Traffic signsChina

An introduction to the traffic rules and road signs of China. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.


201. Jack

A jack is a portable lifting device used to raise part of a vehicle off the ground, commonly when changing a wheel. Vehicle jacks can be mechanical, hydraulic or electrically operated.

A jack should only be used at the lifting points specified by the vehicle manufacturer and on a firm, stable surface. The parking brake should be applied and the vehicle secured against movement before lifting.

Jack
Changing a tyre of a Citroën Xsara with a jack to lift the vehicle.
Wikimedia.org • Santeri Viinamäki • CC BY-SA

202. Vehicle inspection

A vehicle inspection is an official check to determine whether a vehicle is safe, roadworthy and compliant with applicable technical and environmental requirements. Depending on the country and type of vehicle, inspections may check the brakes, tyres, steering, suspension, lights, emissions, identification and other safety-related components. Inspection rules and intervals vary between countries: some vehicles require regular periodic inspections, while others may also need an inspection after major modifications, an accident, importation or a change of ownership.

Vehicle inspection
Roller brake test at a vehicle inspection station.
Wikimedia.org • Roman Zázvorka • CC BY-SA
What is a vehicle inspection?

A vehicle inspection is an official examination of a vehicle to check whether it meets applicable safety, technical and environmental requirements.

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness tests, inspection items and centres; national example

🔗 europa.eu • Your Europe, registration and roadworthiness documents; EU example

🔗 gov.uk • Great Britain Highway Code, Annex 6, safety-critical maintenance; national guidance example

What is checked during a vehicle inspection?

The inspection may include the brakes, tyres, steering, suspension, lights, vehicle identification and emissions. The exact inspection points depend on the country, vehicle type and type of inspection.

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness tests, inspection items and centres; national example

🔗 europa.eu • Your Europe, registration and roadworthiness documents; EU example

🔗 gov.uk • Great Britain Highway Code, Annex 6, safety-critical maintenance; national guidance example

How often does a vehicle need to be inspected?

The inspection interval depends on the country and type of vehicle. Some countries require annual inspections, while others use longer intervals based on the vehicle's age, use or condition.

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness tests, inspection items and centres; national example

🔗 europa.eu • Your Europe, registration and roadworthiness documents; EU example

🔗 gov.uk • Great Britain Highway Code, Annex 6, safety-critical maintenance; national guidance example

203. Key

A key is a device used to unlock a vehicle and authorise its operation. Traditional vehicle keys use a mechanical blade, while modern vehicles commonly use electronic transponders, remote-control key fobs or keyless systems that communicate electronically with the vehicle.

Many modern keys work together with an immobiliser that prevents the engine or propulsion system from being activated unless an authorised key is detected. Replacement or duplicate keys may therefore need to be electronically programmed to the vehicle.

Key
Car keys of a Porsche, Ferrari and BMW.
Wikimedia.org • chen chin • CC BY
What does a modern car key do?

A modern car key can unlock and lock the vehicle and authorise the engine or electric propulsion system to start. It may use a mechanical blade, electronic transponder, remote-control functions or a keyless system.

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 1.2–1.16, keys, cards and replacement; model-specific example

What should you do if you lose a vehicle key?

Use a spare key if available and arrange a replacement through an appropriate dealer, locksmith or vehicle specialist. Modern replacement keys often need to be programmed to the vehicle's electronic security system.

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 1.2–1.16, keys, cards and replacement; model-specific example

204. Dashboard

The dashboard is the area in front of the driver that displays important information about the vehicle and provides access to controls and warning indicators. It commonly includes the speedometer, fuel or battery level, warning lights, indicators and information about the engine, brakes and safety systems. Modern vehicles may use a digital instrument display instead of traditional gauges. Drivers should understand the main dashboard symbols and respond appropriately when a warning light appears.

What information is shown on the dashboard?

A dashboard may show the speed, fuel or battery level, engine information, warning lights, turn indicators and safety-system status. The exact display depends on the vehicle.

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 1.72–1.98, warning lamps, displays and instruments; model-specific example

What do dashboard warning light colours mean?

Colour is a clue, not a complete diagnosis. Red or amber can indicate a warning or operating state, while green or blue commonly identifies an active function. Read the exact symbol and vehicle instructions before deciding what action is safe.

