehicle documents.

No. A lightly loaded vehicle may have an actual mass below its maximum authorised mass. A restriction may legally refer to either measurement, depending on the sign and local law.

Yes. Cargo, passengers, fuel, equipment and other carried items may all contribute to the vehicle’s actual loaded mass.

Where the restriction concerns actual loaded mass, the driver and other occupants are normally included.

This depends on the wording of the restriction. It may apply to each vehicle separately or to the combined mass of the complete vehicle combination.

An axle-weight limit restricts the amount of mass carried by one axle or axle group rather than the total mass of the vehicle.

A vehicle may comply with the total weight limit while too much of its load is concentrated over one axle, creating excessive stress on the road or bridge.

They are often used at bridges, weak roads, historic centres, tunnels, temporary structures and roads unsuitable for heavy traffic.

Not necessarily. The displayed legal limit may include engineering and safety margins and should not be interpreted as the structure’s exact failure point.

A sign normally prohibits vehicles exceeding the displayed value. The driver must still be certain that the relevant mass does not exceed it.

The most reliable method is to use an authorised or suitable weighbridge. Vehicle documents alone normally show approved limits rather than the vehicle’s current loaded mass.

An estimate may help with planning, but it must include the vehicle, fuel, occupants, equipment, load and trailer. A weighbridge is preferable when the remaining margin is small.

No. Moving cargo within the vehicle does not change its total mass, but it can change the load carried by each axle.

Yes, when done lawfully and safely. The vehicle may continue only after its relevant mass complies and the remaining load is properly secured.

Yes. Temporary restrictions may protect a damaged bridge, weakened road, roadworks structure or road affected by flooding or thawing.

Yes. Lane-specific signs may direct heavier vehicles towards a lane or structure designed to carry them.

Yes. Advance signs may give the distance to the restriction or indicate a diversion so affected vehicles can choose another route.

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

No. Traffic lights, priority signs and ordinary priority rules remain applicable.

Do not continue. Stop where safe and follow a signed diversion or another route suitable for the vehicle’s mass.

No. Navigation information may be incomplete or outdated. Traffic signs and official restrictions always take precedence.

Only when reversing is lawful and can be completed safely. Use assistance where necessary, particularly with a long or heavy vehicle combination.

The vehicle may damage the road or structure and may be stopped, fined, unloaded or prohibited from continuing under local law.

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

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

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

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

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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

A selective barrier is a physical access-control device that blocks some traffic while allowing specified road users or authorised vehicles to pass.

Common examples include fixed bollards, removable posts, folding posts, retractable bollards, gates, rising barriers and width-filtering installations.

They may prevent through traffic, protect pedestrian or cycling routes, control access to restricted areas or allow only residents, public transport, deliveries or emergency services to enter.

Not normally. The permitted users are determined by traffic signs, permits, access systems and local regulations.

Only when cycling is permitted and sufficient safe space is provided. Cyclists must follow the signs applying to the road or path.

Pedestrians may pass where pedestrian access is permitted and a safe route is available. They should not walk beneath a moving gate or through a vehicle-only opening.

Only when motorcycles are legally permitted beyond the barrier and the opening is intended for them. Being physically able to fit through does not create permission.

Emergency vehicles may have keys, remote controls, automatic recognition or another authorised method of opening the barrier. Other road users must keep the access clear.

They may enter only when local access rules, permits or traffic signs authorise them. Permission may apply only during specified hours.

A retractable bollard is a post that can rise from or lower into the road surface to control vehicle access.

It may operate through a badge, remote control, access code, number-plate recognition, timer, control centre or automatic detection system.

Only after confirming that you are authorised and the bollard is fully lowered. Do not move merely because another vehicle has activated it.

No, unless your own access is also authorised and the system clearly permits it. The barrier may rise immediately after the first vehicle.

Red lights normally require road users to stop, while another signal may indicate when passage is permitted. Follow the displayed signals and local instructions.

Stop at a safe distance and wait until it has completed its movement. Never drive, cycle or walk beneath a moving gate or across a rising bollard.

Do not force, move or drive around it. Use the intercom or contact the operator, road authority or emergency service indicated at the location.

