Plans for a £30 million bypass around Ely have won the backing of the district council.
The one-mile road will run to the south of the city and aims to solve bottlenecks caused by the level crossing at the train station.
However, the scheme has been criticised by English Heritage and the Campaign to Protect Rural England which say views of the cathedral could be harmed.
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The TV star Griff Rhys Jones has been part of an 8 hour reading marathon to celebrate the author of Swallows and Amazons.
A windy evening, clear spells and a few blustery showers. Strongest winds are likely along coastal areas.
Around 170 officers and staff from Cambridgeshire police, were drafted in to manage the demonstration.