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QuizTraffic rulesSweden

This interesting quiz helps you test your knowledge in a clear and visual way. With easy multiple-choice questions, you can quickly build confidence and learn new facts while keeping it simple, interactive, and fun.

Traffic signs
Traffic rules
Sweden
True/false 17 Sweden 31 Car controls 109 Dashboard lights 40 Priority rules 9 Pedestrians 19 Cyclists 20 Driving licence 40 Show all 638
What does this dashboard symbol indicate?

301. What does this dashboard symbol indicate?

Low tyre pressure.
Power-steering warning.
Engine-management warning.
✓ Electronic stability control.

This symbol relates to the electronic stability control (ESC) system. It may flash when the system is actively helping to maintain stability. If it remains illuminated, the system may be switched off or have a fault.

Electronic stability control symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should you normally brake on a motorcycle?

302. How should you normally brake on a motorcycle?

Alternate between the front and rear brakes.
✓ Use both brakes smoothly and progressively.
Use only the rear brake.
Apply both brakes as suddenly as possible.

During normal braking, use both the front and rear brakes smoothly and progressively. The front brake normally provides much of the braking force, while the rear brake also helps slow and stabilise the motorcycle. Sudden or poorly balanced braking can reduce stability or cause a wheel to lose grip.

Motorcyclist using the front and rear brakes
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should you normally hold the steering wheel while driving?

303. How should you normally hold the steering wheel while driving?

✓ With both hands in a balanced position.
With both hands together at the bottom.
With one hand resting on the gear lever.
With one hand at the top of the wheel.

Hold the steering wheel with both hands in a balanced position so that you can steer smoothly and react quickly. A position around nine and three o'clock generally provides good control.

Driver holding the steering wheel with both hands
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should the head restraint be adjusted correctly?

304. Why should the head restraint be adjusted correctly?

To make the seat belt tighter.
To support the lower back.
✓ To reduce the risk of neck injury in a collision.
To improve rear visibility.

A correctly adjusted head restraint helps support the head and can reduce the risk of neck injury, especially in a rear-end collision. The top of the restraint should normally be level with the top of the head.

Adjusting a vehicle seat's head restraint
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should cyclists brake on a wet road?

305. How should cyclists brake on a wet road?

✓ Brake earlier and more gradually than usual.
Use only one brake to avoid skidding.
Brake later and more firmly than usual.
Brake sharply once you are close to stopping.

Wet surfaces reduce grip and increase stopping distance. Smooth, early braking helps prevent skidding.

Cyclist braking on a wet road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the vehicle consistently pulls to one side?

306. What should you do if the vehicle consistently pulls to one side?

Increase speed to see if the vehicle straightens.
Reduce pressure in the tyre on the opposite side.
Ignore it if the tyres appear normal.
✓ Check the tyre pressures and have the steering, alignment, and brakes inspected.

Persistent pulling can be caused by incorrect tyre pressure, wheel misalignment, suspension wear, or a braking fault. It should not be ignored.

Vehicle pulling to one side while travelling
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you reduce speed in fog?

307. Why should you reduce speed in fog?

To prevent the windscreen from misting.
✓ Because you have less time to react to hazards you cannot see.
To reduce fuel consumption.
To reduce vehicle emissions.

Fog can hide obstacles, pedestrians, and other vehicles. Lower speed gives you more time to react.

Fog limiting a driver's view ahead
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if traffic ahead is blocking a junction?

308. What should you do if traffic ahead is blocking a junction?

Follow the vehicle ahead into the junction.
Use the horn so traffic ahead moves forward.
✓ Wait until there is enough space to clear the junction.
Enter the junction and wait for traffic to move.

Do not enter a junction if traffic ahead prevents you from clearing it safely. Waiting before the junction helps avoid blocking crossing traffic, pedestrians, cyclists, or other road users.

Queue of traffic blocking a junction
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should an EV charging cable be positioned where pedestrians may pass?

309. How should an EV charging cable be positioned where pedestrians may pass?

Across the shortest possible route, even if people walk there.
✓ So it does not create a trip hazard or obstruct the route.
Around nearby street furniture to keep it under tension.
Loose on the ground so pedestrians can step over it.

An EV charging cable should be positioned so it does not create a trip hazard or unnecessarily obstruct pedestrians. Where a cable must cross a walking route, use an appropriate approved cable-management or protection system and follow local requirements.

Charging cable near a pedestrian route
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you leave extra following distance when towing?