No, unless you are specifically authorised. Removing or repositioning access-control equipment may create danger and allow prohibited traffic to enter.

No. Traffic signs and access restrictions remain applicable even when the physical barrier is temporarily open or lowered.

No. An open physical barrier does not cancel a regulatory traffic sign.

Not by itself. Drivers must follow the applicable speed limit and approach slowly enough to stop before the installation.

No. Traffic lights, priority signs and ordinary priority rules remain applicable unless another traffic arrangement indicates otherwise.

Do not stop or park where the vehicle would block authorised access, emergency services, pedestrians or cyclists.

They may be difficult to see, especially in darkness, congestion or poor weather. A collision can cause a rider to fall into nearby traffic or other obstacles.

Reduce speed, identify the intended opening and pass through in a straight and controlled line. Avoid overtaking another cyclist at the barrier.

Approach slowly, wait for the access system to respond and check for pedestrians and cyclists before crossing their route.

Stop safely, activate the hazard warning lights where appropriate and report the collision. Do not continue if the vehicle, barrier or access system may be damaged.

A low-emission zone is an area where access by more polluting vehicles is restricted in order to improve air quality.

They are intended to reduce traffic-related air pollution, particularly pollutants produced by older or higher-emitting vehicles.

Restrictions may apply to cars, vans, trucks, buses, motorcycles or other motor vehicles, depending on the local regulations.

Access commonly depends on the vehicle's fuel type, Euro emission standard, vehicle category and sometimes other technical characteristics.

A Euro emission standard indicates which European pollutant-emission requirements a vehicle satisfies. Higher Euro numbers generally represent newer and stricter emissions requirements.

Not necessarily. Low-emission zones often apply different access criteria to diesel and petrol vehicles because their pollutant-emission characteristics differ.

Fully electric vehicles are generally permitted because they produce no combustion-engine exhaust emissions while driving, although local registration or administrative requirements may still apply.

Some low-emission zones provide exemptions, temporary permits or day passes for certain vehicles or circumstances.

Traffic signs normally indicate the entrance and exit of the zone. Drivers should check the applicable restrictions before passing the entry sign.

Enforcement may use automatic licence-plate cameras, roadside controls or registration databases. The exact system varies between cities and countries.

Yes. Foreign vehicles must comply with the applicable access criteria and may also have to complete an online registration before entering.

No. Each country, region or city can establish different boundaries, emission requirements, exemptions and enforcement procedures.

It is a sign that shows the destinations and routes available at an intersection.

An advance direction sign is placed before an intersection so drivers can identify their route and choose the correct lane in good time.

A direction sign is normally placed at or close to the intersection and points towards a particular destination or route.

It commonly displays place names, arrows, road numbers, route symbols or diagrams of the intersection.

The arrows show which direction drivers should follow to reach the displayed destinations.

Usually, yes. Arrow design and orientation can vary, especially on signs positioned above traffic lanes.

It shows the approximate arrangement of the roads and exits at the approaching intersection without necessarily reproducing every island, verge or road detail.

No. It simplifies the layout to make the available directions easier to understand.

Yes. Road numbers help drivers follow a numbered national, regional, international or motorway route.

Yes. A symbol may indicate that the displayed route leads to or continues over a motorway, expressway or another particular road category.

Yes. Separate direction signs may indicate hospitals, railway stations, airports, parking areas, ports, tourist attractions and other destinations.

No, unless another regulatory sign or lane marking makes that direction mandatory. A route-guidance sign normally provides information rather than imposing a movement.

No. A displayed destination does not override a no-turn sign, mandatory direction, traffic light or lane arrow.

No. Priority is determined by traffic lights, priority signs and the applicable intersection rules.

No. Drivers must follow the applicable general, zonal, posted or vehicle-specific speed limit.

Choose the appropriate lane as early as reasonably possible after reading the sign and checking the lane arrows and road markings.

Yes, when the movement is legal and safe. Check mirrors and blind spots, signal where required and give way to traffic already using the target lane.

The indication normally relates to that lane or group of lanes. Follow the lane arrows and overhead signs carefully.

