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Advice for adverse weather conditions

Here you will find information about driving in poor weather conditions.

Fog 

  • Allow more time for your journey;
  • Keep your windscreen, lights, windows and reflectors clean by using your windscreen wipers, washers and demisters;
  • See and be seen. Use dipped headlights. Use front and rear fog lights but only while visibility is seriously reduced (defined as less than 100 metres);
  • Slow down so you can stop within the distance you can see;
  • If there is a vehicle in front, do not hang onto its taillights, as this gives a false sense of security and can be hypnotic. In thick fog, if you can see the vehicle in front you are probably driving too close, unless traffic is travelling very slowly;
  • Keep an eye on your speed. Often, motorway drivers are travelling faster than they think they are.
  • Observe the motorway “Fog” signs, you may think the fog has cleared but be running into a further bank of drifting fog. Fog patches are particularly dangerous. 

Rain

  • Reduce your speed. You have no control over your own or other vehicles aquaplaning.
  • Spray from other vehicles can obscure your vision.  

Wind

  • In cross winds or where road signs indicate wind danger, be prepared for deflection from your course especially when passing high vehicles or bridges.   

Darkness or reduced visibility

  • In darkness switch on your headlights, whether the motorway is lit or not. Dip your headlights before they dazzle a vehicle ahead of you or in the opposite carriageway.
  • In reduced daytime visibility use dipped headlights. 

Winter driving

You can find information on salting and gritting, travel precautions and latest travel news on our winter service pages.
  • Drive with care, whether or not the road has been treated with salt or grit;
  • Be aware that your route might not be treated along its entire length;
  • Keep a safe stopping distance between your vehicle and the one in front, and don’t brake suddenly. Drop down a gear to enable the engine to help with braking;
  • Use dipped headlights in poor conditions;
  • Only use fog lights if visibility is less than 100 metres.  Remember to switch them off when visibility improves;
  • Watch out for vulnerable road users such as pedestrians and cyclists;
  • Take care when travelling behind salting vehicles and snow ploughs. Keep a safe distance and do not attempt to overtake them; 
  • Take a break to help keep yourself alert for the rest of your journey; 
  • Keep speeds low.

When the gritters are out

  • Take care if you’re out on the road when gritting is taking place;
  • Gritters travel at 30mph spreading salt across all lanes.  Remain at a safe distance and do not attempt to overtake the vehicle.  They are extremely powerful and will often perform unusual or sudden manoeuvres to carry out their work. Leave plenty of space so that you do not get covered by salt.
The gritters follow set routes in order to cover the road network as efficiently as possible. When they travel between treated routes they will not be spreading salt, but the same precautions apply. 

If you get stranded

  • Try to make certain that your vehicle does not block access for emergency vehicles, including the winter maintenance teams;
  • If there is no shelter nearby, remain with your vehicle;
  • Keep moving to maintain your body circulation.