- Jan 17, 2017
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Redlight cameras !!! New tech being installed, vs old tech
- Thread starter mat200
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For the record, video vehicle detection technology is not that new. The city in north CA where I was the Traffic Signal and Lighting Maintenance Supervisor installed its first Econolite AutoScope™ system in 1993, over 30 years ago.
By the time I retired in '04 I had managed the contracts to install total video detection at 15 more intersections as the city began abandoning inductive loops that were installed into saw cuts in the roadway and instead relying on purpose-built video cameras for lane detection of vehicles.
Although somewhat interesting to the uninitiated or uninformed, what the YT video short depicts is no revelation....it's nothing new.
By the time I retired in '04 I had managed the contracts to install total video detection at 15 more intersections as the city began abandoning inductive loops that were installed into saw cuts in the roadway and instead relying on purpose-built video cameras for lane detection of vehicles.
Although somewhat interesting to the uninitiated or uninformed, what the YT video short depicts is no revelation....it's nothing new.
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Many of the red light cameras where I live are also speed cameras.
So if you speed up to beat the lights and go through a red you'll not only get a fine for the red light you'll get pinged for speeding too.
So if you speed up to beat the lights and go through a red you'll not only get a fine for the red light you'll get pinged for speeding too.
- Jan 17, 2017
- 15,389
- 25,939
For the record, video vehicle detection technology is not that new. The city in north CA where I was the Traffic Signal and Lighting Maintenance Supervisor installed its first Econolite AutoScope™ system in 1993, over 30 years ago.
By the time I retired in '04 I had managed the contracts to install total video detection at 15 more intersections as the city began abandoning inductive loops that were installed into saw cuts in the roadway and instead relying on purpose-built video cameras for lane detection of vehicles.
Although somewhat interesting to the uninitiated or uninformed, what the YT video short depicts is no revelation....it's nothing new.
can now make cars out of plastic ..
Here they are using flir thermal cams for detection.
No real picture can be recorded and violate your privacy
No real picture can be recorded and violate your privacy
- Jan 17, 2017
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Yes, it was high time starting in early 90's to move away from inductive loops to detect ferromagnetic metals in vehicles (iron, steel) as vehicles were moving toward aluminum blocks, wheels, etc. and other alloys and of course, polycarbonate plastic, etc. for frame and body parts. Video detection came along about the right time but like any new tech it was not without growing pains.
Twice a year, at the vernal equinox and at the autumnal equinox, the cameras assigned to roadways that faced either due east or due west could be temporarily blinded during sunrise and sunset because the sun would rise due east and set due west.
Canoga Systems (purchased by 3M later) developed the figure-8 "quadrapole" inductive loop design to more dependably detect high-axle vehicles and low-ferromagnetic motorcycles, bikes, etc.
Occlusion from adjacent lanes cause inaccurate detection with radar and ultrasonic detectors if looking at the intended lane from a pole on the side of the road.....video detection and even radar and ultrasonic from straight ahead and from overhead the best....with video the higher the better, with limits, of course.
Radar/ultrasonic in use since mid 70's, which superseded magnetic detectors buried in pavement in use since 60's which replaced mechanical treadles from the 40's.