Follow the regulatory sign, traffic light or authorised officer. Route guidance does not override a prohibition or obligation.

Follow the temporary diversion and traffic arrangement that is legally in force, even when permanent direction signs still show the usual route.

Continue safely and find another legal route. Do not reverse, stop suddenly or cut across traffic lanes.

No. Navigation instructions may be outdated or unsuitable for the vehicle. Traffic signs and current road conditions take precedence.

Yes. A route may include height, width, weight, access or dangerous-goods restrictions. Drivers must observe every applicable sign.

Yes. The language or languages used depend on the country, region and local signing rules.

Often, yes. Destinations may be grouped or ordered according to direction, importance or distance, but the exact convention differs between countries.

It means that drivers travelling on the indicated road have priority over traffic entering from intersecting roads at the next junction.

No. Priority at the next junction applies to one particular junction. A priority road normally keeps its priority across several junction until its status ends.

No. The term main road may describe a larger, busier or more important road, but legal priority is determined by traffic signs, signals and local rules.

It may be indicated by a priority-junction sign showing a thick line for the priority route and thinner lines for the roads that must give way.

Yes. On signs using a junction diagram, the thicker line normally represents the road followed by traffic with priority.

No. The priority route may turn left or right. A diagram or supplementary panel may show which branch retains priority.

They commonly face a give-way or stop sign, requiring them to yield to traffic on the priority route.

Not when legally placed signs establish another priority arrangement at that junction. Drivers must follow the actual signs rather than the ordinary default rule.

No. After passing the indicated junction, the priority arrangement at the next junction must be determined separately.

No. Approach at a safe speed and remain prepared for another road user to fail to give way.

No. Priority is not an obligation to continue. Slow down or stop whenever proceeding would create danger.

No. Do not enter when congestion is likely to leave your vehicle stopped inside the junction and obstructing other traffic.

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

No. Drivers must still yield to pedestrians where crossings, traffic signals or turning rules require it.

It regulates priority between traffic approaching the junction, but drivers must still respect continuing bike paths, cycle crossings and turning rules.

Yes, when following the route involves a change of direction and local law requires signalling. Priority does not remove the obligation to indicate.

No. An indicator communicates your intended movement but does not allow you to endanger or obstruct another road user.

Normally, yes. Priority over side-road traffic does not automatically give a left-turning driver priority over lawful oncoming traffic.

Functioning traffic lights normally control the junction instead of the priority signs. Local rules determine what applies when the lights are switched off or flashing.

Yes. Instructions from an authorised traffic controller normally take precedence over signs, signals and ordinary priority rules.

No. Overtaking remains subject to the ordinary rules, visibility, road markings and any separate prohibition signs.

No. The ordinary stopping and parking rules and any local signs or markings remain applicable.

The special priority indicated by the sign has been completed. At later junctions, follow the signs, signals or default priority rule applying there.

Traffic lights are signals that use coloured lights, arrows or road-user symbols to regulate traffic movements.

A red light requires road users to stop before the stop line or signal and remain stopped until movement is permitted.

A steady amber light normally requires drivers to stop unless they are already too close to stop safely. It warns that the signal is changing to red.

A green light permits road users to pass the signal, but only when the route is clear and the intended movement is otherwise legal.

No. You may still have to give way to pedestrians, cyclists, oncoming traffic or other road users when turning or following a conditional arrow.

No. Do not enter when congestion is likely to leave you stopped inside the intersection and obstructing crossing traffic.

Stop before the stop line. When no stop line is provided, stop before the traffic light or at another legally prescribed position.

No. The required stop must normally be completed before the stop line. Do not stop on a pedestrian or cycle crossing.

Stop when this can be done safely. Continue only when you are already too close to stop without creating danger.

No. Do not accelerate to avoid stopping. Maintain control and stop unless doing so safely is no longer possible.

They have the same general meaning as circular lights, but the prohibition or permission applies only to the direction shown by the arrow.

It may permit travel in the indicated direction while other movements remain prohibited. Drivers may still have to give way to conflicting traffic and pedestrians.