310. Why should you leave extra following distance when towing?

To make the trailer easier to steer.
To prevent the trailer from blocking your view.
✓ Your vehicle combination may take longer to stop.
To keep the trailer from moving side to side.

Towing adds weight and can increase stopping distance. Extra space gives you more time to react and brake smoothly.

Vehicle towing a trailer behind other traffic
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

311. What does this dashboard symbol indicate?

Oil-pressure warning.
Low washer fluid.
✓ Engine-temperature warning.
Charging-system warning.

This symbol indicates that the engine coolant temperature is too high. If it illuminates while driving, stop safely and allow the engine to cool before investigating the cause.

Engine-temperature warning symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should a cyclist react to a pothole?

312. How should a cyclist react to a pothole?

Keep your speed and pass as close as possible.
✓ Check surroundings, reduce speed, and avoid it smoothly.
Focus only on the pothole and not the traffic around you.
Swerve around it as soon as you notice it.

Sudden swerving can place you in the path of traffic. Check your surroundings and change direction gradually.

Cyclist approaching a pothole
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Which selector position prevents drive being transmitted to the wheels?

313. Which selector position prevents drive being transmitted to the wheels?

R (Reverse).
D (Drive).
✓ N (Neutral).
P (Park).

Select N (Neutral) when drive should not be transmitted to the wheels. Unlike Park, Neutral does not lock the transmission to prevent the vehicle from rolling.

Automatic gear selector with P, R, N and D positions
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should cyclists ride when travelling in a group?

314. How should cyclists ride when travelling in a group?

Ride as close together as possible to stay as one group.
Follow the cyclist ahead without checking traffic yourself.
✓ Predictably, with safe gaps and clear communication.
Ride side by side even when traffic cannot pass safely.

Safe spacing and communication help group members respond to braking, turns, obstacles, and changing traffic conditions.

Group of cyclists riding along a road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this vehicle-control symbol indicate?

315. What does this vehicle-control symbol indicate?

✓ Windscreen wiper speed.
Windscreen washer.
Automatic headlights.
Rear window demister.

This symbol relates to the windscreen wipers. The control allows the driver to select an appropriate wiping mode or speed for the amount of rain and visibility conditions.

Windscreen-wiper control for adjusting wiping speed
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before attempting to jump-start a vehicle?

316. What should you do before attempting to jump-start a vehicle?

Connect the leads without checking their polarity.
Ignore battery damage if the terminals look clean.
Start both vehicles before connecting the leads.
✓ Check the owner's manual and make sure the connections are compatible.

Incorrect jump-starting can damage electrical systems, cause sparks, or make a battery explode. Connect the leads in the correct order before starting the vehicles, and follow the manufacturer's procedure exactly.

Preparing to jump-start a vehicle battery
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

317. What does this dashboard symbol indicate?

✓ Direction indicators.
Hazard warning lights.
Main beam.
Sidelights.

This symbol indicates that a direction indicator is operating. The flashing indicator shows the direction in which the driver intends to turn or change position on the road.

Direction-indicator symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What is the minimum licence for a goods vehicle with a 7,500 kg maximum authorised mass?

318. What is the minimum licence for a goods vehicle with a 7,500 kg maximum authorised mass?

Licence BE.
✓ Licence C1.
Licence B.
Licence C.

Category C1 covers motor vehicles, other than categories D1 and D, with a maximum authorised mass above 3,500 kg and not exceeding 7,500 kg.

Goods vehicle with a maximum authorised mass of 7,500 kg
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid resting your foot on the clutch pedal while driving?

319. Why should you avoid resting your foot on the clutch pedal while driving?

✓ It can cause unnecessary clutch wear.
It can lock the steering.
It can increase tyre pressure.
It can apply the parking brake.

Resting your foot on the clutch pedal can apply slight pressure to the clutch mechanism and cause unnecessary wear. Keep your left foot off the clutch when it is not needed.

Foot position near the clutch pedal
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the service brakes fail while driving?

320. What should you do if the service brakes fail while driving?

✓ Reduce speed using other available braking methods and stop safely.
Switch off the engine immediately while moving.
Shift into neutral and let the vehicle coast to a stop.
Apply the parking brake suddenly at full force.

Remain calm, warn other road users, and use other available braking methods to reduce speed. This may include engine braking or a lower gear, and careful use of the parking or emergency brake according to the vehicle's design. Steer toward the safest available stopping area.

Vehicle braking-system failure while driving
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if you see fallen rocks on a mountain road?

