This sign is used to warn of overhead electrified cables and is usually accompanied by a plate indicating the safe height limit.

Be aware that this is just the braking distance. You need to add the thinking distance to this to give the overall stopping distance. At 50 mph, the typical thinking distance will be 15 metres (50 feet), plus a braking distance of 38 metres (125 feet), giving an overall stopping distance of 53 metres (175 feet). The stopping distance could be greater than this, depending on your attention and response to any hazards. These figures are a general guide.

You should give way to pedestrians crossing or waiting to cross the road into which or from which you're turning. Be patient if they're cautious, and let them check that it's safe from all directions before they step into the road. Do not signal or wave them to cross.

Young and inexperienced motorcyclists often have more confidence than ability. It takes time to gain experience and become a good rider. Make sure you have the right attitude and put safety first.

These signs apply only to tram drivers, but you should know their meaning so that you're aware of the priorities and are able to anticipate the actions of the driver.

Staying back will increase your view of the road ahead. This will help you to see any hazards that might occur and give you more time to react.

Signs with blue circles mostly give a positive instruction. These are often found in urban areas and include signs for mini-roundabouts and directional arrows.

Check your tyre pressures frequently - normally once a week. If they're lower than those recommended by the manufacturer, there will be more 'rolling resistance'. The engine will have to work harder to overcome this, leading to increased fuel consumption.

The studs between the carriageway and the hard shoulder are normally red. These change to green where there's a slip road, helping you to identify slip roads when visibility is poor or when it's dark.

Take care when using single-track roads. It can be difficult to see around bends, because of hedges or fences, so expect to meet oncoming vehicles. Drive carefully and be ready to pull into or stop opposite a passing place, where you can pass each other safely.

If you know which light is going to show next, you can plan your approach. This will help prevent excessive braking or hesitation at the junction.

If you're riding at night or in poor visibility, tinted lenses or a tinted visor will reduce the amount of available light reaching your eyes, making you less able to see clearly.

If you follow a large vehicle too closely, your view beyond it will be restricted. Drop back. This will help you to see more of the road ahead. It will also help the driver of the large vehicle to see you in their mirrors and will give you a safe separation distance if the lorry needs to stop suddenly.

These lines may be painted on the road on the approach to a roundabout, a village or a particular hazard. The lines are raised and painted yellow, and their purpose is to make you aware of your speed.

When approaching a tunnel, switch on your dipped headlights. Be aware that your eyes might need to adjust to the sudden darkness. You may need to reduce your speed.

You'll normally be sent a reminder automatically by DVLA close to the time of renewal. Make sure that all your documentation is correct, up to date and valid. You can renew online, by phone or at certain post offices.

If a young child has stopped breathing, first check that their airway is open and then begin CPR. With a young child, you may only need to use one hand and you shouldn’t press down as far as you would with an adult. Continue the procedure until the child is breathing again or until a medical professional takes over.

When you tow a trailer, remember that you must obey the reduced speed limits of 50 mph on a single carriageway and 60 mph on a dual carriageway or motorway. Make sure that the trailer is hitched correctly and that any load in the trailer is secure. You should also bear in mind that your stopping distance may increase.

Don't park within 10 metres (32 feet) of a junction (unless in an authorised parking place). This is to allow drivers emerging from, or turning into, the junction a clear view of the road they're joining. It also allows them to see hazards such as pedestrians or cyclists at the junction.

In some towns and cities there are special areas reserved for parking motorcycles. Look out for these signs.