Not universally. Drivers must follow the complete local sign arrangement. A traffic signal does not necessarily cancel a separate regulatory prohibition.

Only where local law or a specific sign or signal expressly permits it. There is no universal right to turn on red.

It warns of a potential hazard and normally allows cautious passage. The ordinary priority arrangement remains applicable.

Reduce speed, observe the intersection carefully and follow the applicable priority signs or default priority rules.

Its meaning depends on local law. At railway crossings and some movable bridges, flashing red lights normally require road users to stop.

A red cross normally closes the lane, a green downward arrow opens it and an amber diagonal arrow instructs drivers to leave the lane in the indicated direction.

No. Move out of the lane safely before reaching the red cross unless an authorised person or emergency rule directs otherwise.

It warns that the lane is closing or unavailable ahead. Drivers must move into the adjacent lane indicated by the arrow when safe.

Yes. A signal displaying a bicycle symbol applies to the road users legally covered by that signal rather than to general motor traffic.

Yes. Pedestrian lights normally use red and green human figures to indicate whether pedestrians may begin crossing.

It normally warns that the crossing period is about to end. Pedestrians who have not started should wait for the next green signal.

A person who entered lawfully should continue without unnecessary delay. Turning drivers must allow the crossing to be completed safely.

Yes. Public-transport signals may use bars, circles, triangles or other symbols that apply only to authorised service vehicles.

They commonly replace the priority arrangement at that location. Priority signs may apply again when the normal signals are inactive or flashing.

Yes. Instructions from an authorised traffic controller normally take precedence over lights, signs, markings and ordinary rules.

Reduce speed and follow the priority signs, temporary signals, authorised personnel or default priority rules that apply.

Yes, when you entered lawfully and must leave the intersection. Complete the movement cautiously without endangering other road users.

No. Drivers may proceed but must continue at a safe and legal speed.

This depends on local law. In many countries, a driver temporarily stopped in traffic is still considered to be driving and may not use a handheld device.

A traffic lights warning alerts drivers that traffic signals are located ahead.

It may be used where traffic lights are unexpected, difficult to see sufficiently early or located on a road where advance warning improves safety.

Remain alert, reduce speed when necessary and be prepared to stop at the traffic lights or behind waiting traffic.

Pedestrian lights are traffic signals that indicate when pedestrians may begin crossing a road.

They commonly display a red standing person and a green walking person. Their design may vary between countries.

It means that pedestrians must not begin crossing.

It means that pedestrians may begin crossing, provided they still observe the road and cross without unnecessary delay.

No. Turning vehicles, emergency vehicles or traffic following another authorised signal may still cross the pedestrian route. Pedestrians should remain attentive.

It normally warns that the permitted crossing period is about to end. Pedestrians who have not started should consider waiting for the next green signal.

Its meaning varies between countries. It commonly means that pedestrians must not begin crossing, while those already on the road should finish without delay.

A countdown may show approximately how much time remains before the signal changes. It does not remove the duty to cross cautiously.

Begin only when there is enough time to cross safely and without stopping unnecessarily on the road. Waiting for the next green phase may be safer.

Continue crossing at a normal pace towards the nearest safe side. Do not turn back suddenly, stop unnecessarily or run into another traffic stream.

Yes. Drivers should allow pedestrians who entered lawfully to complete the crossing safely, even when vehicle traffic receives permission to proceed.

Some signal systems permit turning vehicles and pedestrians at the same time. Turning drivers must give way where required and must not endanger pedestrians.

It is a signal phase during which conflicting vehicle movements are stopped so pedestrians can cross without permitted traffic turning across their route.

It is a phase in which pedestrians may cross several or all approaches while vehicle traffic is stopped. Diagonal crossing is permitted only when the signals and markings allow it.

They may indicate that the same pedestrian signal applies simultaneously to several crossing directions. The exact meaning depends on local law.

Check that approaching and turning vehicles are stopping and that the route is clear. A green signal does not make a collision impossible.

Yes. They should proceed at a normal pace and should not linger, stop unnecessarily or obstruct traffic on the crossing.

Pedestrians may have to follow the traffic lights controlling vehicles, an authorised officer or the ordinary pedestrian-crossing rules.

