Traffic signsPanama
51. Child
A child is a young person who requires particular care and protection in road traffic because of their smaller size, limited experience and developing ability to recognise traffic hazards. Children may participate in traffic as pedestrians, cyclists or passengers in vehicles.
Drivers should take extra care when children are present or may reasonably be expected, particularly near schools, playgrounds, residential areas and pedestrian crossings.
Wikimedia.org • Trailnet • CC BY-SA
Why are children particularly vulnerable in traffic?
Children may have more difficulty judging vehicle speed, distance and traffic situations and are less visible to drivers because of their smaller size.
How should drivers behave when children are near the road?
Drivers should reduce speed when necessary, remain especially alert and be prepared to stop if a child enters or approaches the roadway.
How should children travel in a car?
Children should use an appropriate child restraint or seat belt according to their size, age and the applicable national rules.
52. Disability
Disability refers to a physical, sensory, intellectual or other long-term condition that, together with environmental or accessibility barriers, may affect how a person participates in everyday activities. In road traffic, people with disabilities may participate as pedestrians, drivers, cyclists, passengers or users of mobility devices.
Road systems should take account of accessibility, safe crossings, suitable parking and sufficient time and space for people with different mobility or sensory needs. Drivers should take particular care around road users who may require additional time or space to travel safely.
Wikimedia.org • MarkBuckawicki • CC0
Are people with disabilities separate road users?
No. A person with a disability may participate in traffic as a pedestrian, driver, cyclist, passenger or another type of road user and generally follows the rules applying to that role.
Why is accessibility important in road traffic?
Accessible infrastructure such as step-free routes, suitable crossings, clear signals and reserved parking can make it easier and safer for people with different mobility or sensory needs to travel independently.
How should drivers behave around people with disabilities?
Drivers should remain patient, leave sufficient space and allow enough time for people to move or cross safely, particularly where their mobility or perception may be affected.
53. Motorail
Motorail is a rail service that transports passengers together with their car, motorcycle or other eligible vehicle on the same journey. The passengers normally travel in passenger coaches or sleeping accommodation while their vehicle is carried on dedicated vehicle-transport wagons.
Motorail services are mainly intended for long-distance travel, allowing travellers to avoid driving the entire route while still having their own vehicle available at their destination. Vehicle dimensions, loading procedures and eligible routes depend on the operator.
Wikimedia.org • NAC • CC BY-SA
What is Motorail?
Motorail is a train service that transports passengers and their vehicle together, with the vehicle carried on specialised railway wagons.
Which vehicles can be carried on a Motorail train?
Depending on the operator and route, Motorail services may carry cars, motorcycles or other eligible road vehicles. Size and weight restrictions may apply.
Do passengers remain inside their car on a Motorail train?
No. Passengers normally leave their vehicle after loading and travel separately in the passenger accommodation provided by the train.
54. km/h
km/h means kilometres per hour and is a unit used to measure speed. It expresses how many kilometres a vehicle or other moving object would travel in one hour if it maintained the same speed.
For example, a speed of 50 km/h means travelling at a rate of 50 kilometres per hour. Kilometres per hour are widely used for road speeds and speed limits in countries that use the metric system.
Wikimedia.org • Bluescan sv.wiki • CC0
What does km/h mean?
km/h is the abbreviation for kilometres per hour, a unit used to measure speed.
What does 50 km/h mean?
A speed of 50 km/h means that, if the speed remained constant, the vehicle would travel 50 kilometres in one hour.
Is km/h the same as mph?
No. km/h measures speed in kilometres per hour, while mph measures speed in miles per hour. The two units therefore represent different numerical speeds.
55. mph
mph means miles per hour and is a unit used to measure speed. It expresses how many miles a vehicle or other moving object would travel in one hour if it maintained the same speed.
For example, a speed of 50 mph means travelling at a rate of 50 miles per hour. One mile per hour is approximately 1.61 km/h, so speeds expressed in mph and km/h have different numerical values.
Wikimedia.org • Greg Gjerdingen • CC BY
What does mph mean?
mph is the abbreviation for miles per hour, a unit used to measure speed.
