A259 Brighton update at 10:48 - road remains closed both ways between the Pier Roundabout and Grand Avenue - severe delays as a result
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It's one of the biggest music events in the country. Thousands of people have arrived in Berkshire for this year's Reading Festival.
Anyone travelling this weekend is likely to face severe delays. Millions of extra cars are expected on the roads.
The forecast for the Bank Holiday weekend from Helen Plint.