321. What should you do if you see fallen rocks on a mountain road?

✓ Slow down and avoid them smoothly when safe.
Stop beside the rocks to inspect the road.
Move toward the centre of the road without slowing down.
Maintain speed and drive over smaller stones.

Loose rocks can damage tyres, affect steering, or block part of the road. Reduce speed and avoid sudden movements. If rocks are actively falling, do not enter or stop in the danger area. Keep a safe distance and, if necessary, wait in a safe place until it is safe to continue.

Fallen rocks on a mountain road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should cyclists do near a large vehicle that may be turning?

322. What should cyclists do near a large vehicle that may be turning?

Pass quickly before the vehicle starts turning.
Assume the driver will wait for you before turning.
✓ Stay back and do not pass on the turning side.
Ride beside it so the driver can see you.

Large vehicles need extra space to turn and may move across a cyclist's path. Remaining behind is usually safer.

Cyclist near a turning large vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do when joining a motorway from an entry lane?

323. What should you do when joining a motorway from an entry lane?

Enter at a low speed and let motorway traffic adjust.
✓ Match your speed, check around you, and merge into a safe gap.
Force your way into the nearest gap.
Stop at the end of the entry lane and wait for a large gap.

Use the entry lane to build a suitable speed, check carefully, signal, and merge only when it is safe.

Vehicle joining a motorway from an entry lane
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should you normally apply the brake pedal for a smooth stop?

324. How should you normally apply the brake pedal for a smooth stop?

Pump the pedal repeatedly.
Press it as hard as possible immediately.
✓ Apply pressure progressively.
Use the parking brake instead.

For normal braking, apply the brake pedal progressively and smoothly. As the vehicle comes to a stop, easing the pressure slightly can help avoid a sudden jerk.

Progressive brake-pedal pressure for a smooth stop
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

325. What does this dashboard symbol indicate?

✓ A door is open.
The parking brake is applied.
The seat belt is not fastened.
The airbag system has a fault.

This symbol indicates that one or more vehicle doors are not fully closed. Check that all doors are securely shut before driving.

Door-open warning symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do with the steering wheel after completing a turn?

326. What should you do with the steering wheel after completing a turn?

Hold it in the turned position.
Turn it quickly in the opposite direction.
✓ Guide it smoothly back towards the straight-ahead position.
Release it completely and let it spin freely.

After completing a turn, guide the steering wheel smoothly back towards the straight-ahead position while maintaining control. Do not allow the wheel to spin freely through your hands.

Guiding the steering wheel back after a turn
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should cyclists do after a collision or hard fall?

327. What should cyclists do after a collision or hard fall?

✓ Check yourself and inspect the bicycle before riding again.
Test the bicycle by riding it before checking for damage.
Check only the parts that were directly involved in the fall.
Continue if you feel fine and the bicycle looks normal.

A fall can damage the brakes, wheels, frame, handlebars, or helmet. Injuries may also not be immediately obvious.

Checking a bicycle after a fall or collision
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you normally do after completing an overtake?

328. What should you normally do after completing an overtake?

Move back immediately in front of the vehicle you passed.
Slow down before returning to the normal lane.
✓ Return to the normal driving lane when it is safe.
Remain in the overtaking lane until another vehicle approaches.

After overtaking, return to the normal driving lane when you have passed the other vehicle by a safe distance. Check your mirrors, signal when appropriate, and avoid moving back too soon.

Vehicle returning to its lane after overtaking
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why is it dangerous to cross between parked cars?

329. Why is it dangerous to cross between parked cars?

✓ Drivers may not see you or expect you to cross.
Pedestrians lose priority when crossing between cars.
Traffic always moves faster beside parked cars.
Parked cars make the crossing distance longer.

Parked vehicles can block the view between pedestrians and drivers. This makes it harder to see approaching traffic and harder for drivers to see you.

Pedestrian crossing between parked cars
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should you position your vehicle beside a fuel pump?

330. How should you position your vehicle beside a fuel pump?

✓ With the fuel-filler side close enough for the hose to reach safely.
With the fuel hose stretched tightly across the vehicle.
At an angle so the rear of the vehicle is closest to the pump.
As close to the pump as possible, even if access is restricted.

Position the vehicle so the fuel filler is close to the pump and the hose can reach without being stretched tightly across or around the vehicle. Stop within the designated refuelling area and leave enough space to use the pump safely.

Vehicle positioned beside a fuel pump
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you keep a dog on a leash near traffic?