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 1.72–1.98, warning lamps, displays and instruments; model-specific example

205. Windscreen wiper

A windscreen wiper is a device that removes rain, snow, dirt and other moisture from a vehicle’s windscreen to maintain a clear view of the road. Most vehicles use electrically powered wipers with replaceable rubber blades and several operating speeds, often together with a windscreen washer system. Drivers should replace worn or damaged wiper blades when they leave streaks, skip across the glass or no longer clean the windscreen effectively.

Parallelogram windscreen-wiper mechanism on a Porsche 904.
Wikimedia.org • Lothar Spurzem • CC BY-SA
What is a windscreen wiper?

A windscreen wiper is a device that moves across the windscreen to remove rain, snow, dirt and moisture so the driver can maintain a clear view of the road.

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 1.107–1.114 and 5.48–5.49, wiping/blades; model-specific example

🔗 gov.uk • Great Britain Highway Code, Annex 6, clear windows and wipers; national guidance example

Why are windscreen wipers important?

Windscreen wipers help maintain clear visibility in bad weather and when the windscreen becomes dirty. Poor visibility can make it harder to detect traffic, pedestrians, signs and hazards.

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 1.107–1.114 and 5.48–5.49, wiping/blades; model-specific example

🔗 gov.uk • Great Britain Highway Code, Annex 6, clear windows and wipers; national guidance example

When should windscreen wiper blades be replaced?

Wiper blades should be replaced when they are worn, cracked, damaged or no longer clean the windscreen effectively. Common signs include streaking, skipping, squeaking or areas of the windscreen remaining wet.

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 1.107–1.114 and 5.48–5.49, wiping/blades; model-specific example

🔗 gov.uk • Great Britain Highway Code, Annex 6, clear windows and wipers; national guidance example

206. Doors

Doors provide access to the vehicle and help protect occupants while the vehicle is moving. They must open and close correctly, remain securely closed during driving and have functioning hinges, catches and locking mechanisms. Damaged or loose doors can create a serious safety risk, especially if they can open unexpectedly or cannot be closed properly.

Open car door from a Honda Civic Type R.
Wikimedia.org • Guyon • CC BY
Why are vehicle doors important for safety?

Vehicle doors help protect occupants and keep them safely inside the vehicle. They should close securely and must not open unexpectedly while driving.

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness items, body/structure, glazing and door retention; national example

🔗 gov.uk • Great Britain Highway Code, Annex 6, safe condition and clear windows; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, body closures, locks and wiping; model-specific example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Article 24, opening doors; international framework subject to national law

What parts of a vehicle door should work correctly?

The door, hinges, catches, locking mechanism and surrounding structure should be secure and in good condition so the door can open and close properly.

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness items, body/structure, glazing and door retention; national example

🔗 gov.uk • Great Britain Highway Code, Annex 6, safe condition and clear windows; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, body closures, locks and wiping; model-specific example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Article 24, opening doors; international framework subject to national law

Can you drive with a door that does not close properly?

A door that cannot remain securely closed can be dangerous and may make the vehicle unroadworthy. It should be repaired before the vehicle is used.

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness items, body/structure, glazing and door retention; national example

🔗 gov.uk • Great Britain Highway Code, Annex 6, safe condition and clear windows; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, body closures, locks and wiping; model-specific example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Article 24, opening doors; international framework subject to national law

207. Glovebox

A glovebox, also called a glove compartment, is a storage compartment built into the dashboard in front of the passenger seat. It is commonly used to keep vehicle documents, the owner’s manual and other small items within easy reach. The glovebox should be kept closed while driving so that it does not obstruct passengers or allow loose objects to fall into the vehicle. Avoid storing valuables or items that can be damaged by the high temperatures that may develop inside a parked car.

An open glovebox with owner's manual and documents.
Wikimedia.org • Q4RadioGuy • CC BY
Should the glovebox be closed while driving?

Yes. Toyota’s owner-manual guidance says to keep the glovebox closed: during sudden braking or swerving, an occupant could be struck by the open compartment or its contents. Follow the instructions for your vehicle.

🔗 assets.sia.toyota.com • Toyota owner manual OM21046U, glove box safety

Where should I check how to open or lock my glovebox?

Use your vehicle’s owner’s manual. Latches and locks differ. The retrieved Toyota manual, for example, describes a lever to open the glovebox and a key or mechanical key to lock it, depending on the vehicle’s key system.

