Short-wheelbase vehicles will bounce more noticeably than some long-wheelbase vehicles when empty. This can affect braking efficiency and all-round control.

When the lights turn to green, you may drive on, but only if the crossing is clear. You should wait for any pedestrians to finish crossing, regardless of their age. Allow them to cross the road at their own pace; don't try to hurry them in any way.

A bus equipped with a speed limiter must also be fitted with a plate showing the speed setting. This must be fitted in an obvious position, where it can be clearly seen.

Staying well behind the vehicle in front will improve your view of the road ahead. This will give you more time and room to react to hazards. Use the two-second rule to make sure you're not too close. Don't move out to the right, as this could put you into the path of an oncoming vehicle or obstruct smaller vehicles that wish to overtake.

Before driving a vehicle fitted with anti-lock brakes, refer to the handbook. This will give you details of the manufacturer's recommended method of use. Remember, anti-lock brakes will enhance your skills, but they can't replace them.

If your vehicle catches fire in a tunnel, you should first try to drive it out - but only if you can do so safely.

Before overtaking, you need to make sure it's safe to carry out the manoeuvre. As part of your check, look well ahead for road junctions. You shouldn't overtake as you approach a road junction, because if a vehicle emerges, or has to wait to turn, you could risk a collision.

Moving a casualty could cause further injury, so it's important that this is only done if there's danger to them where they are.

When braking a vehicle carrying a liquid load, it's important to apply even pressure on the brake pedal. Don't relax the pedal pressure until the vehicle has stopped. Secure the vehicle with the parking brake before releasing the footbrake; this will minimise the risk of unintentional movement of the vehicle caused by 'surge' from the liquid load.

Red diesel is subject to less excise duty than standard diesel, so it's considerably cheaper. It may only be used for authorised purposes. Any driver whose vehicle is found to be using this fuel illegally faces penalties.

Listen to the weather forecast and plan your route to avoid exposed or high-level roads if windy weather is expected.

Some bus lanes operate only during peak hours and other vehicles may use them outside these hours. Make sure you check the sign for the hours of operation before driving in a bus lane.

Passing the moped and then turning into the junction could mean that you cut across in front of the rider. This might cause them to slow down, stop or even lose control.

Blind spots can occur when bodywork - such as a door or window pillar - restricts your view. Different types of vehicle have different blind spots.

If your vehicle breaks down in a tunnel, it could present a danger to other traffic. First, switch on your hazard warning lights. If there are passengers in your vehicle, take them to the nearest exit point. You should then call for help from an emergency telephone. Don't rely on being found by the police or being seen by a CCTV camera. The longer a vehicle stays in an exposed position, the more danger it poses to other traffic.

If diesel fuel becomes very cold, it can partially solidify. Additives are used by the fuel companies to try to prevent this. Any solidifying (waxing) of the fuel can prevent it from flowing properly and cause the engine to run erratically or even stop.

All drivers should play their part to protect the environment against traffic pollution. Make sure the vehicle you drive is properly maintained. Report any defects, such as excessive exhaust smoke, as soon as you can.

If you drive a vehicle carrying dangerous or hazardous material, you must make sure the correct symbol or mark is clearly visible.

Drivers passing incidents often end up having collisions themselves when they're distracted by the scene. You need to keep your concentration in a situation like this and ignore what's happening on the other carriageway.

It's important to use a low gear and keep the engine speed high to prevent water from entering the engine through the exhaust system. In these circumstances, it may be necessary to slip the clutch to keep the road speed as low as possible.

Motorcyclists and cyclists may be more difficult to see, especially at junctions. They can be easily hidden by obstructions such as other vehicles, and the small size of an approaching motorcycle may make it difficult to judge its speed and distance. It's vital that you don't emerge until you're sure it's safe.

Some highly dangerous chemicals have to be transported at prescribed temperatures. Drivers must be fully trained in the use of these specially designed, temperature-controlled vehicles.

Theft of loads from commercial vehicles is a serious problem. You should take steps to safeguard your load when leaving the vehicle overnight. Simply parking with the rear doors close to another vehicle or a wall can act as an effective deterrent to thieves.

At the scene of an incident, the first priority is to prevent any further collisions by warning traffic. You can warn other traffic by switching on hazard warning lights or displaying an advance warning triangle, or by any other appropriate means.

Always look into the road you're entering. If pedestrians are already crossing, be considerate and give way to them. Don't wave or signal them to hurry; they have priority here.

Small battery-powered vehicles are often used by disabled people. On unrestricted dual carriageways, these vehicles must show a flashing amber light. Be very careful, as they have a maximum speed of 8 mph. You may see other slow-moving vehicles with amber flashing lights, such as agricultural vehicles.

Roll-over' usually happens as a result of the inside rear wheels of an articulated vehicle starting to lift when the driver changes direction sharply. This tends to happen when a driver is changing direction to leave a roundabout. If the load moves during the change of direction, the vehicle is increasingly at risk of rolling over. The problem often involves vehicles carrying fluids in bulk.

Overloading a vehicle is dangerous. Your stopping distance will increase, and your vehicle could become unstable and difficult to control. You'll need to work out the payload. Do this by taking away the kerbside weight from the maximum authorised mass (MAM). This will give you the maximum weight you can carry.

If you attempt to move a casualty who has a spinal injury, it could cause further damage. Make sure an ambulance has been called for and talk to the casualty to keep them calm.