331. Why should you keep a dog on a leash near traffic?

To give the dog priority when crossing the road.
To make it easier for drivers to hear the dog.
To allow the dog to walk closer to moving traffic.
✓ To prevent it from suddenly running into the road.

Dogs can react unpredictably to vehicles, people, noises, or other animals. Keeping a dog under close control on a leash near traffic reduces the risk of it suddenly entering the road and endangering itself or other road users.

Pedestrian keeping a dog on a leash near traffic
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid sudden steering movements on snow or ice?

332. Why should you avoid sudden steering movements on snow or ice?

They increase fuel consumption.
They make the tyres wear more quickly.
✓ They can cause the tyres to lose grip and the vehicle to skid.
They reduce the effectiveness of the headlights.

Abrupt steering can overwhelm the limited grip available on a slippery surface. Steering smoothly helps keep the vehicle stable.

Steering a vehicle on a snowy road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should pets be carried safely in a vehicle?

333. How should pets be carried safely in a vehicle?

✓ Securely restrained so they cannot distract the driver or move dangerously.
Loose on the front passenger seat.
Beside an open window so they can see outside.
On the driver's lap if they remain calm.

A pet moving freely inside a vehicle can distract the driver and may be thrown around during sudden braking or a collision. Use a suitable carrier, harness, barrier, or other secure restraint appropriate for the animal and vehicle.

Pet travelling inside a vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you be cautious when following a vehicle carrying a loose load?

334. Why should you be cautious when following a vehicle carrying a loose load?

The vehicle must always travel at a lower speed.
Loose loads prevent the driver from using the mirrors.
✓ Objects may fall onto the road.
Loose loads give the vehicle priority when changing lanes.

A poorly secured load can fall or shift suddenly. Keep extra distance and avoid following too closely.

Vehicle carrying an unsecured load ahead
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How should a motorcyclist cross tram or railway rails?

335. How should a motorcyclist cross tram or railway rails?

While braking firmly on the rails.
✓ At a safe angle, as close to perpendicular as practical.
At a very shallow angle alongside the rails.
With the motorcycle leaning sharply.

Rails can be slippery and can catch a motorcycle tyre, especially when wet. Cross them at a sufficiently large angle, as close to perpendicular as practical, and avoid sudden braking, acceleration or steering while crossing.

Motorcycle crossing rails in the road
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if your vehicle begins rolling backward on a steep incline?

336. What should you do if your vehicle begins rolling backward on a steep incline?

Open the door and step out.
Let it roll backwards and try again.
Switch off the engine and restart immediately.
✓ Apply the brake, secure the vehicle, and restart carefully.

Stop the vehicle under control, apply the parking brake if necessary, and prepare to move away again safely.

Vehicle rolling backwards on a steep incline
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do before opening your car door near traffic?

337. What should you do before opening your car door near traffic?

Open the door slowly and expect traffic to avoid you.
Check only the mirror before opening the door.
✓ Check for cyclists, pedestrians, and vehicles.
Check only for vehicles, not cyclists or pedestrians.

Before opening a car door, check carefully for cyclists, pedestrians, and vehicles to avoid causing a collision.

Checking for passing road users before opening a car door
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if exhaust fumes begin entering the car?

338. What should you do if exhaust fumes begin entering the car?

Switch the ventilation to recirculation and keep driving.
✓ Open the windows, stop safely, leave the vehicle, and seek assistance.
Ignore the fumes if no warning lights appear.
Turn up the heater to clear the fumes.

Exhaust gases may contain carbon monoxide, which is poisonous and may not be visible. The exhaust system should be inspected before the vehicle is used again.

Vehicle exhaust fumes and cabin ventilation
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if the accelerator becomes stuck while you are driving?

339. What should you do if the accelerator becomes stuck while you are driving?

Keep driving and wait for the accelerator to release.
Switch off the engine immediately before selecting neutral.
✓ Select neutral, brake firmly, and steer to a safe stopping place.
Press the accelerator harder to try to free it.

Selecting neutral disconnects engine power from the wheels. Brake firmly, maintain steering control, and switch off the engine after stopping safely.

Stuck accelerator pedal in a vehicle
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does turning a traditional ignition switch to OFF normally do?

340. What does turning a traditional ignition switch to OFF normally do?

Operates the starter motor.
Releases the parking brake.
✓ Switches off the engine and ignition systems.
Selects accessory power.

