Frank Blackmore OBE DFC (16 February 1916 – 5 June 2008) was a British airman and traffic engineer.
Along with his sisters Lorna and Violette and brother William, he later moved to Lausanne, Switzerland, the birth country of his mother.
He started to work for Colchester borough council until the outbreak of World War II when he joined the Royal Air Force.
He was awarded the Air Force Cross for his actions when he made an emergency landing on the beach at Ardnamurchan Point.
During his time with the TRL he came up with several ideas to improve the flow of traffic at junctions: in particular, the offside-priority rule at roundabouts, and the mini-roundabout, which was officially adopted in 1975.