The whole of Norwich city centre will be subject to a 20mph speed limit.
The £400,000 plan to introduce lower limits on every road within the old city wall was ratified this morning in a bid to make the city safer for cyclists and pedestrians.
At the Norwich Highways Agency committee meeting, council officers said the plan would be in place by March 31 next year.
Some of the city centre's streets are already restricted to 20mph, but the changes, part of the £5.7m Push the Pedalways project, would see many more included.
They are: Ber Street, Duke Street, Westwick Street, Rouen Road, Whitefriars and Heartsease outside the city.
It is thought Norwich is the first city in the region to introduce the blanket limit.
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