Whenever possible, call the emergency services first. If you're able to give first aid, remember DR ABC. Check for Danger, then check the casualty for a Response. Check the Airway, and try to establish Breathing by gently lifting the chin up and forward. Give Compressions if necessary. Try to stop any severe bleeding. If you feel you aren't capable of carrying out first aid, consider taking some training. It could save a life.

Parking on the yellow zigzag lines will block the view of the school entrance. This will endanger the lives of children wanting to cross the road on their way to and from school.

Misuse of drugs and/or alcohol may lead to the withdrawal of your driving licence. Future insurance premiums will probably increase as well.

Children getting off the bus will be hidden from your view, and they may not be able to see you. Even if they can see you, they may have poor judgement of danger. You should drive slowly as you pass the bus and be ready to stop.

Only change lanes if doing so won't inconvenience another road user. Merging drivers have a responsibility to give way, if necessary, and not force their way onto the main carriageway. Planning ahead will ensure you're prepared to deal with these situations.

Give way to buses whenever you can do so safely, especially when they signal to pull away from bus stops. Look out for people who have left the bus and wish to cross the road. Also look for people rushing to catch a bus: they may be more concerned about catching the bus than watching for traffic.

Plan well ahead and take care if you need to move out or straddle lanes due to the length of your vehicle. Other road users may not understand your reasons for doing this and may try to pass on your left. Check your mirrors before and as you turn. It's better to use extra space on the road you're leaving than to find there's not enough room when you turn in.

Driving at high speed on a wet motorway can throw up dense spray, making it very difficult for other drivers to see ahead. Driving more slowly reduces the amount of spray and this makes it safer for other drivers.

The reverse warning bleeper is fitted to your vehicle to warn others near the vehicle that it's reversing. However, it's no substitute for good all-round observation. Get someone to guide you if you can't see clearly where you're reversing.

By driving smoothly, you'll reduce fuel consumption by about 15%, and you'll reduce the amount of wear and tear on your vehicle. You'll also feel more relaxed and have a more pleasant journey.

Passengers shouldn't leave any personal property on the vehicle, unless it can be locked in secure luggage compartments.

Double red lines indicate that you're on a Red Route and in a no-stopping area. Red Routes also have single red lines, with signs showing the times that restrictions are in force. There are also parking and loading boxes, which have signs explaining the restrictions that apply.

If you're carrying children on your vehicle and it isn't on a scheduled route used by the general public, the bus must display this sign to the front and rear. When carrying children to and from school, it's likely that you'll have to make several stops in places other than recognised bus stops. Think carefully before you stop. Don't cause unnecessary inconvenience to other road users.

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.

Lack of oil could cause the engine to seize, and this could cause sudden and unexpected loss of control. You could break down in a dangerous position and put yourself and other road users at risk.

Cold water will cool the burning tissue and help prevent further damage. It will also reduce swelling, minimise shock and alleviate pain. Use water, or any other liquid, that's clean and non-toxic.

Standing on or near the edge of the carriageway is very dangerous. Your priority is to alert the emergency services by using an emergency roadside telephone. This connects to an operator, who'll get help out to you as soon as possible. In most cases, this is preferable to using a mobile phone, as it will show the operator your precise location.

It's vital that you give yourself enough separation distance when driving on icy roads - ten times as much as in normal conditions. You should brake gently to reduce the risk of losing control.

It's an offence to leave your vehicle unattended at any time without applying the parking brake.

If you're approaching a set of traffic lights and you can see they've been on green for a while, be prepared for them to change. Ease off the accelerator and be ready to come to a gradual stop if you need to. Don't try to beat the red light; it may change as you come closer, causing you to brake late and harshly. Think of your passengers.

A motorcycle can be lost out of sight behind another vehicle. The use of the headlights helps to make the motorcycle more easily seen.

Cycling in today's heavy traffic can be hazardous. Some cyclists might not feel happy about crossing the path of traffic to take up a position in an outside lane. Be aware of this and understand that, although they're in the left-hand lane, the cyclist might be turning right.

As well as a height restriction, the tunnel may have a restriction on the available width of headroom for high vehicles. The advance warning gives you the opportunity to find another route if your vehicle is too high or wide to drive through the tunnel.