🔗 assets.sia.toyota.com • Toyota owner manual OM21046U, glove box safety

208. Visibility

Visibility is the ability of a driver to see the road, other road users and potential hazards clearly, while also making the vehicle visible to others. Visibility can be reduced by darkness, fog, rain, snow, dirty or misted windows, glare and objects that obstruct the driver’s view. Drivers should keep windows, mirrors and lights clean, remove anything that blocks their field of vision and use the appropriate vehicle lights when visibility is reduced.

Visibility
Experimental long-exposure photograph of moving car traffic.
Wikimedia.org • Rick Doble • CC BY-SA
What does visibility mean when driving?

Visibility describes how clearly a driver can see the road, traffic and hazards and how easily other road users can see the vehicle.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

What can reduce visibility while driving?

Visibility can be reduced by darkness, fog, rain, snow, glare, dirty or misted windows and objects that obstruct the driver’s view.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

What should you do when visibility is poor?

Reduce your speed, increase your following distance and use the appropriate lights. Make sure you can see far enough ahead to react safely to traffic and obstacles.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

209. Rain

Rain can reduce visibility, tyre grip and vehicle control while increasing stopping distances. Water on the road can also cause aquaplaning, where the tyres lose contact with the road surface. Drivers should reduce speed, increase their following distance, avoid sudden steering or braking and use the appropriate lights when visibility is reduced. Extra care is needed during heavy rain and when water collects in wheel tracks or on poorly drained roads.

How does rain affect driving?

Rain can reduce visibility and tyre grip, increase stopping distances and make it more difficult to control the vehicle safely.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

How should you drive in heavy rain?

Reduce speed, increase your following distance and use smooth steering, acceleration and braking. Use the appropriate lights and be prepared for reduced visibility and standing water.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

Why should you increase the following distance in rain?

Wet roads can increase the distance needed to stop. A larger following distance gives you more time and space to react safely.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

210. Fog

Fog can greatly reduce visibility and make it difficult to judge speed, distance and the position of other road users. Drivers should reduce speed, increase their following distance and use the appropriate lights without dazzling others. Avoid relying only on the vehicle ahead as a guide, and be prepared for sudden changes in visibility. When fog is very dense, stopping in a safe place may be the best option.

Why is fog dangerous when driving?

Fog can greatly reduce visibility and make it harder to judge speed, distance and the movement of other road users.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

How should you drive in fog?

Reduce speed, increase your following distance and use the appropriate lights. Drive so that you can stop safely within the distance you can clearly see.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

Should you use high-beam headlights in fog?

Usually not. High beams can reflect from the water droplets in fog and make visibility worse. Use the lighting permitted and recommended under local traffic rules.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

211. Hail

Hail can reduce visibility, make the road slippery and create sudden hazardous driving conditions. Hailstones may accumulate on the road and reduce tyre grip in a similar way to ice or loose material, while larger hailstones can also damage windscreens and vehicle bodywork. Drivers should reduce speed, increase their following distance, avoid sudden steering or braking and, when conditions become severe, consider stopping at a safe place until the hailstorm passes.

Why is hail dangerous when driving?

Hail can reduce visibility and tyre grip, make the road slippery and distract drivers because of the sudden noise and impact of hailstones.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

How should you drive during a hailstorm?

Reduce speed, increase your following distance and use smooth steering and braking. If the hail becomes severe or visibility is very poor, consider stopping at a safe place away from moving traffic.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

Is it safer to stop during severe hail?

If visibility or road conditions become too dangerous, it may be safer to stop at a suitable place away from moving traffic and continue when conditions improve.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

212. Sunlight

Sunlight can reduce visibility when the sun is low in the sky or when bright light reflects from wet roads, snow, buildings or other vehicles. Sun glare can make traffic lights, signs, pedestrians and other road users difficult to see. Drivers should reduce speed when necessary, keep the windscreen clean, use the sun visor or suitable sunglasses and leave extra space to react to hazards that may be temporarily hidden by glare.

Sunlight
Sunrise over a street in Cabo San Lucas. (Baja California Sur, Mexico)
Wikimedia.org • Frank Contreras Cardenas • CC BY-SA
Why can sunlight be dangerous when driving?

