Because of the way the...
Because of the way the statistics are analysed, each of the following groups has a 100-car league table. These are the top three for each category.
Called Celldar, it"s...
Called Celldar, it"s so powerful that an aerial the size of a dinner plate could spot a lorry up to 30 miles away - and follow cars anywhere in Britain.
The cell phone radar detectors watch the radiation that is constantly emitted by the thousands of mobile phone masts which are located across the UK. Moving objects are particularly easy to pick out against this background, and can be detected in darkness without requiring a direct line of sight. The detectors can even show pedestrians and cyclists.
Tests of the radical monitoring technology have been carried out for the Department for Transport by consultant Faber Maunsell. The DfT says it could monitor traffic on rural networks where it"s too costly to install cameras or other detectors.
The aerials are solar-powered and communicate in the same way as mobile phones, so they can be placed virtually anywhere. They"d spot accidents or alert police to unusual driver behaviour such as rapid U-turns. The report cost the DfT í‚á£30,000. "We"re considering its implications," said a spokesman.