The A24 in the Horsham district has been revealed as a Sussex speeding hotspot by statistics released this week.
Speed cameras positioned on the road between Horsham and Worthing caught four of Sussex’s five worst speeding offenders in 2014.
Three of the offences occurred at Dial Post, with the fourth at Shipley.
The most excessive case of speeding in the district saw one driver travel past a speed camera at Dial Post at 122mph - more than twice the 60mph speed limit.
Speeds of 112mph and 103mph also recorded at Dial Post.
The A24 at Shipley, which also has a 60mph limit, saw a motorist travel past at 108mph.
However, the worst case of speeding in the county was in East Grinstead, where one driver reached 128mph in London Road, exceeding the 30mph speed limit by 98mph.
A Freedom of Information request made by the Institution of Advanced Motorists (IAM) to each of England and Wales’ police forces revealed that Britain’s worst speeders in 2014 were caught at 146mph, both by Kent Police on the M25.
London’s worst speeder was recorded at 123mph on a 30mph road by the Metropolitan Police.
The IAM asked each police force to disclose the highest recorded incidences of speed caught on safety cameras in 2014.
Sarah Sillars, IAM chief executive officer, said: “It is disheartening to say the least that some road users are showing such disregard for the safety of all other road users – pedestrians, cyclists, motorcyclists and other drivers.
“At speeds of 140mph an individual is travelling at nearly two-and-a-half miles a minute. At that speed it is simply impossible to react to anything that might happen in front of you.
“In short, all these individuals are playing with their own lives and others – they are all accidents waiting to happen and it requires a major shift in the attitudes of these people to think about safety.”