Visibility can be made worse because at higher speeds vehicles, especially large ones, throw up more spray.
Ice or Frost:
Best advice don’t drive unless absolutely necessary.
The presence of ice or frost can seriously affect four handling of the vehicle. Try to anticipate the road surface conditions. If your steering is light, it is an indication that there may be frost or ice. A very gentle touch of your brakes to see their response could help you judge the road surface conditions.
If there is fog you must be able to stop within the distance you can see to be clear.
Unfortunately, multiple pile ups are all too common in foggy conditions. They don’t just happen. They are caused by drivers who are:
Do switch on fog lamps if visibility drops below 100 metres.