A push button normally registers a request for a pedestrian crossing phase. Pressing it does not itself permit crossing; pedestrians must wait for the appropriate signal.

Normally not. Once the request has been registered, additional presses usually have no effect.

Audible signals use sounds to help pedestrians with visual impairments identify when crossing is permitted or when the signal is changing.

Tactile signals may use a vibrating button, rotating cone or raised markings to provide crossing information to pedestrians with visual impairments.

Not normally. A cyclist riding a bicycle must follow the applicable cycle or vehicle signal unless a combined pedestrian-and-cycle signal applies.

A person walking beside a bicycle is normally treated as a pedestrian and follows the pedestrian signal.

They display pedestrian and bicycle symbols and apply to the road users indicated by those symbols.

No. Instructions from an authorised traffic controller normally take precedence over pedestrian lights.

Cross only according to the functioning vehicle signals, priority rules and instructions from authorised personnel. Proceed cautiously and take approaching traffic into account.

Road markings are lines, symbols, arrows or words placed on the road surface to regulate, guide or provide information to road users.

They can separate traffic lanes, indicate stopping or priority points, guide traffic movements and mark crossings or reserved areas.

No. Many markings are internationally similar, but their colours, designs and exact legal meanings can vary between countries.

An all-way stop is an intersection where drivers approaching from every direction are required to stop before entering.

The applicable priority rules depend on the country. Some countries use arrival order and additional right-of-way rules, while others apply different rules, so drivers should follow the local traffic regulations.

Yes. Where a stop sign requires a complete stop, the driver must stop even when no other vehicles or road users are visible.

A crossroad shape is a simplified diagram showing the physical arrangement and directions of roads at an upcoming intersection.

It helps drivers understand the junction layout in advance and choose the correct direction before reaching the intersection.

No. These diagrams are normally simplified and may omit features such as traffic islands, medians or other minor road details so that the important directions remain easy to understand.

A climbing lane is an additional lane on an uphill section of road that provides space for slower vehicles while allowing faster vehicles to continue past them.

Climbing lanes are generally intended for vehicles travelling substantially slower than the normal traffic flow, particularly heavy vehicles. The exact restrictions depend on local signs and traffic rules.

Follow the road markings and signs, check surrounding traffic and merge safely into the continuing traffic lane without forcing other road users to brake or change direction suddenly.

A bike box is a marked waiting area at a signal-controlled intersection where cyclists can position themselves ahead of motor vehicles during a red light.

They help make cyclists more visible to drivers and allow cyclists to position themselves according to the direction they intend to travel.

Normally, no. Motor vehicles should stop behind the stop line provided for them so that the designated cyclist waiting area remains clear.

Left-hand traffic means that vehicles normally drive on the left side of a two-way road. Traffic approaching from the opposite direction therefore passes on the driver's right.

Vehicles normally overtake on the right, although exceptions can apply depending on the road layout and national traffic rules.

Most vehicles designed for left-hand traffic have the steering wheel on the right-hand side. However, vehicles with the steering wheel on the opposite side can also be legally used in many countries.

A speed feedback display is an electronic roadside device that measures an approaching vehicle's speed and shows that speed to the driver.

They are used to increase drivers' awareness of their actual speed and encourage compliance with the applicable speed limit.

Normally, no. The legally applicable speed is determined by the traffic rules and regulatory speed-limit signs, while the feedback display simply informs the driver of their measured speed.

A driving licence is an official authorisation to drive specified categories of motor vehicle.

The terms may refer to the same document, depending on the country. Some countries use permit specifically for learners or temporary authorisations.

A provisional or learner licence allows a person to practise driving under specified restrictions before obtaining a full licence.

A full licence is issued after the holder has completed the required tests or training. Restrictions may still apply because of age, vehicle type, medical fitness or licence codes.

No. Driving licences are divided into categories for motorcycles, cars, buses, trucks, trailers and other vehicles.

A licence category identifies the type and size of vehicle the holder is authorised to drive.

Yes. Holding a licence for one category does not normally authorise driving a vehicle belonging to another category.

