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Topic: Driving safely in difficult conditions · Nº 140 / 247

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En caso de existir niebla espesa, además de reducir la visibilidad, ¿puede disminuir la adherencia de los neumáticos sobre la calzada?

In thick fog, as well as visibility being reduced, can the grip of the tyres on the carriageway decrease?

  • ASí, pero solamente en caso de frenar bruscamente.Yes, but only when braking sharply.
  • BNo, la adherencia de los neumáticos solamente disminuye cuando llueve.No, tyre grip only decreases when it rains.
  • CSí, debido a que la niebla humedece la calzada haciéndola más deslizante.Yes, because fog makes the carriageway damp and more slippery.
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Correct answer

  • CSí, debido a que la niebla humedece la calzada haciéndola más deslizante.Yes, because fog makes the carriageway damp and more slippery.
Explanation

Thick fog leaves a thin layer of moisture on the road surface that makes it slippery: as well as reducing visibility, it reduces tyre grip all the time, not only when braking.

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