Slippery roadItaly
1. Slippery road
A slippery road has reduced tyre grip and can make steering, braking and acceleration less effective. Roads may become slippery because of rain, ice, snow, mud, oil, loose material or other substances on the surface. Drivers should reduce speed, increase their following distance and avoid sudden steering, braking or acceleration. Extra caution is needed in bends, on bridges and wherever the road surface changes unexpectedly.
What can make roads slippery in Italy?
Be prepared for heavy rain and snow or ice in Alpine and Apennine areas. A surface can become slippery even if it looks clear, and different parts of the road may have very different grip.
🔗 aci.gov.it • Italy, Road Code — articles 39, 140–142, 148, 150, 157–158, 191
🔗 aci.gov.it • ACI official Road Code — article 39
How should you drive on a slippery road in Italy?
Reduce speed early, increase the gap to the vehicle ahead and use smooth steering, braking and acceleration. Do not rely on the posted maximum as a safe target when grip is poor.
🔗 aci.gov.it • Italy, Road Code — articles 39, 140–142, 148, 150, 157–158, 191
🔗 aci.gov.it • ACI official Road Code — article 39
Does a slippery-road warning sign in Italy automatically impose a lower number?
The warning sign highlights a reduced-grip risk; it normally does not itself prescribe a new numerical speed limit. A separate speed-limit sign, temporary restriction or local condition may still apply. Travel below the legal maximum when necessary for safety.
🔗 aci.gov.it • Italy, Road Code — articles 39, 140–142, 148, 150, 157–158, 191
🔗 aci.gov.it • ACI official Road Code — article 39
🔗 aci.gov.it • ACI official Road Code — article 141
🔗 aci.gov.it • ACI official Road Code — article 154
Warning for a slippery road surface.
English • Traffic sign II.22 • Slippery road. Warns of a section that may be more slippery than normal under particular conditions. Supplementary plates specify rain, ice or other causes.
Italiano • Figura II.22 • Strada sdrucciolevole. Presegnala un tratto che, in particolari condizioni, può essere più sdrucciolevole del normale. Le condizioni di pioggia, gelo o altre cause sono precisate dai pannelli integrativi.
Sources
🔗 Commons.wikimedia.org (F l a n k e r • CC BY-SA 3.0)
🔗 Normattiva.it • D.P.R. 495/1992 • testo vigente • art. 93, comma 1–2
🔗 Gazzettaufficiale.it • Gazzetta Ufficiale • Figura II.22 • pagina 251
SVG source: F l a n k e r • CC BY-SA 3.0 • Original revision 2011-02-05. Wikimedia original unmodified.

Traffic rules
Italy