John Laite, Highways Manager for Bristol City Council, says congestion in Bristol is well managed.
He says research carried out by a sat nav company has given the "wrong image" of the city being the most congested in England.
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Bristol Mayor George Ferguson has been accused of a "nasty personal attack" in a row over how the city's Green Capital cash was spent.
Bristol Mayor George Ferguson says there will be "further breakdown" of how the city's Green Capital cash was spent.