What does 50 mph mean?
A speed of 50 mph means that, if the speed remained constant, the vehicle would travel 50 miles in one hour.
Is mph the same as km/h?
No. mph measures speed in miles per hour, while km/h measures speed in kilometres per hour. 1 mph is approximately 1.61 km/h.
56. Speedometer
A speedometer is an instrument in a vehicle that shows the vehicle's current speed. It is normally displayed on the instrument panel and may use an analogue dial, a digital display or both.
Drivers should use the speedometer to monitor their speed and remain within the applicable speed limit. The displayed unit is usually kilometres per hour or miles per hour, depending on the country and vehicle.
Wikimedia.org • Andreas Schmidt • CC BY-SA
What is a speedometer?
A speedometer is an instrument that displays the current speed of a vehicle.
Where is the speedometer located?
It is normally located on the vehicle's instrument panel or digital driver display, where it can be seen easily while driving.
Which units can a speedometer use?
A speedometer may display speed in kilometres per hour (km/h), miles per hour (mph) or both, depending on the vehicle and market.
57. Ride height
Ride height is the height at which a vehicle's body or chassis sits above the road surface. It is determined mainly by the suspension, wheels and tyres and can also change according to the vehicle's load.
Changing the ride height by lowering or raising the suspension can affect ground clearance, wheel alignment, handling and the space available between the vehicle and the road. Vehicle modifications must comply with the technical and approval rules that apply in the country.
Wikimedia.org • mark6mauno • CC BY
What is ride height?
Ride height describes how high a vehicle's body or chassis sits above the road surface.
What affects a vehicle's ride height?
Ride height can be affected by the suspension, wheel and tyre dimensions, vehicle load and suspension modifications.
Can a vehicle's ride height be changed?
Yes. Suspension modifications can lower or raise a vehicle, but such modifications may be subject to technical approval, inspection and safety requirements.
58. Dirt road
A dirt road is an unpaved road whose surface consists mainly of natural soil, earth or compacted ground rather than asphalt, concrete or an added gravel surface. Dirt roads are commonly found in rural, agricultural, forest and remote areas.
Drivers on dirt roads should adapt their speed to the surface conditions and avoid sudden braking, acceleration or steering. Dust, mud, ruts, potholes and reduced tyre grip can make driving more difficult, especially during or after bad weather.
Wikimedia.org • Игоревич • CC0
What is a dirt road?
A dirt road is an unpaved road surfaced mainly with natural soil or compacted earth.
What is the difference between a dirt road and a gravel road?
A dirt road mainly uses the natural earth or soil as its driving surface, while a gravel road normally has a deliberately added layer of gravel or crushed stone.
How should you drive on a dirt road?
Use a suitable speed, increase following distance when necessary and accelerate, brake and steer smoothly. Extra care may be required when the surface is dusty, muddy, rutted or uneven.
59. Driving
Driving is the act of controlling and operating a vehicle or other recognised means of transport in traffic. It involves steering, accelerating, braking, observing the road and interacting safely with other road users.
Safe driving requires the driver to remain in control, follow traffic rules and signals, observe surrounding traffic and adapt to road, weather and visibility conditions.
Wikimedia.org • BP63Vincent • CC BY-SA
What is driving?
Driving is the act of controlling and operating a vehicle while travelling in traffic.
What does safe driving require?
Safe driving requires proper vehicle control, attention to the road, compliance with traffic rules and appropriate reactions to other road users and changing conditions.
Who can legally drive a motor vehicle?
The requirements vary by country and vehicle type. Drivers may need to meet minimum-age, driving-licence, medical-fitness and vehicle-category requirements.
60. Start-stop system
A start-stop system is a vehicle system that automatically switches off the engine when the vehicle is stationary and restarts it when the driver is ready to move again. It is commonly used in vehicles with combustion engines to reduce unnecessary engine idling.
The system normally operates automatically when certain conditions are met, such as when the vehicle stops in traffic. Its operation does not replace the driver's responsibility to control the vehicle safely and follow the applicable traffic rules.
