Two men were convicted of speeding on the Kingsway.
Brian Evans, 40, of Rosemount Road, was fined £100.
Evans admitted that on February 15 this year, at the A90 Kingsway West at Charlotte Street, he drove at 52mph in the 40mph zone.
Meanwhile, Kelly Green, 32, of Dales Road in Peterhead, was fined £120 at the Justice of the Peace court.
Green admitted that on February 19 this year he drove at 52mph in the 40mph zone of Kingsway West at Charlotte Street.