Always be concerned for the safety of other road users. Be aware of the various factors and situations where you may have to take action to keep more vulnerable road users safe.

The symbols on the back or side of a lorry should show the type of material that the vehicle will normally be carrying.

On a hot day, the fuel in your tank will expand. If this happens when the tank has been filled to the brim, fuel will spill onto the road. This can be very dangerous or even fatal for other road users - especially motorcyclists. Allow for this expansion when filling your tank.

You mustn't park or stop on a road marked with double white lines (even where one of the lines is broken) except to pick up or set down passengers.

Normally, you should only use the hard shoulder for emergencies and breakdowns. On smart motorways, the hard shoulder may be used as a running lane, but only when speed-limit signs are shown directly above it. This technology has been introduced to ease traffic congestion.

Always maintain a safe following distance from the vehicle in front. If another vehicle pulls into the gap, slow down to re-establish a safe following distance. Following too close is dangerous and places you and other road users in unnecessary danger; your view of the road ahead will be seriously reduced, and you won't be able to see or plan effectively.

An unladen vehicle that also has high sides will be vulnerable to the effects of strong side wind. An evenly distributed load will help to keep the vehicle more stable, but the higher the vehicle is, the more it will be affected. Be aware that such a vehicle may become unstable or difficult to control in windy conditions.

Horses and their riders will move more slowly than other road users. They might not have time to cut across heavy traffic to take up a position in the offside lane when they're turning right; it could also be hazardous for them to do so. Therefore, a horse and rider may approach a roundabout in the left-hand lane, even though they're turning right.

While moving, hazard warning lights may only be used on a motorway or unrestricted dual carriageway to warn drivers behind of a need to slow down, due to a hazard ahead.

If there's a bend just before a level crossing, you may not be able to see the level-crossing barriers or waiting traffic. These signs give you an early warning that you may find these hazards just around the bend

Drinking black coffee or waiting a few hours won't make any difference. Alcohol takes time to leave the body, so you should find a way to get home without using your vehicle; for example, by public transport. Depending on how much you've had to drink, you may even be unfit to drive the following morning.

Puffin crossings have sensors that detect when pedestrians are using the crossing. The sensors control the timing of the traffic lights, and this means that there's no flashing amber phase as there is with a pelican crossing.

Select an appropriate gear in good time and, if your vehicle has a dashboard-mounted lever, apply the endurance brake (retarder) in stages. Braking too much, too soon may result in locking your drive wheels.

Plan your overtaking carefully. The weight of your vehicle, combined with the restrictions imposed by a speed limiter, is likely to make your vehicle lose speed on uphill gradients. You should take this into consideration before attempting to overtake another moving vehicle.

The term 'crawler lane' doesn't mean the lane is only for extremely slow vehicles. It's advising you of an extra lane on the left. Crawler lanes are usually built on sections of road where the length of the gradient is such that some large vehicles will be slowed to the point where they become a hazard for other road users.

The flashing amber light allows pedestrians already on the crossing to get to the other side before a green light shows to the traffic. Be aware that some pedestrians, such as elderly people and young children, need longer to cross. Let them do this at their own pace.

Make sure you or someone else has called the emergency services. Check the casualties and, if you feel able to give first aid, do so. Alternatively, ask any bystanders if they can help.

You should take precautions against dropping mud on the road, because it's a hazard to other road users. It's also an offence for which you could be prosecuted.

Never follow any road user too closely. This is particularly important when you're following scooter or motorcycle riders, or cyclists. They might brake or swerve suddenly; for example, to avoid a pothole on a road with a poor surface.

When you have to straddle the lanes at small roundabouts or junctions, always signal in good time. Be alert for inexperienced road users who may, without realising, put themselves into a dangerous position.

Rain makes the road surface slippery and reduces tyre grip. Doubling your separation distance should allow you the extra time and space you'll need to slow down and stop safely.

The handling of a six-wheeled bus or coach is not much different from that of a two-axle vehicle, except that punctures can be more difficult to detect.

When emerging, if you can't see, don't go. Be aware that there could be an approaching cyclist or motorcyclist hidden by parked vehicles. Edge out very slowly, checking in all directions, and be ready to stop.

If you become unwell, it will affect your ability to concentrate. You must be fully alert and ready for any hazards that might occur while you're driving. Stop in a safe place and call for help. You may have to call out a relief driver to complete the journey for you.

Plan ahead and use your endurance brake (retarder) to help keep your speed in check on long downhill gradients. This can help to prevent your brakes from overheating and fading.

On smart motorways, the hard shoulder can be used as a running lane when a speed limit is shown above it. However, a red cross above the hard shoulder means that this lane shouldn't be used, except for emergencies and breakdowns.

You should be familiar with all the warning lights fitted to your vehicle. The oil warning light indicates low oil pressure or lack of oil. If it lights up, report the fault and don't continue until it's been corrected.

When more than one sheet is used to cover and protect a load, the rear sheet should be positioned first. This is so that the overlaps face backwards, rather than forwards, preventing wind and rain from getting between the sheets.

The hours of operation of Red Routes vary from one area to another. As a rule, you mustn't stop on a Red Route, but there may be special marked boxes where loading and unloading can be carried out at certain times. Look out for signs giving information about the restrictions in place.