Wikimedia.org • Bindydad123 • CC BY-SA
What is a start-stop system?
A start-stop system automatically switches off the engine when the vehicle is stationary and restarts it when the driver is ready to continue.
Why do vehicles use a start-stop system?
The system is primarily intended to reduce unnecessary engine idling, particularly when a vehicle is waiting in traffic.
Does the engine always switch off when the vehicle stops?
Not necessarily. The system may keep the engine running when operating conditions do not allow an automatic stop, depending on the vehicle and its systems.
61. Manual transmission
A manual transmission is a vehicle transmission in which the driver selects the gears manually, usually using a gear lever together with a clutch pedal. The driver operates the clutch to disconnect and reconnect the engine from the transmission when starting, stopping or changing gears.
Driving a manual vehicle requires the driver to coordinate the clutch, accelerator and gear selection. Compared with an automatic transmission, gear changes are controlled directly by the driver rather than being performed automatically by the vehicle.
Wikimedia.org • 21C117 • CC BY-SA
What is a manual transmission?
A manual transmission is a gearbox in which the driver manually selects the appropriate gear, normally using a gear lever and clutch pedal.
What does the clutch do in a manual vehicle?
The clutch temporarily disconnects the engine from the transmission, allowing the driver to start, stop and change gears smoothly.
What is the difference between a manual and automatic transmission?
With a manual transmission, the driver selects and changes gears. An automatic transmission normally selects the appropriate gears automatically without requiring a conventional clutch pedal.
62. Automatic transmission
An automatic transmission is a vehicle transmission that changes gears automatically without requiring the driver to operate a conventional clutch pedal and manually select each gear. Depending on the design, the driver normally selects positions such as park, reverse, neutral and drive while the transmission manages gear changes.
An automatic transmission can make driving simpler by removing the need to coordinate a clutch pedal and manual gear changes. Automatic transmissions include several different technologies, such as conventional automatics, continuously variable transmissions and dual-clutch systems.
Wikimedia.org • Jhcbs1019 • CC BY-SA
What is an automatic transmission?
An automatic transmission is a gearbox that automatically selects and changes gears without requiring the driver to operate a conventional clutch pedal.
How is an automatic transmission different from a manual transmission?
With an automatic transmission, gear changes are handled automatically, while a manual transmission normally requires the driver to operate a clutch and select each gear manually.
Do all automatic transmissions work in the same way?
No. Different designs include conventional automatic transmissions, continuously variable transmissions and dual-clutch systems, although they can all operate without the driver manually controlling a clutch during normal driving.
63. Throttle
A throttle is a control used to regulate the power produced by an engine or motor. In most cars and trucks, the driver controls the throttle through the accelerator pedal, while motorcycles commonly use a twist grip on the handlebar.
Increasing the throttle generally increases the power available for acceleration, while reducing it decreases the power delivered to the wheels. The exact system differs between combustion-engine, hybrid and electric vehicles.
Wikimedia.org • Santeri Viinamäki • CC BY-SA
What is a throttle?
A throttle is a control that regulates how much power an engine or motor produces.
How does a driver control the throttle?
In most cars, the throttle is controlled using the accelerator pedal. Motorcycles and some other vehicles commonly use a twist-grip throttle.
Is the throttle the same as the accelerator?
They are closely related but not exactly the same. The accelerator is the driver's control, while the throttle refers more broadly to the system that responds to that input and regulates engine or motor power.
64. Tachometer
A tachometer is an instrument that shows the rotational speed of an engine or motor, usually measured in revolutions per minute (RPM). It is commonly displayed on the vehicle's instrument panel near the speedometer.
A tachometer helps the driver understand how fast the engine is rotating and can assist with selecting an appropriate gear in vehicles with a manual transmission. It measures engine speed rather than the vehicle's road speed.
Wikimedia.org • メルビル • CC BY-SA
What is a tachometer?
A tachometer is an instrument that measures and displays the rotational speed of an engine or motor, usually in revolutions per minute.
What does RPM mean on a tachometer?
RPM means revolutions per minute and indicates how many complete rotations the engine's crankshaft makes in one minute.