Bright or low sunlight can cause glare and temporarily reduce visibility, making traffic lights, signs, pedestrians and other road users more difficult to see.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

When is sun glare most likely to cause problems?

Glare is often strongest when the sun is low in the sky, particularly around sunrise and sunset, and when sunlight reflects from wet roads, snow, glass or other bright surfaces.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

What should you do when sunlight makes it difficult to see?

Reduce speed and increase your following distance so you have more time to react. Use the sun visor where helpful and avoid continuing at a speed that is too high for the available visibility.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

213. Sunglasses

Sunglasses can reduce glare and improve visual comfort when driving in bright sunlight, especially when the sun is low or reflects from wet roads, snow or other surfaces. Drivers should choose lenses that allow traffic lights, signs and other road users to remain clearly visible. Very dark lenses can reduce visibility in tunnels, at night or in changing light conditions, so sunglasses should be removed when they make it harder to see the road safely.

Sunglasses
Canadian musician Daniel Wesley wearing sunglasses.
Wikimedia.org • Vancouver 125 • CC BY
Can sunglasses help when driving?

Yes. Sunglasses can reduce glare and improve visual comfort in bright sunlight, making it easier to see the road and surrounding traffic.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

When are sunglasses most useful while driving?

They are particularly useful when the sun is low in the sky or when bright light reflects from wet roads, snow, glass or other surfaces.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

Are very dark sunglasses suitable for driving?

Very dark lenses can reduce the amount of light reaching the eyes and may make it difficult to see in tunnels, shade, poor weather or at night. Sunglasses should not interfere with safe visibility.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

214. Salt

Salt is commonly used for deicing and anti-icing roads in winter. It lowers the freezing point of water, helping to prevent ice from forming or to melt existing snow and ice. Road authorities may spread dry salt, wet salt or brine before or during freezing conditions. Salt improves road safety, but drivers should still reduce speed and adapt to slippery conditions because treated roads can remain hazardous, especially during heavy snowfall, freezing rain or very low temperatures.

Why is salt used on roads in winter?

Salt helps lower the freezing point of water, making it harder for ice to form and helping existing snow or ice melt.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

What is the difference between deicing and anti-icing?

Anti-icing means treating the road before ice forms, while deicing means applying salt or another treatment after snow or ice is already present.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

Does salt make an icy road completely safe?

No. Salt can improve grip by reducing snow and ice, but treated roads can still be slippery. Drivers should continue to reduce speed and increase their following distance.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

215. Air conditioning

Air conditioning helps control the temperature and humidity inside a vehicle and can improve comfort and visibility. In hot weather it cools the passenger compartment, while in damp conditions it can help remove moisture from the air and clear mist from the windows more quickly. Drivers should use the system in a way that keeps the interior comfortable without creating large temperature differences, and the system should be maintained so that it continues to work effectively.

Air conditioning button in a car.
Wikimedia.org • Mattes • CC0
What does air conditioning do in a car?

Air conditioning cools and dehumidifies the air inside the vehicle, helping improve comfort and reduce moisture on the windows.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

Can air conditioning help demist the windscreen?

Yes. Because air conditioning removes moisture from the air, it can help clear condensation from the windscreen and windows more quickly.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

Should air conditioning be used in winter?

Air conditioning can help demist windows in winter when the vehicle system permits it. Use the handbook’s demisting or automatic-climate settings. Operation can depend on temperature and system conditions, so do not assume the compressor will always run.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

216. Hydroplaning

Hydroplaning, also called aquaplaning, occurs when a layer of water builds up between a vehicle’s tyres and the road surface, causing the tyres to lose contact with the road. Steering, braking and acceleration can then become much less effective. The risk increases with speed, standing water and worn tyres. Drivers should reduce speed in heavy rain, avoid sudden steering or braking and make sure their tyres are in good condition with sufficient tread depth.

What is hydroplaning?

Hydroplaning occurs when water separates the tyres from the road surface, reducing or temporarily removing normal tyre grip.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

What should you do if your vehicle starts hydroplaning?

Remain calm, ease off the accelerator and avoid sudden braking or steering. Keep the steering movements smooth and controlled until the tyres regain contact with the road.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

At what speed does hydroplaning occur?

There is no single speed at which hydroplaning always begins. The risk depends on speed, water depth, tyre condition, tyre pressure and the road surface.

