Pluie verglaçanteÉtats-Unis
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256. Pluie verglaçante
La pluie verglaçante se produit lorsque des gouttes d’eau surfondue gèlent au contact de routes, véhicules et autres surfaces froides, formant une fine couche de glace. Les routes peuvent alors devenir extrêmement glissantes même si elles semblent simplement mouillées. Les conducteurs doivent ralentir, augmenter la distance de sécurité et éviter les accélérations, mouvements de direction ou freinages brusques. Les ponts, zones ombragées et routes non traitées peuvent être particulièrement dangereux, et les conditions peuvent évoluer rapidement tant que la pluie verglaçante continue.
What is freezing rain?
Freezing rain is rain that freezes when it reaches a sufficiently cold surface, forming a layer of ice on roads, vehicles and other objects.
Why is freezing rain dangerous for drivers?
Freezing rain can create very slippery and difficult-to-see ice, greatly reducing tyre grip and making steering and braking more difficult.
Is freezing rain the same as snow?
No. Snow falls as frozen crystals, while freezing rain falls as liquid droplets that freeze when they reach a cold surface.
Can freezing rain cause black ice?
Yes. Freezing rain can create a thin, transparent layer of ice that is difficult to distinguish from a wet road and is often described as black ice.
How should you drive in freezing rain?
Reduce speed, increase your following distance and use smooth acceleration, steering and braking. Avoid unnecessary driving if conditions become extremely slippery.
Where is freezing rain most dangerous?
Extra caution is needed on bridges, exposed roads, shaded areas and untreated surfaces, where ice may form quickly or remain longer.

Règles de circulation
États-Unis