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New speed cameras trap motorists from space
By By Richard Savill 6:30AM BST 20 Apr 2010
A new type of speed cameras which can use satellites to measure average speed over long distances are being tested in Britain.
Satellites could track motorists from space if trials prove successful
The cameras, which combine number plate reading technology with a global positioning satellite receiver, are similar to those used in roadworks.

The AA said it believed the new system could cover a network of streets as opposed to a straight line, and was “probably geared up to zones in residential areas.”

The Home Office is testing the cameras at two sites, one in Southwark, London, and the other A374 between Antony and Torpoint in Cornwall.
The `SpeedSpike’ system, which calculates average speed between any two points in the network, has been developed by PIPS Technology Ltd, an American-owned company with a base in Hampshire.

Details of the trials are contained in a House of Commons report. The company said in its evidence that the cameras enabled "number plate capture in all weather conditions, 24 hours a day". It also referred to the system's "low cost" and ease of installation.
The system could be used for "main road enforcement for congestion reduction and speed enforcement", and could help to "eliminate rat-runs" and cut speeds outside schools, it added. It could also reduce the need for speed humps.
The development of speed cameras has raised concerns about expanding state surveillance.
The Home Office said it was unable to comment on the trials because of "commercial confidentiality".

The AA said it would watch the system “carefully” but it did not believe there was anything sinister. “It is a natural evolution of the technology that is out there,” a spokesman said.
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seems quite strange as many can 'write' to and 'receive data from' satellites,