🔗 gov.uk • Great Britain Highway Code, Rules 226–237, adverse weather; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 124–126, visibility and following distance; national guidance example

🔗 cdn.group.renault.com • Dacia Sandero, Stepway and Jogger owner’s manual, pages 3.5–3.18, demisting and climate control; model-specific example

🔗 weather.metoffice.gov.uk • Met Office, freezing rain formation

🔗 weather.metoffice.gov.uk • Met Office, frost, transparent glaze and black ice

🔗 ops.fhwa.dot.gov • US FHWA, anti-icing chemistry and treatment timing

217. Distraction

Distraction is anything that takes a driver’s attention away from safely controlling the vehicle and observing the road. Common distractions include mobile phones, navigation systems, passengers, eating, adjusting controls or looking away from traffic. Distraction can be visual, manual or mental and may significantly increase reaction time. Drivers should keep their attention on the road, prepare navigation and other settings before moving and avoid activities that interfere with safe driving.

Distraction
Distracted driving kills, keep your eyes and mind on the road.
Wikimedia.org • Melissa Wenger • CC0
What is distracted driving?

Distracted driving occurs when a driver's visual, manual or mental attention is diverted from driving and the surrounding traffic.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

What are common driving distractions?

Common distractions include mobile phones, navigation systems, passengers, eating, adjusting vehicle controls and looking away from the road.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

Why is using a phone while driving dangerous?

Using a phone can combine visual, manual and mental distraction, reducing the driver's ability to notice hazards and react quickly.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

218. Emotions

Emotions can influence attention, judgement and driving behaviour. Anger, stress, fear, sadness or excitement may cause a driver to become distracted, impatient or more likely to take risks. Strong emotions can also affect concentration and reaction time. Drivers should recognise when their emotional state is interfering with safe driving and, if necessary, slow down, take a break or stop in a safe place until they feel able to continue calmly and attentively.

Emotions
Driver showing frustration while stuck in traffic congestion.
Wikimedia.org • Raysonho • CC0
Can emotions affect driving?

Yes. Strong emotions can affect attention, judgement, reaction time and decision-making, which can make safe driving more difficult.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

Why is anger dangerous when driving?

Anger can lead to impatience, aggressive manoeuvres, speeding or reduced attention. Drivers should avoid reacting emotionally to other road users.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

What should you do if you are too emotional to drive safely?

If your emotional state is affecting concentration or judgement, stop or delay the journey when possible and continue only when you feel able to drive safely.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

219. Road rage

Road rage is aggressive, hostile or intimidating behaviour by a road user toward others in traffic. It can include excessive honking, tailgating, shouting, threatening gestures, blocking another vehicle or making deliberately aggressive manoeuvres. Anger can reduce judgement and increase risk-taking, turning a minor traffic conflict into a dangerous situation. Drivers should avoid confrontation, remain calm, keep a safe distance and never retaliate against aggressive behaviour.

Road rage
Photo illustration of a driver demonstrating road rage. (Camp Pendleton, California, United States)
Wikimedia.org • DaleHulm • CC BY-SA
What is road rage?

Road rage is aggressive, hostile or intimidating behaviour directed at other road users, often caused by anger or frustration in traffic.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

What should you do if another driver becomes aggressive?

Stay calm, avoid confrontation, maintain a safe distance and do not retaliate or copy the other driver's behaviour. If necessary, move away from the situation when it is safe to do so.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

Should you stop to confront an aggressive driver?

Do not stop simply to confront an aggressive driver. Avoid retaliation, keep a safe distance and move away to a safe place when possible. If you feel threatened, contact the police as soon as you can do so safely.

🔗 gov.uk • Great Britain Highway Code, Rule 97, journey preparation and controls; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 144–150, distraction and aggressive behaviour; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 159–169, observation; national guidance example

🔗 wetten.overheid.nl • Vienna Convention on Road Traffic, Articles 7–8 and 13; international framework subject to national law

220. Health

Health can affect a person’s ability to drive safely. Illness, injury, poor vision, reduced mobility, fatigue, certain medical conditions and some medicines can interfere with concentration, reaction time, judgement or vehicle control. Drivers should recognise when their physical or mental condition may make driving unsafe and should seek medical advice when necessary. In some countries, specific health conditions must be reported and may require a medical examination or restrictions on the driving licence.

