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How best to drive in snow and ice?

17 December 2010 Last updated at 09:33 GMT

With a new onslaught of freezing conditions predicted and roads becoming more treacherous, the usual advice is not to drive unless you really have to.

But what if your journey really is essential? The BBC's Richard Westcott spoke to the AA's Ben Graham to find out more about the safest way to drive on ice.