Thurrock Council said public safety is its responsibility and it had arranged for the area to be fenced off and for temporary traffic lights to be in place.
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RMT members staged a protest outside Parliament to mark the anniversary of the first strike one year ago today.
The former mayor of Tower Hamlets, was forced to step down after he was found guilty of a string of corrupt and illegal practices.
The service is the first to be held in the singer's honour since the private funeral held by the family at Highgate Cemetery on March 29.