Health
Older person seated behind the wheel of a car.
Wikimedia.org • Shixart1985 • CC BY
How can health affect driving?

Health problems can affect vision, concentration, reaction time, judgement, coordination and vehicle control, making safe driving more difficult.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

🔗 fda.gov • US FDA, Some Medicines and Driving Don’t Mix, OTC/prescription effects and antihistamines

Should you drive when you are ill?

Not if the illness makes it difficult to concentrate, react quickly or control the vehicle safely. Drivers should delay the journey or seek medical advice when necessary.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

🔗 fda.gov • US FDA, Some Medicines and Driving Don’t Mix, OTC/prescription effects and antihistamines

Can medication affect driving?

Yes. Some medicines can cause drowsiness, dizziness, blurred vision or slower reactions. Always follow the instructions provided with the medicine and advice from a healthcare professional.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

🔗 fda.gov • US FDA, Some Medicines and Driving Don’t Mix, OTC/prescription effects and antihistamines

221. Epilepsy

Epilepsy is a neurological condition that can cause recurrent seizures, which may involve changes in awareness, movement, sensation or consciousness. Because a seizure can temporarily prevent a person from controlling a vehicle safely, epilepsy can affect driving fitness and driving-licence requirements. The rules vary between countries and usually depend on factors such as the type of seizure, how long the person has been seizure-free, treatment and medical assessment. Anyone who experiences a seizure should follow the applicable driving rules and seek medical advice before driving again.

Epilepsy
Anatomical diagram showing the principal fissures and lobes of the cerebrum.
Wikimedia.org • Henry Vandyke Carter • CC0
Can epilepsy affect your ability to drive?

Yes. A seizure can cause loss of awareness, consciousness or vehicle control, so epilepsy can affect whether a person is medically fit to drive.

🔗 uhb.nhs.uk • University Hospitals Birmingham NHS, seizures and driving, current DVLA role

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, epilepsy and medical fitness; national example

🔗 gov.uk • GOV.UK, health conditions and driving; GB example

Can a person with epilepsy have a driving licence?

In many countries, yes, provided specific medical and seizure-free requirements are met. The exact conditions depend on the country, licence category and individual medical situation.

🔗 uhb.nhs.uk • University Hospitals Birmingham NHS, seizures and driving, current DVLA role

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, epilepsy and medical fitness; national example

🔗 gov.uk • GOV.UK, health conditions and driving; GB example

What should you do after having a seizure?

Stop driving after a seizure or blackout and seek medical advice. Check the licensing authority’s requirements before returning to driving; the permitted return depends on the jurisdiction, licence category and circumstances. In Great Britain, DVLA decides the licensing restriction, not the doctor alone.

🔗 uhb.nhs.uk • University Hospitals Birmingham NHS, seizures and driving, current DVLA role

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, epilepsy and medical fitness; national example

🔗 gov.uk • GOV.UK, health conditions and driving; GB example

222. Night blindness

Night blindness, also called nyctalopia, is reduced ability to see in darkness or low-light conditions. It can make it difficult to recognise pedestrians, cyclists, road markings, bends or obstacles at night and during twilight. Night blindness can have different causes, including certain eye conditions, vitamin deficiencies or problems with the retina. Drivers who have difficulty seeing in low light should avoid driving in conditions where their vision is inadequate and seek professional eye care.

Night blindness
View through a windscreen while driving in heavy monsoon rain.
Wikimedia.org • Alex Proimos • CC BY
What is night blindness?

Night blindness is difficulty seeing in darkness or low-light conditions, even when daytime vision may be relatively good.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

Why is night blindness dangerous when driving?

It can make pedestrians, cyclists, road edges, signs and obstacles harder to detect, reducing the time available to react safely.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

Is night blindness the same as being completely blind at night?

No. Night blindness usually means reduced vision in dim conditions, not a complete loss of sight.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

223. Visual impairment

Visual impairment is a reduction in vision that can affect a person’s ability to see clearly, judge distances, detect movement or recognise hazards. It can involve reduced visual acuity, a restricted field of vision, poor contrast sensitivity, double vision or difficulty seeing in low light. Because safe driving depends heavily on vision, drivers must meet the minimum eyesight standards required in their country and use glasses, contact lenses or other approved visual aids when necessary.

Visual impairment
Roadside scene photographed during Operation Shocktober.
Wikimedia.org • Anonymous9000 • CC BY
How can visual impairment affect driving?