Is a tachometer the same as a speedometer?
No. A tachometer shows engine rotational speed, while a speedometer shows the vehicle's road speed.
65. Steering wheel
A steering wheel is the primary control used by a driver to change the direction of a vehicle. Turning the steering wheel operates the steering system, which changes the angle of the steered wheels and directs the vehicle along the intended path.
The driver should use the steering wheel smoothly and remain in full control of the vehicle. Modern steering systems may include power assistance, electronic controls and buttons for functions such as audio, cruise control or driver information.
Wikimedia.org • Mario Roberto Durán Ortiz • CC BY-SA
What is a steering wheel?
A steering wheel is the driver's main control for changing the direction in which a vehicle travels.
How does a steering wheel control the vehicle?
Turning the steering wheel operates the vehicle's steering system, which changes the direction of the steered wheels.
Should you make sudden steering movements?
Normally, no. Steering should be smooth and controlled because sudden movements can destabilise the vehicle or create danger for other road users.
66. Power steering
Power steering is a steering system that assists the driver in turning the vehicle's wheels, reducing the physical effort required at the steering wheel. The assistance may be provided hydraulically, electrically or by a combination of systems.
Power steering makes vehicles easier to manoeuvre, particularly at low speeds and while parking. The amount of assistance may vary with vehicle speed so that steering remains stable and responsive during faster driving.
Wikimedia.org • Samf4u • CC BY-SA
What is power steering?
Power steering is a system that assists the driver's steering effort, making the steering wheel easier to turn.
What types of power steering are used?
Vehicles may use hydraulic, electro-hydraulic or electric power steering, depending on their design.
What happens if power steering fails?
Steering may become considerably heavier or a warning may appear. The driver should maintain control, reduce speed safely and have the steering system checked as soon as possible.
67. Visual scanning
Visual scanning is the driving technique of continuously observing the road ahead, mirrors, side areas and surrounding traffic to identify hazards and changing traffic situations as early as possible. Effective scanning means moving attention regularly between different parts of the traffic environment rather than concentrating on a single point.
Drivers should look well ahead, check mirrors regularly and observe relevant side areas and blind spots, particularly before changing speed, direction or road position.
Wikimedia.org • B137 • CC BY-SA
What is scanning while driving?
Scanning means continuously observing different parts of the traffic environment so that hazards and changes can be detected early.
What should a driver scan?
A driver should regularly observe the road ahead, mirrors, intersections, side areas, vulnerable road users and relevant blind spots.
Why is scanning important?
Scanning helps drivers identify hazards earlier and gives them more time to adjust speed, position or direction safely.
68. Mirror
A mirror is a device fitted to a vehicle that allows the driver to observe traffic behind and beside the vehicle without turning away from the road ahead for an extended period. Vehicles commonly use an interior rear-view mirror and one or more exterior side mirrors.
Mirrors help drivers monitor surrounding traffic before changing direction, changing lane, overtaking, merging or slowing down. Because mirrors cannot show every area around a vehicle, drivers should also check their blind spots by direct observation where necessary before manoeuvring.
Wikimedia.org • Petar Milošević • CC BY-SA
What is a vehicle mirror?
A vehicle mirror allows the driver to observe traffic and other road users behind or beside the vehicle.
What is the difference between an interior and exterior mirror?
An interior rear-view mirror normally provides a view through the rear window, while exterior side mirrors provide views along the sides and towards the rear of the vehicle.
When should you check your mirrors?
Check your mirrors regularly and particularly before changing speed or direction, changing lane, overtaking, merging, turning or stopping.
Should you adjust your mirrors before driving?
Yes. Mirrors should be adjusted from the normal driving position before setting off so that they provide the intended view of traffic behind and beside the vehicle.
Do mirrors eliminate blind spots?
No. Even correctly adjusted mirrors can leave areas that are not visible to the driver. These are commonly called blind spots.
Should you check your blind spot before changing lane?
Yes. Where necessary, use a brief direct observation in addition to the mirrors before moving sideways so that a cyclist, motorcycle or other vehicle hidden from the mirrors is not overlooked.