Turning a traditional ignition switch to OFF switches off the engine and ignition systems. The key can then normally be moved to the LOCK position and removed.

OFF position on a traditional ignition switch
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What should you do if a gear does not engage easily in a manual vehicle?

341. What should you do if a gear does not engage easily in a manual vehicle?

✓ Avoid forcing the gear lever.
Push the lever harder until the gear engages.
Release the clutch suddenly.
Press the accelerator fully.

If a gear does not engage easily, do not force the gear lever. Make sure the clutch is fully pressed and the vehicle's speed is suitable for the gear before trying again.

Operating a manual gear lever without forcing it
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you avoid resting your hand on the gear lever while driving?

342. Why should you avoid resting your hand on the gear lever while driving?

It can apply the parking brake.
It can disengage the clutch.
It can increase engine speed.
✓ It can cause unnecessary wear in the gear-selection mechanism.

Resting your hand on the gear lever can place unnecessary pressure on parts of the gear-selection mechanism and contribute to wear. Keep both hands on the steering wheel when you are not changing gear.

Driver's hand resting on a manual gear lever
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
What does this dashboard symbol indicate?

343. What does this dashboard symbol indicate?

✓ Low tyre pressure.
Brake-system warning.
Power-steering warning.
Electronic stability control.

This symbol indicates that one or more tyres may have low pressure. Check the tyre pressures and inspect the tyres for damage or a puncture.

Tyre-pressure warning symbol on the dashboard
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Which distance unit is used on road signs in Sweden?

344. Which distance unit is used on road signs in Sweden?

✓ Kilometres.
Miles.

Road distances in Sweden are normally shown in kilometres.

Distance units used on road signs
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you check your mirrors before braking?

345. Why should you check your mirrors before braking?

To check whether the road surface is slippery.
To decide which gear to use while slowing down.
To check whether your brake lights are working.
✓ To know what is happening behind you.

Checking your mirrors helps you understand what is happening behind you and anticipate how following traffic may react. In an emergency, do not delay necessary braking.

Driver checking following traffic before braking
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should a seat belt not be twisted when worn?

346. Why should a seat belt not be twisted when worn?

✓ A flat belt spreads collision forces more effectively.
A twisted belt prevents the airbags from working.
A twisted belt can cause the buckle to open.
A twisted belt makes the brakes less effective.

A seat belt should lie flat against the body without twists. A twisted belt concentrates force over a smaller area and may provide less effective protection in a collision.

Twisted seat belt across an occupant's body
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Why should you leave extra space when following a large vehicle?

347. Why should you leave extra space when following a large vehicle?

To prevent the large vehicle from changing lanes.
To reduce the amount of fuel your vehicle uses.
✓ To improve your view ahead and give yourself more time to react.
To make it easier for the large vehicle to accelerate.

A large vehicle can block your view of traffic, signs, junctions, or hazards ahead. Leaving extra space improves your view and gives you more time to react if traffic slows or a hazard develops.

Large vehicle limiting a following driver's view
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Where should you go after safely leaving a disabled vehicle in a tunnel?

348. Where should you go after safely leaving a disabled vehicle in a tunnel?

Remain beside the vehicle and wait for assistance.
Walk along the traffic lane toward the tunnel entrance.
✓ To a protected emergency area or exit away from traffic.
Stay close to the vehicle until traffic starts moving.

Move away from live traffic and use a marked emergency exit, refuge area, or protected walkway where available.

Leaving a disabled vehicle for a tunnel emergency area
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
Which EU driving licence category is used for tractors?

349. Which EU driving licence category is used for tractors?

✓ There is no single harmonised EU category.
Licence B.
Licence C.
Licence D.

There is no single harmonised EU driving licence category for agricultural or forestry tractors. The required licence depends on national rules. For example, Belgium uses category G, the Netherlands category T, and Germany categories L and T.

Tractor and agricultural driving licence categories
AI-generated by Traffic-rules.com • WCIT • CC BY-SA
How can higher speed affect fuel or energy consumption?

350. How can higher speed affect fuel or energy consumption?

✓ It can increase consumption because air resistance rises.
It reduces aerodynamic resistance.
It always reduces consumption.
It has no effect once the vehicle is moving.

As speed increases, aerodynamic resistance generally rises, so the vehicle needs more energy to maintain that speed. Driving smoothly at an appropriate speed can therefore reduce fuel or energy consumption.

Vehicle speed and aerodynamic resistance
AI-generated by Traffic-rules.com • WCIT • CC BY-SA