Visual impairment can make it harder to recognise signs, detect pedestrians and vehicles, judge distance and speed or see hazards in time.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

What aspects of vision are important for driving?

Important functions include visual acuity, the field of vision, contrast sensitivity and the ability to see in low or changing light. Medical standards can also address double vision and other impairments. The required assessment depends on the country and licence category.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

What should you do if your eyesight becomes worse?

If your vision changes significantly or may no longer meet the required standards, seek an eye examination and medical advice before continuing to drive.

🔗 gov.uk • Great Britain Highway Code, Rules 90–96, fitness and impairment; national guidance example

🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example

🔗 wegcode.be • Belgium, Driving Licence Decree of 23 March 1998, Annex 6, medical fitness and visual functions; national example

🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

224. Fatigue

Fatigue reduces concentration, reaction time, judgement and the ability to stay alert while driving. It can develop after long periods behind the wheel, insufficient sleep, illness, irregular working hours or driving at times when the body normally expects rest. Warning signs include frequent yawning, heavy eyelids, difficulty keeping a steady speed or lane position and forgetting parts of the journey. Drivers should stop and rest as soon as they notice signs of tiredness and should not rely on caffeine, fresh air or loud music as substitutes for sleep.

Why is fatigue dangerous when driving?

Fatigue can slow reaction time, reduce concentration and impair judgement, increasing the risk of missing hazards or losing control of the vehicle.

🔗 gov.uk • Great Britain Highway Code, Rule 91, tiredness and safe rest stops; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rule 126, reaction/stopping distance; national guidance example

🔗 nhtsa.gov • US NHTSA, drowsy driving, tips to drive alert

What are common signs of driver fatigue?

Feeling sleepy while driving is a warning to stop and rest safely. NHTSA also identifies crossing roadway lines or hitting a rumble strip as signs of drowsiness. Do not wait for a lane departure before taking action; Great Britain’s Highway Code advises against starting a journey when tired.

🔗 gov.uk • Great Britain Highway Code, Rule 91, tiredness and safe rest stops; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rule 126, reaction/stopping distance; national guidance example

🔗 nhtsa.gov • US NHTSA, drowsy driving, tips to drive alert

What should you do if you feel tired while driving?

Stop at a safe place and rest before continuing. If possible, take a short nap or end the journey until you are sufficiently rested.

🔗 gov.uk • Great Britain Highway Code, Rule 91, tiredness and safe rest stops; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rule 126, reaction/stopping distance; national guidance example

🔗 nhtsa.gov • US NHTSA, drowsy driving, tips to drive alert

225. Defects

Defects are faults, damage or wear that can affect a vehicle’s safety, roadworthiness or compliance with technical requirements. Defects may involve tyres, brakes, lights, steering, suspension, windows, bodywork, electrical systems or other components. Some are minor and should be repaired as soon as possible, while serious or dangerous defects can make the vehicle unsafe to drive. Drivers should regularly check their vehicle and repair problems before they become a safety risk.

Defects
Engine-management warning light illuminated on a Volkswagen Bora dashboard.
Wikimedia.org • Wikiuser100000 • CC BY-SA
What is a vehicle defect?

A vehicle defect is a fault, damage or excessive wear that affects the condition, operation, safety or legal compliance of a vehicle.

🔗 gov.uk • Great Britain Highway Code, Annex 6, maintenance defects; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 274–279, safe breakdown response; national guidance example

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness inspection items; national example

What are common vehicle defects?

Common defects include worn tyres, faulty lights, damaged brakes, steering problems, cracked windows, suspension faults and damaged electrical components.

🔗 gov.uk • Great Britain Highway Code, Annex 6, maintenance defects; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 274–279, safe breakdown response; national guidance example

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness inspection items; national example

What should you do if you discover a vehicle defect?

Assess whether the vehicle can still be driven safely and have the defect repaired as soon as possible. Do not continue driving if the defect creates a serious safety risk.

🔗 gov.uk • Great Britain Highway Code, Annex 6, maintenance defects; national guidance example

🔗 gov.uk • Great Britain Highway Code, Rules 274–279, safe breakdown response; national guidance example

🔗 wegcode.be • Belgium, Technical Requirements Decree of 15 March 1968, roadworthiness inspection items; national example