THOUSANDS of motorists have been caught speeding by cameras on the M275, The News can reveal.
Police say they recorded 4,488 offences on the road since the average speed cameras were switched on in March.
While the figure makes up only 0.04 per cent of motorists who used the road in that time, it is estimated to represent a £270,000 cash haul for the government.
The number of offences captured by the cameras has been declining since the start of the scheme.
In the first month, 1,889 drivers were caught, but more recently the number of offences has been in the lower hundreds.
Inspector Steve Wakeford, of Hampshire Constabulary’s Roads Policing Unit, told The News: ‘We can see there has been a significant decrease in motorists exceeding the 40mph limits on the M275 since the average speed cameras were installed.
‘We welcome this fall in numbers and thank the majority of drivers complying with the temporary limit. It seems the cameras continue to be successful in encouraging motorists to slow down as they approach the city on the M275.’
Since work began on the £28m Tipner interchange project, traffic going out of the city has been restricted to 40mph.
Traffic coming in has temporary 50mph and 40mph zones.
The temporary speed limits are a requirement of the Department for Transport when working on motorways.
Hampshire Constabulary says they are enforced to protect construction workers and ensure the safety of road users passing through the parts of the M275 which have work going on.
Speeders face a £60 fine and three points on their licence – or they can opt to take a Driver Awareness Course if they have not had a speeding offence in the last three years.
All fines paid out by motorists will go to Her Majesty’s Revenue & Customs, not the police or Portsmouth City Council.
The News has submitted a request under the Freedom of Information Act to discover the exact amount of cash forked out by drivers in fines, but it is estimated to be around £270,000.