Can a damaged mirror affect road safety?
Yes. A cracked, loose, missing or badly adjusted mirror can reduce the driver's view of surrounding traffic and should be repaired or replaced when necessary.
Can cameras replace conventional mirrors?
Some vehicles use approved camera-based indirect-vision systems instead of or in addition to conventional mirrors. Whether such a system is legally permitted depends on the vehicle's approval and local technical requirements.
Why should you check mirrors before opening a vehicle door?
Checking the mirrors can help detect cyclists, motorcyclists and other approaching road users before a door is opened into their path.
Do motorcycles also need mirrors?
Yes, according to the applicable vehicle requirements. Motorcycles normally have one or more rear-view mirrors so that the rider can observe traffic behind without turning around for extended periods.
69. Fuel
Fuel is a source of energy used to power a vehicle's engine. Common vehicle fuels include petrol, diesel, LPG, CNG and alternative fuels. Electric vehicles use electricity rather than conventional liquid or gaseous fuel.
Drivers should always use a fuel that is compatible with their vehicle. Using the wrong fuel can damage the engine or fuel system, while economical driving and proper vehicle maintenance can reduce fuel consumption.
Wikimedia.org • Santeri Viinamäki • CC BY-SA
Which fuels are commonly used in road vehicles?
Common fuels include petrol, diesel, LPG and CNG. Some vehicles can also use biofuels or other alternative fuels, while electric vehicles obtain their energy from a battery rather than conventional fuel.
How do I know which fuel my vehicle needs?
Check the vehicle manufacturer's instructions and the fuel information shown near the filler opening or on the vehicle. Fuel pumps are normally labelled to help drivers identify compatible fuels.
How can a driver reduce fuel consumption?
Smooth acceleration, anticipating traffic, maintaining an appropriate speed, correct tyre pressure, avoiding unnecessary loads and keeping the vehicle properly maintained can help reduce fuel consumption.
70. Fuel gauge
A fuel gauge is an instrument on a vehicle's dashboard that indicates approximately how much fuel remains in the fuel tank. It usually displays a scale from empty to full and may also include a low-fuel warning light.
The reading is an estimate and can change slightly when the vehicle is on a slope, accelerating, braking or cornering. Drivers should refuel before the tank becomes completely empty.
Wikimedia.org • Santeri Viinamäki • CC BY-SA
What does a fuel gauge show?
A fuel gauge shows the approximate amount of fuel remaining in the vehicle's tank. Most gauges use a scale between empty and full.
What does the low-fuel warning light mean?
The low-fuel warning light indicates that the amount of fuel remaining has reached a low level. The driver should refuel soon rather than relying on the remaining reserve.
Is a fuel gauge completely accurate?
No. A fuel gauge provides an approximate reading. The indicated level can vary because of vehicle movement, road gradient, tank shape and the design of the fuel-level sensor.
71. Petrol
Petrol, also called gasoline, is a liquid fuel commonly used in spark-ignition engines. It is produced mainly from petroleum and may contain renewable components such as ethanol.
Different grades of petrol are identified by their octane rating and ethanol content. Drivers should always use a fuel that meets the specifications recommended by the vehicle manufacturer.
Wikimedia.org • WhisperToMe • CC0
What is petrol?
Petrol is a liquid motor fuel used mainly in spark-ignition engines. It is called petrol in many countries and may contain ethanol or other renewable components.
What does the octane rating of petrol mean?
The octane rating indicates the fuel's resistance to uncontrolled combustion or engine knocking. Vehicles should use petrol with at least the octane rating specified by the manufacturer.
What is the difference between E5 and E10 petrol?
E5 and E10 indicate the permitted ethanol content of petrol. E5 contains up to 5% ethanol by volume, while E10 contains up to 10%. Drivers should check whether their vehicle is compatible with the selected fuel.
72. Diesel
Diesel is a liquid fuel used in compression-ignition engines. Unlike petrol engines, diesel engines ignite the fuel through the heat produced by compressing air rather than by using spark plugs.
