Vascar error warning
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HAULIERS and coach operators who have had drivers prosecuted for speeding will find consolation in a recent case involving a private motorist fined and banned from driving for three months for driving at I40.8mph, as recorded by police Vascar (Visual Average Speed Computer And Recorder) equip ment. • But the driver thought he was doing about 115mph and his car's makers said that his particular model could not exceed 1,20mph.
Motor, has voiced doubts about the accuracy of Vascar and so has the RAC. Both emphasise that the equipment's accuracy depends on the policeman operating it.
The operator has to start and stop the timing part of Vascar when the suspect vehicle passes fixed points. The speed is then computed from this time and the measured distance.
If the policeman misjudges the moment when the observed vehicle passes these fixed points an inaccurate speed reading is given.