Yes. Codes may restrict the holder to an automatic transmission, corrective lenses, an adapted vehicle or another specified condition.

In some countries, passing the test in an automatic vehicle restricts the holder to automatic vehicles until an additional test or procedure is completed.

Usually, yes. The document, individual categories or medical authorisation may have expiry dates and require renewal.

No. The licence and the category required for the vehicle must remain valid.

This depends on local law. Many countries require drivers to carry the original licence and present it to an authorised officer when requested.

Not normally. A photograph, scan or photocopy is not generally a substitute for the original document unless an official digital-licence system is legally recognised.

No. It proves driving authorisation, not ownership, registration or insurance.

Requirements may include a theory test, eyesight test, practical driving test, medical examination or compulsory training.

No. Minimum ages differ between countries and vehicle categories.

Only where the provisional-licence system permits independent driving. Other learners must be accompanied by an approved supervisor or instructor.

Often not. Provisional and learner licences are frequently valid only in the country or region that issued them.

An international driving permit is a standardised translation of a valid national licence intended to help authorities interpret it abroad.

No. It normally has legal value only when presented together with the valid national driving licence on which it is based.

This depends on the destination, length of stay, residence status and agreements between the countries concerned. An exchange or international permit may be required.

Some countries exchange recognised foreign licences without new tests, while others require theory, practical or medical examinations.

Yes. A medical condition may require an assessment, shorter validity period, adapted vehicle or licence restriction.

This depends on local law. Drivers remain responsible for ensuring that they are physically and mentally fit to drive safely.

Often, yes. Drivers of trucks, buses, taxis or vehicles used commercially may require professional competence, medical examinations or periodic training.

The holder may not drive during the suspension period, even if the physical document remains in their possession.

Disqualification is a legal prohibition on driving, usually imposed by a court or competent authority for a specified period or until conditions are fulfilled.

Report it where required and apply for a replacement through the competent licensing authority. Do not continue driving when local law requires the original document to be carried.

Request a replacement when the document is unreadable, damaged or no longer allows the holder to be identified reliably.

This depends on the country and whether the address appears on the licence. Drivers must follow the local notification and replacement procedure.

A road location marker is a numbered reference point identifying a measured position along a particular road or route.

A kilometre marker indicates the number of kilometres measured from an established starting point on the road.

A hectometre marker identifies a position at intervals of 100 metres. One kilometre contains ten hectometres.

It normally identifies a point approximately 14 kilometres and 700 metres from the route’s reference origin.

No. It normally measures the position along the road from a fixed reference origin rather than the remaining distance to a destination.

It begins at a reference point chosen for that road, such as the start of the route, a border, an administrative boundary or another officially defined origin.

No. It increases in the officially defined direction of the route. Drivers travelling in the opposite direction may see the values decrease.

It may appear as a numbered roadside post, small sign, plate, marker attached to a barrier or numbers painted beside the carriageway.

Many countries use kilometre markers, while countries using imperial measurements may use mile markers. Designs and intervals differ.

They are intended to represent 100-metre intervals, but their physical placement and permitted tolerances depend on the road authority and local conditions.

Give the road number, marker value, direction of travel and nearest junction or landmark where possible.

The same kilometre value may occur on many different roads. The road number identifies which route the marker belongs to.

Divided roads have separate carriageways. Reporting the direction helps emergency services approach the correct side without making a long diversion.

Yes. Reporting the nearest marker can help breakdown and emergency services identify the affected road section more accurately.

Yes. The marker can help road authorities locate an obstruction, damaged barrier, animal, collision or other dangerous situation.

Normally not. It is a reference or identification device rather than a regulatory sign.

No. The applicable speed comes from general traffic rules and regulatory speed signs.

No. Traffic lights, priority signs and ordinary intersection rules remain applicable.

No. Passing a kilometre or hectometre marker does not normally begin or end a traffic regulation.

Yes. Road authorities use reference points to locate signs, barriers, bridges, defects, works and other infrastructure precisely.

Coordinates can be useful, but a road reference marker may be easier for road operators and emergency services to connect with the correct carriageway and road section.