Diesel fuels can contain renewable components such as biodiesel. Drivers should always use a diesel grade that is approved by the vehicle manufacturer, as using an incompatible fuel can damage the engine or fuel system.
Wikimedia.org • Okq8 se • CC BY-SA
What is diesel fuel?
Diesel is a liquid motor fuel designed primarily for compression-ignition engines. These engines compress air until it becomes hot enough to ignite the injected fuel.
What do labels such as B7 and B10 mean?
The letter B identifies diesel containing biodiesel components. The number indicates the maximum percentage of biodiesel in the fuel, so B7 may contain up to 7% and B10 up to 10% biodiesel.
Can every diesel vehicle use every type of diesel?
No. Compatibility depends on the vehicle and engine. Drivers should follow the manufacturer's specifications before using fuels such as B10, higher biodiesel blends or synthetic diesel.
73. Diesel exhaust fluid
Diesel exhaust fluid (DEF) is a liquid used by many modern diesel vehicles with selective catalytic reduction (SCR) systems to reduce harmful nitrogen oxide (NOx) emissions. In Europe it is commonly known by the trade name AdBlue.
DEF is not diesel fuel and is stored in a separate tank. It is a solution containing high-purity urea and water that is injected into the exhaust system, where it helps convert nitrogen oxides into less harmful substances.
Wikimedia.org • Lenborje • CC BY-SA
What is diesel exhaust fluid used for?
Diesel exhaust fluid is used in vehicles equipped with an SCR system. It is injected into the exhaust gases to help reduce nitrogen oxide emissions produced by the diesel engine.
Is diesel exhaust fluid the same as diesel fuel?
No. Diesel exhaust fluid is not a fuel and must never be poured into the diesel tank. Vehicles that use it have a separate DEF tank, usually identified by a dedicated filler cap.
What should you do when the DEF warning appears?
Refill the DEF tank with fluid that meets the specification required by the vehicle manufacturer. Do not ignore the warning, because some vehicles can restrict operation or prevent restarting if the DEF supply becomes empty.
74. Car insurance
Car insurance is financial protection for risks associated with owning or using a motor vehicle. Depending on the policy, it can cover liability for injury or damage caused to other people, as well as damage to, theft of or other losses involving the insured vehicle.
The minimum insurance required by law varies between countries. Drivers can often purchase additional cover beyond the compulsory minimum, such as collision, comprehensive, theft, fire or roadside-assistance protection.
Wikimedia.org • Charles Edward Miller • CC BY-SA
What does car insurance cover?
Coverage depends on the policy. Liability insurance generally covers injury or damage caused to other people, while optional forms of insurance may also cover damage to the insured vehicle, theft, fire or other risks.
Is car insurance compulsory?
Many countries require at least a minimum level of motor liability insurance before a vehicle may be used on public roads. The exact requirements and exemptions depend on national law.
What is the difference between liability and comprehensive insurance?
Liability insurance primarily covers damage or injury for which the insured driver is legally responsible toward others. Comprehensive or similar optional cover can also protect the insured vehicle against risks such as theft, fire, vandalism or accidental damage, depending on the policy.
75. First aid kit
A first aid kit is a collection of medical supplies intended for providing immediate basic care after an injury or accident. A vehicle first aid kit commonly contains items such as sterile dressings, bandages, adhesive plasters and other basic wound-care materials.
Some countries require certain vehicles to carry a first aid kit, while in others it is only recommended. The kit should be stored where it can be reached when needed, and its contents should be checked regularly so that required items remain complete and usable.
Wikimedia.org • Red Cross • CC0
Why should a first aid kit be carried in a vehicle?
A first aid kit provides basic materials that can be used to treat injuries or control bleeding while waiting for professional medical assistance.
Is a first aid kit compulsory in every country?
No. Requirements vary between countries and vehicle types. Some countries require motorists to carry an approved first aid kit, while others only recommend having one.
Should a vehicle first aid kit be checked regularly?
Yes. Its contents should remain complete, clean and usable. Used items should be replaced, and products with expiry dates should be checked periodically.

Traffic rules
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