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Thursday, April 21, 2011

Business owner casts reasonable doubt on accuracy of speed cameras

Five times and counting before three different judges, the Prince George’s County business owner has used a computer and a calculation to cast reasonable doubt on the reliability of the soulless traffic enforcers.
After a judge threw out two of his tickets Wednesday, Mr. Foreman said he is confident he has exposed systemic inaccuracies in the systems that generate millions of dollars a year for town, city and county governments.
He wasn’t the only one to employ the defense Wednesday. Two other men were found not guilty of speeding offenses before a Hyattsville District judge during the same court session using the same technique.
“You’ve produced an elegant defense and I’m sufficiently doubtful,” Judge Mark T. O’Brien said to William Adams, after hearing evidence that his Subaru was traveling below the 35-mph limit - and not 50 mph as the ticket indicated.
This is a copy of a composite photo made by Will Foreman from a speed camera on northbound Route 210 at Livingston Road in Forest Heights made on July 22, 2010, showing a truck owned by Mr. Foreman traveling on the road.This is a copy of a composite photo made by Will Foreman from a speed camera on northbound Route 210 at Livingston Road in Forest Heights made on July 22, 2010, showing a truck owned by Mr. Foreman traveling on the road.
The method?
Mr. Foreman, the owner of Eastover Auto Supply in Oxon Hill, examined dozens of citation photos of his company’s trucks that were issued along a camera-monitored stretch of Indian Head Highway his employees frequently travel.
The camera company, Optotraffic, uses a sensor that detects any vehicle exceeding the speed limit by 12 or more mph, then takes two photos of it for identification purposes. The photos are mailed to violators, along with a $40 ticket.
For each ticket, Mr. Foreman digitally superimposed the two photos - taken 0.363 seconds apart from a stationary point, according to an Optotraffic time stamp - creating a single photo with two images of the vehicle.
Using the vehicle’s length as a frame of reference, Mr. Foreman then measured its distance traveled in the elapsed time, allowing him to calculate the vehicle’s speed. In every case, he said, the vehicle was not traveling fast enough to get a ticket.

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