Use the nearest visible marker together with the road number, direction, junctions and other identifiable features.

No. Do not stop in a live lane or another prohibited location. A passenger may note the marker, or the driver may read it after stopping somewhere safe during an actual emergency.

Normally not. Temporary traffic routes may move traffic away from the marker’s usual position, but the official road reference system generally remains unchanged.

A road number is an identifier assigned to a particular road or route, usually consisting of numbers alone or a combination of letters and numbers.

Road numbers are commonly displayed on route markers, direction signs and advance direction signs to help drivers follow the correct route.

Yes. Countries use different prefixes, colours and numbering systems to distinguish motorways, national roads, regional roads and international routes.

Countdown markers are a series of signs that progressively indicate how close a driver is to an upcoming exit, junction, crossing or other important point.

The number of bars normally decreases as the driver approaches the indicated location. Depending on the country, the bars may represent fixed distances or simply successive stages of the approach.

They are commonly associated with motorway exits, major junctions and railway crossings, although their use and design differ between countries.

A public toilet is a toilet facility provided for travellers or members of the public, often at rest areas, service stations, parking facilities or tourist locations.

They are commonly indicated by a toilet or WC pictogram on service, facility or direction signs. The design varies between countries.

They are commonly available at rest areas, motorway service areas, filling stations and other traveller facilities.

A rest area is a designated place beside a road or motorway where travellers can park and take a break from their journey.

Depending on the location, a rest area may provide parking, toilets, picnic facilities, food, fuel, charging stations or other traveller services.

Rest areas give drivers a suitable place to stop, rest and reduce fatigue without stopping on the main traffic lanes or roadside.

A traffic mirror is a convex roadside mirror that helps road users see around an obstruction or into a road with limited visibility.

They may be placed near intersections, narrow roads, bends, car-park exits, private driveways, tunnels or other locations where buildings, vegetation or road geometry obstruct the view.

A convex surface provides a wider field of view than a flat mirror, allowing more of the approaching road to be seen.

No. The reflected image is distorted, and objects normally appear smaller and farther away than they really are.

Not reliably. The curved image makes it difficult to estimate how fast another road user is approaching.

No. Distance can appear greater than it really is, so an approaching vehicle may reach the intersection sooner than expected.

Yes. Its position and viewing angle may leave parts of the road outside the reflected image. Small cyclists, motorcycles or pedestrians may also be difficult to notice.

No. It does not change priority. Drivers must continue to follow stop signs, give-way signs, traffic lights and the ordinary priority rules.

No. Another road user may be outside the reflected area, hidden by glare or too small to notice. Always check the road directly before proceeding.

Yes. The mirror does not replace the mandatory complete stop. Stop at the prescribed position, then use direct observation and the mirror as additional information.

Yes. You may proceed only when traffic with priority can continue without being forced to brake, stop or change direction.

Approach slowly, stop when required and scan the mirror for movement. Then look directly in both directions and continue only after confirming that the road is clear.

No. Alternate between the mirror and direct observation. The mirror should supplement rather than replace normal checks.

Yes. Rain, water droplets and spray may blur or partially obscure the reflected image.

Yes. Dew, condensation, frost, ice or snow may make the mirror difficult or impossible to use.

Yes. Sunlight may create glare or reflections that hide approaching road users.

Yes. Reflected headlights may make it difficult to determine the exact direction, distance or speed of an approaching vehicle.

Yes. Wind, impacts, vandalism, vibration or temperature changes may alter its orientation and make the reflected view inaccurate.

Do not rely on it. Proceed with additional caution and report the defect to the responsible road authority or property owner.

No. The applicable road or posted speed limit remains in force, but restricted visibility normally requires a lower approach speed.

No. Use the horn only where local law permits it and a warning is reasonably necessary to prevent danger.

Yes. It may help them observe approaching traffic, but they must also look directly and follow the applicable crossing and priority rules.

A mirror may generally be installed on private property with the owner’s permission, subject to local rules. Installing one on, above or beside a public road normally requires permission from the road authority.

No. Removing vegetation, relocating parking, improving the intersection layout or changing traffic circulation may provide a safer and more reliable solution.